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alter table pic_all add ( `expand1` varchar(255), `expand2` varchar(255), `expand3` varchar(255) );    阅读全文
posted @ 2018-11-23 15:51
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UPDATE province_yunnan_salary s1 JOIN province_guangdong_salary s2 ON s1.user_name= s2.user_name SET s1.salary= s2.salary WHERE s1.user_name = '周一一'    阅读全文
posted @ 2018-11-23 15:43
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