Available XQuery Functions

Returns an xs:QName with the namespace URI given in $a. If $a is the empty string or the empty sequence, it represents 'no namespace'. The prefix in $b is retained in the returned xs:QName value. The local name in the result is taken from the local part of $b

Returns the absolute value of the argument. If the argument is negative returns -arg otherwise returns arg.

Adjusts an xs:date value to the implicit timezone of the current locale.

Adjusts an xs:date value to a specific timezone, or to no timezone at all. If $b is the empty sequence, returns an xs:date without a timezone.

Adjusts an xs:dateTime value to the implicit timezone of the current locale.

Adjusts an xs:dateTime value to a specific timezone, or to no timezone at all. If $b is the empty sequence, returns an xs:dateTime without a timezone.

Adjusts an xs:time value to the implicit timezone of the current locale.

Adjusts an xs:time value to a specific timezone, or to no timezone at all. If $b is the empty sequence, returns an xs:time without a timezone.

Returns the average of the values in the input sequence $a, that is, the sum of the values divided by the number of values.

Returns the value of the base-uri property for the context item.

Returns the value of the base-uri property for $a. If $a is the empty sequence, the empty sequence is returned.

Computes the xs:boolean value of the sequence argument.

Returns a value of the same type as the argument. Specifically, returns the smallest (closest to negative infinity) number with no fractional part that is not less than the value of the argument.

Returns true or false depending on whether the value of $a is equal to the value of $b, according to the Unicode code point collation

Creates an xs:string from a sequence of code points. Returns the zero-length string if $a is the empty sequence. If any of the code points in $a is not a legal XML character, an error is raised

Returns the documents contained in the collections specified in the input sequence. The arguments are either collection pathes like '/db/shakespeare/plays' or XMLDB URIs like 'xmldb:exist://localhost:8081//db/shakespeare/plays'. Documents contained in subcollections are also included.

Accepts two or more xdt:anyAtomicType arguments and converts them to xs:string. Returns the xs:string that is the concatenation of the values of its arguments after conversion. If any of the arguments is the empty sequence, the argument is treated as the zero-length string.

Returns an xs:boolean indicating whether or not the value of $arg1 contains (at the beginning, at the end, or anywhere within) at least one sequence of collation units that provides a minimal match to the collation units in the value of $arg2, according to the default collation.

Returns an xs:boolean indicating whether or not the value of $arg1 contains (at the beginning, at the end, or anywhere within) at least one sequence of collation units that provides a minimal match to the collation units in the value of $arg2, according to the collation that is specified in $arg3.

Returns the number of items in the argument sequence.

Returns the xs:date (with timezone) that is current at some time during the evaluation of a query or transformation in which fn:current-date() is executed.

Returns the xs:dateTime (with timezone) that is current at some time during the evaluation of a query or transformation in which fn:current-dateTime() is executed.

Returns the xs:time (with timezone) that is current at some time during the evaluation of a query or transformation in which fn:current-time() is executed.

fn:data takes a sequence of items and returns a sequence of atomic values.

Creates an xs:dateTime from an xs:date and an xs:time.

Returns an xs:integer between 1 and 31, both inclusive, representing the day component in the localized value of $a.

Returns an xs:integer between 1 and 31, both inclusive, representing the day component in the localized value of $a.

Returns an xs:integer representing the days component in the canonical lexical representation of the value of $a. The result may be negative.

Returns true iff every item in $a is deep-equal to the item at the same position in $b, false otherwise. If both $a and $b are the empty sequence, returns true.

Returns true iff every item in $a is deep-equal to the item at the same position in $b, false otherwise. If both $a and $b are the empty sequence, returns true. Comparison collation is specified by $c

Returns the context's default collation.

Returns a sequence where duplicate values of $a, based on value equality, have been deleted.

Returns a sequence where duplicate values of $a, based on value equality specified by collation $b, have been deleted.

Returns the documents specified in the input sequence. The arguments are either document paths like '/db/shakespeare/plays/hamlet.xml' or XMLDB URIs like 'xmldb:exist://localhost:8081//db/shakespeare/plays/hamlet.xml' or standard URLs starting with http://, file://, etc.

Returns whether or not the document specified in the input sequence is available. The arguments are either document pathes like '/db/shakespeare/plays/hamlet.xml' or XMLDB URIs like 'xmldb:exist://localhost:8081//db/shakespeare/plays/hamlet.xml' or standard URLs, starting with http://, file://, etc.

Returns the document nodes of the documents whose DOCTYPE is given by $a.

