这个问题是在SQL SERVER 2005 升级到SQL SERVER 2014的测试过程中一同事发现的。我觉得有点意思，遂稍微修改一下脚本展示出来，本来想构造这样的一个案例来演示，但是畏惧麻烦，遂直接贴上原表，希望 Leader不要叼我（当然个人觉得真没啥，两张表名而已，真泄露不了啥信息）。脚本如下所示，非常简单的一段SQL语句，我将其分为S...

文章 2015-12-18 来自：开发者社区

SQL SERVER 2014 下IF EXITS 居然引起执行计划变更的案例分享

原文:SQL SERVER 2014 下IF EXITS 居然引起执行计划变更的案例分享这个问题是在SQL SERVER 2005 升级到SQL SERVER 2014的测试过程中一同事发现的。我觉得有点意思，遂稍微修改一下脚本展示出来，本来想构造这样的一个案例来演示，但是畏惧麻烦，遂直接贴上原表，希望Leader不要叼我（当然个人觉得真没啥，两张表名而已，真泄露不了啥信息）。 &...

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