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MySQL创建函数时报错'ERROR 1336 (0A000): Dynamic SQL'怎么办

发表于：2024-09-21 作者：千家信息网编辑

千家信息网最后更新 2024年09月21日，这篇文章主要介绍MySQL创建函数时报错'ERROR 1336 (0A000): Dynamic SQL'怎么办，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！创建函数时报错my

千家信息网最后更新 2024年09月21日MySQL创建函数时报错'ERROR 1336 (0A000): Dynamic SQL'怎么办

这篇文章主要介绍MySQL创建函数时报错'ERROR 1336 (0A000): Dynamic SQL'怎么办，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！

创建函数时报错
mysql> delimiter $$
mysql> CREATE FUNCTION is_SQLScriptReferenceExist (THE_REFERENCE VARCHAR(75), THE_VERSION_LEVEL_TABLE_NAME VARCHAR(75)) RETURNS INTEGER DETERMINISTIC
-> BEGIN
-> DECLARE THE_REFERENCE_LABEL VARCHAR(80);
-> DECLARE CONTINUE HANDLER FOR NOT FOUND
-> BEGIN
-> RETURN 0;
-> END;
-> SELECT concat('select c_reference_label INTO THE_REFERENCE_LABEL from ', THE_VERSION_LEVEL_TABLE_NAME, ' where C_REFERENCE_LABEL = ''', THE_REFERENCE, '''') INTO @stmt;
-> PREPARE STMT FROM @stmt;
-> EXECUTE STMT;
-> /* select c_reference_label into THE_REFERENCE_LABEL from THE_VERSION_LEVEL_TABLE_NAME where C_REFERENCE_LABEL = THE_REFERENCE; */
-> RETURN 1;
-> END$$
ERROR 1336 (0A000): Dynamic SQL is not allowed in stored function or trigger
mysql> delimiter ;

报错原因：
MySQL函数和触发器中不允许使用动态函数

可以改写成存储过程
mysql> delimiter $$
mysql> CREATE PROCEDURE is_SQLScriptReferenceExist (IN THE_REFERENCE VARCHAR(75), IN THE_VERSION_LEVEL_TABLE_NAME VARCHAR(75), OUT V_RET INT(2))
-> BEGIN
-> DECLARE THE_REFERENCE_LABEL VARCHAR(80);
-> DECLARE CONTINUE HANDLER FOR NOT FOUND
-> BEGIN
-> SET V_RET = 0;
-> END;
-> SELECT concat('select c_reference_label INTO THE_REFERENCE_LABEL from ', THE_VERSION_LEVEL_TABLE_NAME, ' where C_REFERENCE_LABEL = ''', THE_REFERENCE, '''') INTO @stmt;
-> PREPARE STMT FROM @stmt;
-> EXECUTE STMT;
-> /* select c_reference_label into THE_REFERENCE_LABEL from THE_VERSION_LEVEL_TABLE_NAME where C_REFERENCE_LABEL = THE_REFERENCE; */
-> SET V_RET = 1;
-> END$$
Query OK, 0 rows affected (0.00 sec)

mysql> delimiter ;