Returns the documents specified in the input sequence. This function is specific to eXist and will be replaced with the corresponding fn:doc function. The arguments are either document pathes like '/db/shakespeare/plays/hamlet.xml' or XMLDB URIs like 'xmldb:exist://localhost:8081//db/shakespeare/plays/hamlet.xml'. If the input sequence is empty, the function will load all documents in the database.

Returns the absolute URI of the resource from which the document node $a was constructed, if none such URI exists returns the empty sequence. If $a is the empty sequence, returns the empty sequence.

Returns true if the value of the argument is the empty sequence, false otherwise.

Returns true if the string value of $b is a suffix of the string value of $a, false otherwise. If either $a or $b is the empty sequence, the empty sequence is returned.

Returns true if the string value of $b is a suffix of the string value of $a using collation $c, false otherwise. If either $a or $b is the empty sequence, the empty sequence is returned.

Indicates that an irrecoverable error has occurred. The script will terminate immediately with an exception.

Indicates that an irrecoverable error has occurred. The script will terminate immediately with an exception.

Indicates that an irrecoverable error has occurred. The script will terminate immediately with an exception.

Indicates that an irrecoverable error has occurred. The script will terminate immediately with an exception.

Replaces all nonprintable ASCII characters in the string value of $a by an escape sequence represented as a hexadecimal octet in the form %XX. If $a is the empty sequence, returns the zero-length string.

This function applies the URI escaping rules defined in section 2 of [RFC 2396] as amended by [RFC 2732], with one exception, to the string supplied as $a, which typically represents all or part of a URI. The effect of the function is to escape a set of identified characters in the string. Each such character is replaced in the string by an escape sequence, which is formed by encoding the character as a sequence of octets in UTF-8, and then representing each of these octets in the form %HH, where HH is the hexadecimal representation of the octet. $b indicates whether to escape reserved characters.

Returns the argument sequence if it contains exactly one item. Otherwise, raises an error.

If the argument is not the empty sequence, the function returns true; otherwise, the function returns false.

Always returns the boolean value false

Returns the largets number not greater than the value of $a.If $a is the empty sequence, returns the empty sequence.

Returns an xs:integer between 0 and 23, both inclusive, representing the value of the hours component in the localized value of $arg.

Returns an xs:integer representing the hours component in the canonical lexical representation of the value of $a. The result may be negative.

Returns an xs:integer between 0 and 23, both inclusive, representing the value of the hours component in the localized value of $arg.

Returns the sequence of element nodes that have an ID value matching the value of one or more of the IDREF values supplied in $a. If none is matching or $a is the empty sequence, returns the empty sequence.

Returns the sequence of element nodes that have an ID value matching the value of one or more of the IDREF values supplied in $a. If none is matching or $a is the empty sequence, returns the empty sequence.

Returns the sequence of element or attributes nodes with an IDREF value matching the value of one or more of the ID values supplied in $a. If none is matching or $a is the empty sequence, returns the empty sequence.

Returns the sequence of element or attributes nodes with an IDREF value matching the value of one or more of the ID values supplied in $a. If none is matching or $a is the empty sequence, returns the empty sequence.

Returns the value of the implicit timezone property from the dynamic context.

Returns the prefixes of the in-scope namespaces for $a. For namespaces that have a prefix, it returns the prefix as an xs:NCName. For the default namespace, which has no prefix, it returns the zero-length string.

Returns a sequence of positive integers giving the positions within the sequence $a of items that are equal to $b. If the value of $a is the empty sequence, or if no item in $a matches $b, then the empty sequence is returned.

Returns a sequence of positive integers giving the positions within the sequence $a of items that are equal to $b. If the value of $a is the empty sequence, or if no item in $a matches $b, then the empty sequence is returned. Values are compared according to the collation specified in $c.

Returns a new sequence constructed from the value of the target sequencewith the value of the sequence to insert inserted at the position specified.

Returns an URI as a xs:string if the value of $a is a valid IRI. Invald characters are escape sequence encoded before the conversion. If $a is the empty sequence, returns the zero-length string.

Returns the item in the first argument sequence that is located at the position specified by the second argument.

Returns true if the context items xml:lang attribute is equal to the value of $a, false otherwise.

Returns true if the context items xml:lang attribute is equal to the value of $a, false otherwise.

Returns the context size from the dynamic context. If the context item is undefined, an error is raised.

Returns the local part of the name of the context item as an xs:string that will either be the zero-length string or will have the lexical form of an xs:NCName.

Returns the local part of the name of the value of $a as an xs:string that will either be the zero-length string or will have the lexical form of an xs:NCName.

