SHOW FUNCTIONS
Shows the list of supported functions currently, including builtin scalar/aggregate functions and user defined functions.
Syntax
SHOW FUNCTIONS [LIKE 'pattern' | WHERE expr]
Example
mysql> SHOW FUNCTIONS;
+-------------------------+------------+--------------+-------------------+---------------------------+
| name | is_builtin | is_aggregate | definition | description |
+-------------------------+------------+--------------+-------------------+---------------------------+
| != | 1 | 0 | | |
| % | 1 | 0 | | |
| * | 1 | 0 | | |
| + | 1 | 0 | | |
| - | 1 | 0 | | |
| / | 1 | 0 | | |
| < | 1 | 0 | | |
| <= | 1 | 0 | | |
| <> | 1 | 0 | | |
| = | 1 | 0 | | |
+-------------------------+------------+--------------+-------------------+---------------------------+
Showing the functions begin with "today"
:
mysql> SHOW FUNCTIONS LIKE 'today%';
+--------------+------------+--------------+------------+-------------+
| name | is_builtin | is_aggregate | definition | description |
+--------------+------------+--------------+------------+-------------+
| today | 1 | 0 | | |
| todayofmonth | 1 | 0 | | |
| todayofweek | 1 | 0 | | |
| todayofyear | 1 | 0 | | |
+--------------+------------+--------------+------------+-------------+
Showing the functions begin with "today"
with WHERE
:
mysql> SHOW FUNCTIONS WHERE name LIKE 'today%';
+--------------+------------+--------------+------------+-------------+
| name | is_builtin | is_aggregate | definition | description |
+--------------+------------+--------------+------------+-------------+
| today | 1 | 0 | | |
| todayofmonth | 1 | 0 | | |
| todayofweek | 1 | 0 | | |
| todayofyear | 1 | 0 | | |
+--------------+------------+--------------+------------+-------------+