[role="xpack"]
[testenv="basic"]
[[sql-syntax-show-functions]]
=== SHOW FUNCTIONS

.Synopsis
[source, sql]
----
SHOW FUNCTIONS [ LIKE? pattern<1>? ]?
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<1> SQL match pattern

.Description

List all the SQL functions and their type. The `LIKE` clause can be used to restrict the list of names to the given pattern.

["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showFunctions]
----

The list of functions returned can be customized based on the pattern.

It can be an exact match:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showFunctionsLikeExact]
----

A wildcard for exactly one character:
["source","sql",subs="attributes,callouts,macros"]
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include-tagged::{sql-specs}/docs.csv-spec[showFunctionsLikeChar]
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A wildcard matching zero or more characters:
["source","sql",subs="attributes,callouts,macros"]
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include-tagged::{sql-specs}/docs.csv-spec[showFunctionsLikeWildcard]
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Or of course, a variation of the above:
["source","sql",subs="attributes,callouts,macros"]
----
include-tagged::{sql-specs}/docs.csv-spec[showFunctionsWithPattern]
----