Returns an xs:NCName representing the local part of $a. If $a is the empty sequence, returns the empty sequence.

eXist-specific extension function. Tries to match each of the regular expression strings passed in $b and all following parameters against the keywords contained in the fulltext index. The keywords found are then compared to the node set in $a. Every node containing all of the keywords is copied to the result sequence.

eXist-specific extension function. Tries to match each of the regular expression strings passed in $b and all following parameters against the keywords contained in the fulltext index. The keywords found are then compared to the node set in $a. Every node containing any of the keywords is copied to the result sequence.

Returns true if the first argument string matches the regular expression specified by the second argument. This function is optimized internally if a range index of type xs:string is defined on the nodes passed to the first argument. Please note that - in contrast - with the specification - this method allows zero or more items for the string argument.

Returns true if the first argument string matches the regular expression specified by the second argument. This function is optimized internally if a range index of type xs:string is defined on the nodes passed to the first argument. Please note that - in contrast - with the specification - this method allows zero or more items for the string argument.

Selects an item from the input sequence $a whose value is greater than or equal to the value of every other item in the input sequence.

Selects an item from the input sequence $a whose value is greater than or equal to the value of every other item in the input sequence. The collation URI specified in $b will be used for string comparisons.

Selects an item from the input sequence $a whose value is less than or equal to the value of every other item in the input sequence.

Selects an item from the input sequence $a whose value is less than or equal to the value of every other item in the input sequence. The collation specified in $b is used for string comparisons.

Returns an xs:integer value between 0 to 59, both inclusive, representing the value of the minutes component in the localized value of $arg.

Returns an xs:integer representing the minutes component in the canonical lexical representation of the value of $a. The result may be negative.

Returns an xs:integer value between 0 to 59, both inclusive, representing the value of the minutes component in the localized value of $arg.

Returns an xs:integer between 1 and 12, both inclusive, representing the month component in the localized value of $a.

Returns an xs:integer between 1 and 12, both inclusive, representing the month component in the localized value of $a.

Returns an xs:integer representing the months component in the canonical lexical representation of the value of $a. The result may be negative.

Returns the name of a node, as an xs:string that is either the zero-length string, or has the lexical form of an xs:QName

Returns the name of a node, as an xs:string that is either the zero-length string, or has the lexical form of an xs:QName

Returns the namespace URI of the xs:QName of the context item. If the context item is in no namespace or is neither an element nor attribute node, returns the xs:anyURI equivalent to the zero-length string. Raises an error if the context item is undefined or not a node.

Returns the namespace URI of the xs:QName value of $a. If $a is in no namespace or is neither an element nor attribute node, returns the xs:anyURI eqvivalent to the zero-length string. Raises an error if the context item is undefined or not a node.

Returns the namespace URI of one of the in-scope namespaces for $b, identified by its namespace prefix. If $b has an in-scope namespace whose namespace prefix is equal to $a, it returns the namespace URI of that namespace. If $b is the zero-length string or the empty sequence, it returns the namespace URI of the default (unnamed) namespace. Otherwise, it returns the empty sequence.

Returns the namespace URI for $a. If $a is the empty sequence, returns the empty sequence.

Returns whether $a is nilled of not.

Returns an expanded-QName for node kinds that can have names. For other kinds of nodes it returns the empty sequence. If $a is the empty sequence, the empty sequence is returned.

Returns the value of the context item with whitespace normalized by stripping leading and trailing whitespace and replacing sequences of one or more whitespace character with a single space.

Returns the value of $a with whitespace normalized by stripping leading and trailing whitespace and replacing sequences of one or more whitespace character with a single space.If the value of $a is the empty sequence, returns the zero-length string. If no argument is supplied $a defaults to the string value of the context item.

Returns the value of $a normalized according to the normalization form NFC.

Returns the value of $a normalized according to the normalization criteria for a normalization form identified by the value of $b.

Returns true if the effective boolean value (ebv) is false, true otherwise.

Returns the value of the context item as a xs:double. If the context item cannot be converted to a xs:double, NaN is returned.

Returns the value of $a as a xs:double. If the value of $a is the empty sequence or cannot be converted to a xs:double, NaN is returned.

Returns the argument sequence if it contains one or more items. Otherwise, raises an error.

Returns the context position from the dynamic context.If the context item is undefined, raises an error.

Returns an xs:NCName representing the prefix of $a. If $a is the empty sequence, returns the empty sequence.

Returns a new sequence constructed from the value of the target sequencewith the item at the position specified removed.

The function returns the xs:string that is obtained by replacing all non-overlapping substrings of $a that match the given pattern $b with an occurrence of the $c replacement string.

The function returns the xs:string that is obtained by replacing all non-overlapping substrings of $a that match the given pattern $b with an occurrence of the $c replacement string.

