I have a sample stored procedure sp_get_employee_leave with: SELECT employee_leave_day FROM employees WHERE employee_id = param_employee_id; I want to know how can I call sp_get_employee_leave to get the data for all employees using a loop.. something like: For (i=0; i<=rows...
为了控制删除的数量,我们可以添加一个参数来指定每次删除的记录数。 DELIMITER//CREATEPROCEDUREBatchDelete(INbatch_sizeINT)BEGINDECLARErows_affectedINTDEFAULT1;WHILErows_affected>0DODELETEFROMtest_recordsORDERBYcreated_atLIMITbatch_size;SETrows_affected=ROW_COUNT();ENDWHILE;END//DELIMITER; 1. 2. 3. 4. ...
mysql存储过程repeat循环多循环一次 repeat 由于repeat循环相当于do whlie的形式,先执行再判断条件是否满足,从而导致了会多循环一次,解决方法如下 仙士可 2019/12/17 2.7K0 MySQL存储过程注意事项和利用存储过程实现复杂分区 云数据库 MySQL MySQL 5.0 版本开始支持存储过程。存储过程(Stored Procedure)是一种在数据库中...
Within a stored function, RETURN can also be used, which exits the function entirely. Neglecting to include a loop-termination statement results in an infinite loop. A LOOP statement can be labeled. For the rules regarding label use, see Section 15.6.2, “Statement Labels”. ...
As a stored procedures fan, I use MySQL stored procedures to get some of my DBA tasks accomplished. To make it simple, I have a template stored procedure that can be customized for several purposes. The template syntax contains cursor, continue handler, loop, if condition and prepared statemen...
我们要注意的是,如果不初始化x变量的值,那么它默认值为NULL。 因此,WHILE循环语句中的条件始终为TRUE,并且我们将有一个不确定的循环,这是不可预料的。废话不多说,我们先来调用test_mysql_while_loopstored存储过程: CALLtest_mysql_while_loop(); AI代码助手复制代码...
In this tutorial, you have learned various MySQL loop statements to execute a block of code repeatedly based on a condition. Related Tutorials MySQL IF Statement Getting Started with MySQL Stored Procedures MySQL Stored Procedure Variables Introduction to MySQL Stored Procedures ...
标签: MySQL 收藏 Summary: in this tutorial, you will learn how to use various loop statements in MySQL including WHILE, REPEAT and LOOP to run a block of code repeatedly based on a condition. MySQL provides loop statements that allow you to execute a block of SQL code repeatedly based on...
Bug #75879 memory consumed quickly while executing loop in procedure Submitted: 12 Feb 2015 17:04Modified: 27 Apr 2015 14:25 Reporter: zhai weixiang (OCA) Email Updates: Status: Closed Impact on me: None Category: MySQL Utilities: Binlog EventsSeverity: S2 (Serious) Version: 5.6,5.7OS:...
hi, i want to know if it is possible to loop a query with a different value in the where clause with stored procedures. My scenario is as follows: storage is calculated on a order by multiplying a weight and a rate per day. first the procedure checks to see when the order was ...