首先来模拟下最初的sql语句:explain select* from refund force
mysql导入sql文件时datetime报错
mysql索引
timestamp('2019-1-01 00:00:00')groupbymonorderbymon这个sql美观多
15:21:58;把 现在 - joindata > 4年的pastdue设置为1;sql如下:update
Tips:Do Not Provide
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