Returns an xs:QName value (that is, an expanded-QName) by taking an xs:string that has the lexical form of an xs:QName (a string in the form "prefix:local-name" or "local-name") and resolving it using the in-scope namespaces for a given element.

The purpose of this function is to enable a relative URI $a to be resolved against the static context's base URI.

The purpose of this function is to enable a relative URI $a to be resolved against the absolute URI $b. If $a is the empty sequence, the empty sequence is returned.

Reverses the order of items in a sequence. If the argument is an emptysequence, the empty sequence is returned.

Returns the root of the tree to which the context node belongs. This will usually, but not necessarily, be a document node.

Returns the root of the tree to which $arg belongs. This will usually, but not necessarily, be a document node.

Returns the number with no fractional part that is closest to the value of $a. Always returns the number closest to +INF if there are two such numbers.

The first signature of this function produces the same result as the second signature with $b=0.

The value returned is the nearest (that is, numerically closest) numeric to $a that is a multiple of ten to the power of minus $b. If two such values are equally near (e.g. if the fractional part in $a is exactly .500...), returns the one whose least significant digit is even.

Returns an xs:decimal value between 0 and 60.999..., both inclusive, representing the seconds and fractional seconds in the localized value of $arg. Note that the value can be greater than 60 seconds to accommodate occasional leap seconds used to keep human time synchronized with the rotation of the planet.

Returns an xs:decimal representing the seconds component in the canonical lexical representation of the value of $a. The result may be negative

Returns an xs:decimal value between 0 and 60.999..., both inclusive, representing the seconds and fractional seconds in the localized value of $arg. Note that the value can be greater than 60 seconds to accommodate occasional leap seconds used to keep human time synchronized with the rotation of the planet.

Returns true if the string value of $b is a prefix of the string value of $a, false otherwise. If either $a or $b is the empty sequence, the empty sequence is returned.

Returns true if the string value of $b is a prefix of the string value of $a using collation $c, false otherwise. If either $a or $b is the empty sequence, the empty sequence is returned.

Returns the value of the base-uri property from the static context. If the base-uri property is undefined, the empty sequence is returned.

Returns the value of the context item as xs:string. If the context item is undefined, an error is raised.

Returns the value of $a as xs:string. If the value of $ is the empty sequence, the zero-length string is returned. If the context item of $a is undefined, an error is raised.

Returns a xs:string created by concatenating the members of the $a sequence using $b as a separator. If the value of $b is the zero-length string, then the members of $a are concatenated without a separator.

Returns an xs:string consisting of a number copies of the first argument concatenated together without any separators. The number of copies is specified by the second argument.

Returns the sequence of code points that constitute an xs:string. If $a is a zero-length string or the empty sequence, the empty sequence is returned.

Returns a subsequence of the values in the first argument sequence, starting at the position indicated by the value of the second argument and including the number of items indicated by the value of the optional thirdargument. If the third argument is missing, all items up to the end of the sequence are included.

Returns a subsequence of the values in the first argument sequence, starting at the position indicated by the value of the second argument and including the number of items indicated by the value of the optional thirdargument. If the third argument is missing, all items up to the end of the sequence are included.

Returns the portion of the value of $a beginning at the position indicated by the value of $b and continuing to the end of $a. The characters returned do not extend beyond the end of $a. If $b is zero or negative, only those characters in positions greater than zero are returned. If the value of $a is the empty sequence, the zero-length string is returned.

Returns the portion of the value of $a beginning at the position indicated by the value of $b and continuing for the number of characters indicated by the value of $c. The characters returned do not extend beyond the end of $a. If $b is zero or negative, only those characters in positions greater than zero are returned. If the value of $a is the empty sequence, the zero-length string is returned.

Returns the substring of the value of $a that follows the first occurrence of a sequence of the value of $b. If the value of $a or $b is the empty sequence it is interpreted as the zero-length string. If the value of $b is the zero-length string, the zero-length string is returned. If the value of $a does not contain a string that is equal to the value of $b, the zero-length string is returned.

Returns the substring of the value of $a that follows the first occurrence of a sequence of the value of $b in the collation $c. If the value of $a or $b is the empty sequence it is interpreted as the zero-length string. If the value of $b is the zero-length string, the zero-length string is returned. If the value of $a does not contain a string that is equal to the value of $b, the zero-length string is returned.

Returns the substring of the value of $a that precedes the first occurrence of a sequence of the value of $b. If the value of $a or $b is the empty sequence it is interpreted as the zero-length string. If the value of $b is the zero-length string, the zero-length string is returned. If the value of $a does not contain a string that is equal to the value of $b, the zero-length string is returned.

