好像MySQL当前最新版本(5.1)还不支持嵌套的Stored Function,仅支持嵌套的Stored Procedure Trigger Trigger是数据库中的事件触发,当前MySQL的实现是对特定table的DML语句(INSERT/UPDATE/DELETE)调用时触发 CREATE [DEFINER={user|CURRENT_USER}] TRIGGER trigger_name {BEFORE|AFTER} {INSERT|UPDATE|DELETE} ON table_nam...
1,必须要一个RETURNS语句来定义返回值类型 2,不能指定参数的IN、OUT或INOUT修饰符,所有参数隐式的为IN 3,Function体必须包含RETURN语句来终结Function执行并返回指定的结果给调用者 Example: Java代码 CREATE FUNCTION cus_status(in_status CHAR(1)) RETURNS VARCHAR(20) BEGIN DECLARE long_status VARCHAR(20); ...
Using MySQL 5.1.30-community, I get this problem with stored function and transactions. CREATE FUNCTION function1() RETURNS INT SQL SECURITY INVOKER BEGIN START TRANSACTION; COMMIT; RETURN 1; END => 1 Explicit or implicit commit is not allowed in stored function or trigger. Function: function...
All of the stored functions shown in this section take string representations of GTID sets as arguments, so GTID sets must always be quoted when used with them. This function returns nonzero (true) if two GTID sets are the same set, even if they are not formatted in the same way: ...
19.1.3.8 Stored Function Examples to Manipulate GTIDs This section provides examples of stored functions (see Chapter 27, Stored Objects) which you can create using some of the built-in functions provided by MySQL for use with GTID-based replication, listed here: ...
Bug #111526STR_TO_DATE fails in MySQL stored function with error instead of returning NULL Submitted:21 Jun 2023 19:02Modified:22 Jun 2023 13:09 Reporter:Lewis GrahamEmail Updates: Status:VerifiedImpact on me: None Category:MySQL Server: Stored RoutinesSeverity:S3 (Non-critical) ...
Description:If top level query table is empty a strored function in update t2 set a=1 where a=bug() still executes and leaves possible side effects. Another side of the problem is in that stored functions were treated as constants which could cause not-determinism in statements execution.How...
https://code.tutsplus.com/articles/an-introduction-to-stored-procedures-in-mysql-5--net-17843 MySQL 5 introduced a plethora of new features - stored procedures being one of the most significant. In this tutorial, we will focus on what they are, and how they can make your life easier. ...
mysql没有FOR循环 循环内控制语句: ... [iteratelabn |leavelabn] ... return:退出存储函数并返回值,不可用于其他存储对象奥 loop ... end loop repeat ... until ? end repeat while ? do ... end while Server-Side CursorsDECLAREcursor_nameCURSOR FORselect_statement ...
"Explicit or implicit commit is not allowed in stored function or trigger" The above stored procedure definition is only a truncated one. My original stored procedure which has some more lines in addition to above is as follows +++++++++++++++++++++++++++++++++++ DELIMITER $$ DROP...