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https://dev.mysql.com/doc/refman/5.7/en/audit-log-reference.html
Each audit log function returns a string that indicates whether the operation succeeded. Audit log functions treat string arguments as binary strings (which means they do not distinguish lettercase), and string return values are binary strings. If ...Audit Log Functions This section describes, for each audit log function, its purpose, calling sequence, and return ...
https://dev.mysql.com/doc/refman/5.7/en/spatial-geohash-functions.html
Geohash is a system for encoding latitude and longitude coordinates of arbitrary precision into a text string. Geohash values are strings that contain only characters chosen from "0123456789bcdefghjkmnpqrstuvwxyz". The functions in this section ...
https://dev.mysql.com/doc/refman/5.7/en/flow-control-functions.html
Note There is also an IF statement, which differs from the IF() function described here. If only one of expr2 or expr3 is explicitly NULL, the result type of the IF() function is the type of the non-NULL expression. The default return type of IF() ...The second syntax returns the result for the first condition that is ...
https://dev.mysql.com/doc/refman/5.7/en/json-attribute-functions.html
The functions in this section return attributes of JSON values. An error occurs if the argument is not a valid JSON document. An empty array, empty object, or scalar value has depth 1. A nonempty array containing only elements of depth 1 or ...
https://dev.mysql.com/doc/refman/5.7/en/gis-general-property-functions.html
The functions listed in this section do not restrict their argument and accept a geometry value of any type. mysql> SELECT ST_Dimension(ST_GeomFromText('LineString(1 1,2 2)')); +------------------------------------------------------+ | ...
https://dev.mysql.com/doc/refman/5.7/en/gis-polygon-property-functions.html
Functions in this section return properties of Polygon or MultiPolygon values. This function processes geometry collections by computing the centroid point for components of highest dimension in the collection. Such components are extracted and ...
https://dev.mysql.com/doc/refman/5.7/en/show-create-function.html
SHOW CREATE FUNCTION func_name This statement is similar to SHOW CREATE PROCEDURE but for stored functions.
https://dev.mysql.com/doc/refman/5.7/en/show-function-code.html
SHOW FUNCTION CODE func_name This statement is similar to SHOW PROCEDURE CODE but for stored functions.
https://dev.mysql.com/doc/refman/5.7/en/show-function-status.html
SHOW FUNCTION STATUS [LIKE 'pattern' | WHERE expr] This statement is similar to SHOW PROCEDURE STATUS but for stored functions.
https://dev.mysql.com/doc/refman/5.7/en/spatial-function-reference.html
The following table lists each spatial function and provides a short description of each one.