Returns the substring of the value of $a that precedes the first occurrence of a sequence of the value of $b in the collation $c. If the value of $a or $b is the empty sequence it is interpreted as the zero-length string. If the value of $b is the zero-length string, the zero-length string is returned. If the value of $a does not contain a string that is equal to the value of $b, the zero-length string is returned.

Returns a value obtained by adding together the values in $a. If the single-argument form of the function is used, then the value returned for an empty sequence is the xs:double value 0.0e0.

Returns a value obtained by adding together the values in $a. If the single-argument form of the function is used, then the value returned for an empty sequence is the xs:double value 0.0e0. If the two-argument form is used, then the value returned for an empty sequence is the value of the $b argument.

Returns an xs:integer representing the year in the localized value of $a. The value may be negative.

Returns the timezone component of $arg if any. If $arg has a timezone component, then the result is an xdt:dayTimeDuration that indicates deviation from UTC; its value may range from +14:00 to -14:00 hours, both inclusive. Otherwise, the result is the empty sequence.

Returns the timezone component of $arg if any. If $arg has a timezone component, then the result is an xdt:dayTimeDuration that indicates deviation from UTC; its value may range from +14:00 to -14:00 hours, both inclusive. Otherwise, the result is the empty sequence.

This function breaks the input string $a into a sequence of strings, treating any substring that matches pattern $b as a separator. The separators themselves are not returned.

This function breaks the input string $a into a sequence of strings, treating any substring that matches pattern $b as a separator. The separators themselves are not returned.

This function is intended to be used in debugging queries by providing a trace of their execution. The input $a is returned, unchanged, as the result of the function. In addition, the inputs $a, converted to an xs:string, and $b is directed to a trace data set in the eXist log files.

Returns the value of $a modified so that every character in the value of $a that occurs at some position N in the value of $b has been replaced by the character that occurs at position N in the value of $c. If the value of $a is the empty sequence, the zero-length string is returned.

Always returns the boolean value true

Takes a sequence as input and returns an arbitrary implementation dependent permutation of the input sequence. Currently, this has no effect in eXist, but it might be used for future optimizations.

Works like fn:collection(), but does not include documents found in sub-collections of the specified collections.

Returns an xs:integer representing the year in the localized value of $a. The value may be negative.

Returns an xs:integer representing the year in the localized value of $a. The value may be negative.

Returns an xs:integer representing the years component in the canonical lexical representation of the value of $a. The result may be negative.

Returns the argument sequence if it contains zero or one items. Otherwise, raises an error.

Returns the differences between XML documents

Check if a user is registered as database user. The function simply tries to read the database collection specified in the first parameter $a, using the supplied username in $b and password in $c. It returns true if the attempt succeeds, false otherwise.

Change properties of an existing user, you must have appropriate permissions to do this. $a is the username, $b is the password, $c is the sequence of group memberships, $d is the home collection. The username is mandatory but other values are optional, where if empty the existing value is used.

Sets the mode of the specified Collection. $a is the Collection path, $b is the mode (as xs:integer). PLEASE REMEMBER that 0755 is 7*64+5*8+5, NOT decimal 755.

Sets the mode of the specified Resource. $a is the collection path, $b is the resource name, $c is the mode (as xs:integer). PLEASE REMEMBER that 0755 is 7*64+5*8+5, NOT decimal 755.

Returns true as xs:boolean if there is a collection with the same name as the first argument as xs:string.

Returns true as xs:boolean if there is a collection with the same name as the first argument as xs:string.

Copy a collection $a to the collection $b. The collections can be specified either as a simple collection path or an XMLDB URI.

Copy a resource $c from the collection specified in $a to collection in $b. The collections can be either specified as a simple collection path or an XMLDB URI.

Create a new collection as a child of the collection specified in the first argument. The collection can be passed as a simple collection path or an XMLDB URI.The second argument specifies the name of the new collection. The function returns the path to the new collection as an xs:string or - if the collection could not be created - the empty sequence.

Create a new user in the database. Arguments are: username, password, group memberships and home collection.

Returns the creation date of a collection $a. The collection can be passed as a simple collection path or an XMLDB URI.

Returns the creation date of a resource $b in the collection specified by $a. The collection can be passed as a simple collection path or an XMLDB URI.

Decodes the string provided in $a such that any percent encoded octets will be translated to their decoded UTF-8 representation.

Decodes the URI provided in $a such that any percent encoded octets will be translated to their decoded UTF-8 representation.

Deletes an existing user in the database. Requires username. Does not delete the user's home collection.

