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06 2021 档案

摘要:select MAX(CAST(userNo as SIGNED INTEGER)) from userInfo ; 或者 select MAX(CAST(userNo as UNSIGNED INTEGER)) from userInfo ; ————varchar 转 int cast(id a 阅读全文
posted @ 2021-06-08 10:06 5572 阅读(288) 评论(0) 推荐(0)