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30 2015年12月

Mysql字符串截去后几位

发布于：14时32分 | 来源：湛蓝天空 | 编辑：湛蓝

sql截去字段中后三位以_yz结尾的记录： update `x2`.`pre_common_member` set username= left(username,char_length(username)-3) where username like %\_yz% order by uid asc; 【如果字符串包含中文，不用length而用char_le

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