Returns the documents specified in the input sequence. The arguments are either document pathes like '/db/shakespeare/plays/hamlet.xml' or XMLDB URIs like 'xmldb:exist://localhost:8081//db/shakespeare/plays/hamlet.xml'. If the input sequence is empty, the function will load all documents in the database.

Returns the name of the user that holds a write lock on the resource specified in $b in the collection $a. If no lock is in place, the empty sequence is returned. The collection can be passed as a simple collection path or an XMLDB URI.

Encodes the string provided in $a such that it will be a valid collection or resource path. Provides similar functionality to java's URLEncoder.encode() function, with some enhancements

Encodes the string provided in $a such that it will be a valid collection or resource path. Provides similar functionality to java's URLEncoder.encode() function, with some enhancements. Returns an xs:anyURI object representing a valid XmldbURI

Returns true if user exists. Requires username.

Returns a sequence of strings containing all the child collections of the collection specified in $a. The collection parameter can either be a simple collection path or an XMLDB URI.

Returns all child resources in the specified collection.

Returns the current user from the context of the xquery.

Returns the owner group of the collection $a. The collection can be passed as a simple collection path or an XMLDB URI.

Returns the owner group of a resource in the collection specified by $a. The collection can be passed as a simple collection path or an XMLDB URI.

Returns the MIME Type of the resource indicated in $a or an empty sequence otherwise.

Returns the owner of a collection. The collection can be passed as a simple collection path or an XMLDB URI.

Returns the owner of the specified resource $b in collection $a. The collection can be passed as a simple collection path or an XMLDB URI.

Returns the permissions assigned to the collection $a. The collection can be specified as a simple collection path or an XMLDB URI.

Returns the permissions assigned to the resource specified in $b which is a child of the collection $a. The collection can be specified as a simple collection path or an XMLDB URI.

Receives the sequence of groups the specified user is a member of.

Returns the home collection of the specified user or the empty sequence if no home collection is assigned to the user.

Returns true if user is an Admin. Requires username.

Returns the last-modification date of a resource, whose name is specified by $b, in the collection specified by $a. The collection can be passed as a simple collection path or an XMLDB URI.

Check if a user is registered as database user and change the user identity for the current XQuery script. The function simply tries to read the database collection specified in the first parameter $a, using the supplied username in $b and password in $c. Contrary to the authenticate function,login will set the current user for the xquery script to the authenticated user. It returns true if the attempt succeeds, false otherwise. If called from a HTTP contextthen the login is cached for the lifetime of the HTTP session and may be used for all XQueryscripts in that session.

Move a collection $a. The collection can be specified either as a simple collection path or an XMLDB URI.

Move a resource $c from the collection specified in $a to collection in $b. The collection can be either specified as a simple collection path or an XMLDB URI.

Format the resource or collection permissions passed as an integer value into a string. The returned string shows the permissions following the usual Unix conventions, i.e. all permissions set is returned as rwurwurwu, where the first three chars are for user permissions, followed by group and world. 'r' denotes read, 'w' write and 'u' update permissions

Register an XMLDB driver class with the XMLDB Database Manager. This is only required if you want to access a database instance different from the one that executes the XQuery.

Reindex collection $a. DBA only

Remove a collection $a. The collection can be specified either as a simple collection path or an XMLDB URI.

Remove a resource from the collection specified in $a. The collection can be either specified as a simple collection path or an XMLDB URI.

Rename a collection $a. The collection can be specified either as a simple collection path or an XMLDB URI.

Rename a resource $b in the collection specified in $a with name in $c. The collection can be either specified as a simple collection path or an XMLDB URI.

Sets the permissions of the specified collection. $a is the collection, which can be specified as a simple collection path or an XMLDB URI. $b specifies the user which will become the owner of the resource, $c the group. The final argument contains the permissions, specified as an xs:integer value. PLEASE REMEMBER that 0755 is 7*64+5*8+5, NOT decimal 755.

Sets the permissions of the specified resource. $a is the collection, which can be specified as a simple collection path or an XMLDB URI. $b denotes the resource tochange. $c specifies the user which will become the owner of the resource, $d the group. The final argument contains the permissions, specified as an xs:integer value. PLEASE REMEMBER that 0755 is 7*64+5*8+5, NOT decimal 755.

Returns the estimated size of a resource $b (in bytes) in the collection specified by $a. The estimation is based on the number of pages occupied by a resource. If the document is serialized back to a string, it's size may be different, as parts of the structural information are stored in compressed form. The collection can be passed as a simple collection path or an XMLDB URI.

