MySQL Stored routines (procedures and functions)
Parameters
| Parameter | Details |
|---|---|
| RETURNS | Specifies the data type that can be returned from a function. |
| RETURN | Actual variable or value following the RETURN syntax is what is returned to where the function was called from. |
Remarks
A stored routine is either a procedure or a function.
A procedure is invoked using a CALL statement and can only pass back values using output variables.
A function can be called from inside a statement just like any other function and can return a scalar value.
