摘要： http://www.mysqltutorial.org/mysql-signal-resignal/ Summary: in this tutorial, you will learn how to use SIGNAL and RESIGNAL statements to raise error 阅读全文

摘要： http://blog.csdn.net/crazylaa/article/details/5368421 http://blog.csdn.net/crazylaa/article/details/5368421 有时候，不希望存储过程抛出错误中止执行，而是希望返回一个错误码。 MySQL 支持异 阅读全文