Store a new resource into the database. The first argument denotes the collection where the resource should be stored. The collection can be either specified as a simple collection path or an XMLDB URI. The second argument is the name of the new resource. The third argument is either a node, an xs:string, a Java file object or an xs:anyURI. A node will be serialized to SAX. It becomes the root node of the new document. If the argument is of type xs:anyURI, the resource is loaded from that URI. The functions returns the path to the new document as an xs:string or - if the document could not be stored - the empty sequence.

Store a new resource into the database. The first argument denotes the collection where the resource should be stored. The collection can be either specified as a simple collection path or an XMLDB URI. The second argument is the name of the new resource. The third argument is either a node, an xs:string, a Java file object or an xs:anyURI. A node will be serialized to SAX. It becomes the root node of the new document. If the argument is of type xs:anyURI, the resource is loaded from that URI. The final argument $d is used to specify a mime-type. If the mime-type is something other than 'text/xml' or 'application/xml', the resource will be stored as a binary resource. The functions returns the path to the new document as an xs:string or - if the document could not be stored - the empty sequence.

Store new resources into the database. Resources are read from the server's file system, using file patterns. The first argument denotes the collection where resources should be stored. The collection can be either specified as a simple collection path or an XMLDB URI. The second argument is the directory in the file system wherefrom the files are read.The third argument is the file pattern. File pattern matching is based on code from Apache's Ant, thus following the same conventions. For example: *.xml matches any file ending with .xml in the current directory, **/*.xml matches files in any directory below the current one. The function returns a sequence of all document paths added to the db. These can be directly passed to fn:doc() to retrieve the document.

Store new resources into the database. Resources are read from the server's file system, using file patterns. The first argument denotes the collection where resources should be stored. The collection can be either specified as a simple collection path or an XMLDB URI. The second argument is the directory in the file system wherefrom the files are read.The third argument is the file pattern. File pattern matching is based on code from Apache's Ant, thus following the same conventions. For example: *.xml matches any file ending with .xml in the current directory, **/*.xml matches files in any directory below the current one. The fourth argument $d is used to specify a mime-type. If the mime-type is something other than 'text/xml' or 'application/xml', the resource will be stored as a binary resource.The function returns a sequence of all document paths added to the db. These can be directly passed to fn:doc() to retrieve the document.

Store new resources into the database. Resources are read from the server's file system, using file patterns. The first argument denotes the collection where resources should be stored. The collection can be either specified as a simple collection path or an XMLDB URI. The second argument is the directory in the file system wherefrom the files are read.The third argument is the file pattern. File pattern matching is based on code from Apache's Ant, thus following the same conventions. For example: *.xml matches any file ending with .xml in the current directory, **/*.xml matches files in any directory below the current one. The fourth argument $d is used to specify a mime-type. If the mime-type is something other than 'text/xml' or 'application/xml', the resource will be stored as a binary resource.If the final boolean argument is true(), the directory structure will be kept in the collection, otherwise all the matching resources, including the ones in sub-directories, will be stored in the collection given in the first argument flatly.The function returns a sequence of all document paths added to the db. These can be directly passed to fn:doc() to retrieve the document.

Process an XUpdate request against a collection. The first argument specifies the collection as a simple collection path or an XMLDB URI. The second argument specifies the XUpdate modifications to be processed. Modifications are passed in a document conforming to the XUpdate specification. The function returns the number of modifications caused by the XUpdate.

Works like fn:collection(), but does not include documents found in sub-collections of the specified collections.

Remove all cached grammers.

Pre parse grammars specified by $a and add to grammar cache. Only for XML schemas (.xsd).

Show all cached grammars.

Validate document specified by $a. $a is of type xs:anyURI, or a node (element or returned by fn:doc()). The grammar files (DTD, XML Schema) are resolved using the global catalog file(s).

Validate document specified by $a using $b. $a is of type xs:anyURI, or a node (element or returned by fn:doc()). $b can point to an OASIS catalog file (.xml), a collection (path ends with '/') or a grammar document. Supported grammar documents extensions are ".dtd" ".xsd" ".rng" ".rnc" ".sch" and ".nvdl".

Validate document specified by $a. $a is of type xs:anyURI, or a node (element or returned by fn:doc()). The grammar files (DTD, XML Schema) are resolved using the global catalog file(s). A simple report is returned.

Validate document specified by $a using $b. $a is of type xs:anyURI, or a node (element or returned by fn:doc()). $b can point to an OASIS catalog file (.xml), a collection (path ends with '/') or a grammar document. Supported grammar documents extensions are ".dtd" ".xsd" ".rng" ".rnc" ".sch" and ".nvdl". A simple report is returned.

Retrieves the binary resource identified by $a and returns its contents as a value of type xs:base64Binary. An empty sequence is returned if the resource could not be found or $a was empty.

