MySQL中的存储过程与触发器

Question

在MySQL世界中，STORED PROCEDURES如何与TRIGGERS不同？

Answer 1

Stored procedures are stored as precompilated code (stored routine) and called by the programmer wherever it wants to fire. Stored procedure can return value(s). About procedures and functions.

Triggers are named database objects fired automatically when insert, delete, update (or other event) occurred, there can be no explicit invocation. Trigger can not return any data. About triggers.

You can use procedures in trigger's code.

Answer 2

A trigger is a type of stored procedure, but it runs based off of an event on a table instead of just being a set of instructions to be executed repeatedly.

A trigger is defined to activate when an INSERT, DELETE, or UPDATE statement executes for the associated table.

A stored procedure is a group of Transact-SQL statements compiled into a single execution plan.