随便胡乱说几点，大家补充一下。
1。预编译，已优化，效率较高。避免了SQL语句在网络中传输然后再解释的低效率。
2。如果公司有专门的DBA，写存储过程可以他来做，程序员只要按他提供的接口调用就好了。这样分开来做，比较清楚。
3。修改方便。嵌入在程序中的SQL语句修改比较麻烦，而且经常不能肯定该改的是不是都改了。SQLSERVER上的存储过程修改就比较方便，直接改掉该存储过程，调用它的程序基本不用动，除非改动比较大（如改了传入的参数，返回的数据等）。
4。会安全一点。不会有SQL语句注入问题。
当然，也有缺点。特别是业务逻辑比较复杂时，全用存储过程来写，估计也累的够呛。
出处：laifangsong's blog
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