MySQL Dump and Restore,Stored Procedures and Triggers 什么是存储过程? 存储过程,是被存储在数据库中的目录,并且可以由一个程序、一个触发器或者甚至一个存储过程以后调用的声明的SQL代码段。 什么是触发器? 触发器是事件驱动的专属程序,它们被存储下来,由数据库管理。触发器是发起一个事件后触发一个SQL过程(像...
MySQL 9.1 Reference Manual / ... / Stored Procedures, Functions, Triggers, and LAST_INSERT_ID() 27.2.4 Stored Procedures, Functions, Triggers, and LAST_INSERT_ID() Within the body of a stored routine (procedure or function) or a trigger, the value of LAST_INSERT_ID() changes the ...
If a stored procedure executes statements that change the value ofLAST_INSERT_ID(), the changed value is seen by statements that follow the procedure call. For stored functions and triggers that change the value, the value is restored when the function or trigger ends, so following statements...
those who made their livings using big commercial databases like Oracle and DB2 pointed out that MySQL was a nice, fast little database but lacked important feature like stored procedures, transactions, and triggers. As of
I've chosen to post this in stored procedures because I believe this is what I need to solve my problem. I'm new to SQL and looking for help. I want to create a record in one of my tables; barn, pen or incubator and have a record created in my mapping table, location, then put...
Bug #6796 Triggers and stored procedures allow meaningless AVG() Submitted: 24 Nov 2004 14:27Modified: 29 Sep 2008 20:55 Reporter: Peter Gulutzan Email Updates: Status: Can't repeat Impact on me: None Category: MySQL ServerSeverity: S3 (Non-critical) Version: 5.0.2-alpha-debugOS: ...
In MySQL, a DELIMITER command changes the delimiter from its default value of semicolon (;) to another string like //. This is really useful when creating stored procedures or triggers that contain multiple SQL statements, which may also include semicolons. Advertisement - This is a modal ...
Stored Procedures and Triggers Exercises with solutions [20 exercises with solution] 1. Create a Stored Procedure to Insert a New Employee Write a MySQL query to create a stored procedure that inserts a new employee into the Employees table. ...
Suggested fix: My hope would be that mysqldump would not rely on SET FOREIGN_KEY_CHECKS=0 and the like, rather, it would discover dependencies first, then provide output so that the most dependent tables, data, functions, procedures and triggers would be handled before items that were less ...
Triggers and stored procedures are implemented in MySQL 5. If you cannot use MySQL 5 you must move your stored procedure logic to client-side code. Mike Hillyer, Technical Writer MySQL AB, www.mysql.com Office: +1 403-380-6535 Blog: http://www.openwin.org/mike "The Open Source...