Checks if the binary resource identified by $a is available.

Returns the contents of a binary resource as an xs:string value. The binary data is transformed into a Java string using the encoding specified in the optional second argument or UTF-8.

Returns the contents of a binary resource as an xs:string value. The binary data is transformed into a Java string using the encoding specified in the optional second argument or UTF-8.

Invokes a first-class function reference created by util:function. The function to be called is passed as the first argument. All remaining arguments are forwarded to the called function.

This function corresponds to a try-catch statement in Java. The code block in $b will be put inside a try-catch statement. If an exception is thrown while executing $b, the function checks the name of the exception and calls $c if it matches one of the fully qualified Java class names specified in $a. A value of "*" in $a will catch all java exceptions

Returns a sequence of strings containing all collation locales that might be specified in the '?lang=' parameter of a collation URI.

Returns the name of the collection from a passed node or path string. If the argument is a node, the function returns the name of the collection to which the node's document belongs. If the argument is a string, it is interpreted as path to a resource and the function returns the computed parent collection path for this resource.

Dynamically evaluates the XPath/XQuery expression specified in $a within the current instance of the query engine.

Dynamically declares a namespace/prefix mapping for the current context. The prefix is specified in $a, the namespace URI in $b.

Dynamically declares a serialization option as with 'declare option'.

Performs a Deep Clone of the Parameter $a

Describes a built-in function. Returns an element describing the function signature.

Disable profiling output within the query.

Returns the document nodes of the documents whose DOCTYPE is given by $a.

Returns the internal integer id of a document. The argument can either be a node or a string path pointing to a resource in the database. If the resource does not exist or the node does not belong to a stored document, the empty sequence is returned.

Returns the name of a document (excluding the collection path). The argument can either be a node or a string path pointing to a resource in the database. If the resource does not exist or the node does not belong to a stored document, the empty sequence is returned.

Returns the version of eXist running this query.

Enable profiling output within the query. The profiling starts with this function call and will end with a call to 'disable-profiling'. Argument $a specifies the verbosity. All other profiling options can be configured via the 'declare option exist:profiling ...' in the query prolog.

Dynamically evaluates an XPath/XQuery expression. If the first argument is of type xs:string, the function tries to execute this string as the query. If the first argument is of type xs:anyURI, the function will try to load the query from the resource to which the URI resolves. If the URI has no scheme, it is assumed that the query is stored in the db and the URI is interpreted as a database path. This is the same as calling util:eval(xs:anyURI('xmldb:exist:///db/test/test.xq')). The query inherits the current execution context, i.e. all namespace declarations and variable declarations are visible from within the inner expression. The function returns an empty sequence if a whitespace string is passed.

Dynamically evaluates an XPath/XQuery expression. If the first argument is of type xs:string, the function tries to execute this string as the query. If the first argument is of type xs:anyURI, the function will try to load the query from the resource to which the URI resolves. If the URI has no scheme, it is assumed that the query is stored in the db and the URI is interpreted as a database path. This is the same as calling util:eval(xs:anyURI('xmldb:exist:///db/test/test.xq')). The query inherits the current execution context, i.e. all namespace declarations and variable declarations are visible from within the inner expression. The function returns an empty sequence if a whitespace string is passed. The third argument specifies if the compiled query expression should be cached. The cached query will be globally available within the db instance.

Dynamically evaluates an XPath/XQuery expression. If the first argument is of type xs:string, the function tries to execute this string as the query. If the first argument is of type xs:anyURI, the function will try to load the query from the resource to which the URI resolves. If the URI has no scheme, it is assumed that the query is stored in the db and the URI is interpreted as a database path. This is the same as calling util:eval(xs:anyURI('xmldb:exist:///db/test/test.xq')). The query inherits the first argument's context, i.e. all namespace declarations and variable declarations are visible from within the inner expression. The function returns an empty sequence if a whitespace string is passed.

Dynamically evaluates an XPath/XQuery expression. If the first argument is of type xs:string, the function tries to execute this string as the query. If the first argument is of type xs:anyURI, the function will try to load the query from the resource to which the URI resolves. If the URI has no scheme, it is assumed that the query is stored in the db and the URI is interpreted as a database path. This is the same as calling util:eval(xs:anyURI('xmldb:exist:///db/test/test.xq')). The query inherits the context described by the XML fragment in the second parameter. It should have the format: <static-context> <output-size-limit value="-1"> <unbind-namespace uri="http://exist.sourceforge.net/NS/exist"/> <current-dateTime value="dateTime"/> <implicit-timezone value="duration"/> <variable name="qname">variable value</variable> </static-context>. The third