ReferenceSQLDDL CommandsUser-Defined FunctionALTER FUNCTION本页总览ALTER FUNCTIONSyntaxCREATE FUNCTION <name> AS ([ argname ]) -> '<function_definition>'ExamplesALTER FUNCTION a_plus_3 AS (a) -> a+6;SELECT a_plus_3(2);+---------+| (2 + 6) |+---------+| 8 |+---------+