MySQL中创建存储过程出现报错如何解决
发布时间：2022-02-10 13:18:54 所属栏目：MySql教程 来源：互联网
导读：这期内容当中小编将会给大家带来有关MySQL中创建存储过程出现报错如何解决，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。 mysql delimiter $$ mysql CREATE FUNCTION check_rollbackPatch(THE_REFERNCE_LABEL VARCHAR
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这期内容当中小编将会给大家带来有关MySQL中创建存储过程出现报错如何解决，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。 mysql> delimiter $$ mysql> CREATE FUNCTION check_rollbackPatch(THE_REFERNCE_LABEL VARCHAR(75), THE_COLUMN_NAME VARCHAR(75), THE_INSTALL_VERSION VARCHAR(75), THE_VERSION_LEVEL_TABLE_NAME VARCHAR(75)) -> RETURNS INTEGER DETERMINISTIC -> BEGIN -> DECLARE INSTALL_VERSION VARCHAR(80) DEFAULT NULL; -> DECLARE REFERENCE_LABEL VARCHAR(80) DEFAULT NULL; -> DECLARE THE_QUERY VARCHAR(500) DEFAULT NULL; -> DECLARE too_many_rows CONDITION FOR 1172; -> DECLARE CONTINUE HANDLER FOR too_many_rows -> BEGIN -> SELECT concat('[INFO] Several ', THE_REFERNCE_LABEL, ' references found.'); -> RETURN 0; -> END; -> DECLARE CONTINUE HANDLER FOR NOT FOUND -> BEGIN -> /*SELECT concat('[INFO] ', THE_REFERNCE_LABEL, ' reference not found.');*/ -> RETURN 1; -> END; -> SELECT concat('', THE_COLUMN_NAME, ', C_INSTALL_VERSION') INTO @V_PART1; -> SELECT concat(THE_COLUMN_NAME, '=''', THE_REFERNCE_LABEL, ''' and C_INSTALL_VERSION=''', THE_INSTALL_VERSION, '''') INTO @V_PART2; -> SELECT format_selectQuery(THE_VERSION_LEVEL_TABLE_NAME, @V_PART1, @V_PART2) INTO THE_QUERY; -> /*SELECT concat('[INFO] The query to execute is [', THE_QUERY, ']');*/ -> /*EXECUTE IMMEDIATE THE_QUERY into REFERENCE_LABEL, INSTALL_VERSION;*/ -> /*SELECT concat('[INFO] ', THE_REFERNCE_LABEL, ' reference found');*/ -> RETURN 0; -> END $$ ERROR 1415 (0A000): Not allowed to return a result set from a function mysql> delimiter ; 报错原因： 在MySQL的function里，不能使用SELECT语句来返回结果集，会报错。 注释掉后，报错消失 mysql> delimiter $$ mysql> CREATE FUNCTION check_rollbackPatch(THE_REFERNCE_LABEL VARCHAR(75), THE_COLUMN_NAME VARCHAR(75), THE_INSTALL_VERSION VARCHAR(75), THE_VERSION_LEVEL_TABLE_NAME VARCHAR(75)) -> RETURNS INTEGER DETERMINISTIC -> BEGIN -> DECLARE INSTALL_VERSION VARCHAR(80) DEFAULT NULL; -> DECLARE REFERENCE_LABEL VARCHAR(80) DEFAULT NULL; -> DECLARE THE_QUERY VARCHAR(500) DEFAULT NULL; -> DECLARE too_many_rows CONDITION FOR 1172; -> DECLARE CONTINUE HANDLER FOR too_many_rows -> BEGIN -> /*SELECT concat('[INFO] Several ', THE_REFERNCE_LABEL, ' references found.');*/ -> RETURN 0; -> END; -> DECLARE CONTINUE HANDLER FOR NOT FOUND -> BEGIN -> /*SELECT concat('[INFO] ', THE_REFERNCE_LABEL, ' reference not found.');*/ -> RETURN 1; -> END; -> SELECT concat('', THE_COLUMN_NAME, ', C_INSTALL_VERSION') INTO @V_PART1; -> SELECT concat(THE_COLUMN_NAME, '=''', THE_REFERNCE_LABEL, ''' and C_INSTALL_VERSION=''', THE_INSTALL_VERSION, '''') INTO @V_PART2; -> SELECT format_selectQuery(THE_VERSION_LEVEL_TABLE_NAME, @V_PART1, @V_PART2) INTO THE_QUERY; -> /*SELECT concat('[INFO] The query to execute is [', THE_QUERY, ']');*/ -> /*EXECUTE IMMEDIATE THE_QUERY into REFERENCE_LABEL, INSTALL_VERSION;*/ -> /*SELECT concat('[INFO] ', THE_REFERNCE_LABEL, ' reference found');*/ -> RETURN 0; -> END $$ Query OK, 0 rows affected (0.00 sec) mysql> delimiter ; 上述就是小编为大家分享的MySQL中创建存储过程出现报错如何解决了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。 （编辑：武汉站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
