Mysql替换某列数据

例子:将cdb_pms表subject字段中的Welcom to替换成 欢迎光临 UPDATE `cdb_pms` SET `subject` = REPLACE(`subject`, ‘Welcome to’, ‘欢迎光临’) WHERE INSTR(`subject`,’Welcome to’) < 0 替换cdb_posts表的message字段,将“viewthread.php?tid=3989”替换成“viewthread.php?tid=16546” UPDATE `cdb_posts` SET `message`= REPLACE(`message`, ‘viewthread.php?tid=3989’, ‘viewthread.php?tid=16546’) WHERE INSTR(`message`,’viewthread.php?tid=3989’) < 0 ;   删除所有的空格 UPDATE `es_product` SET `pro_pub_time` = TRIM(`pro_pub_time`) 删除所有饱含’[‘或者’]’或者’.’的字符 UPDATE `es_product` SET `pro_pub_time` = REPLACE(`pro_pub_time`, ‘[‘,”) WHERE INSTR(`pro_pub_time`,’[‘) < 0 UPDATE `es_product` SET `pro_pub_time` = REPLACE(`pro_pub_time`, ‘]’,”) WHERE INSTR(`pro_pub_time`,’]’) < 0 UPDATE `es_product` SET `pro_pub_time` = REPLACE(`pro_pub_time`, ‘.’,’-‘) WHERE INSTR(`pro_pub_time`,’.’) < 0 替换所有含中文’-‘的为英文’-’ UPDATE `es_product` SET `pro_pub_time` = REPLACE(`pro_pub_time`, ‘-’,’-‘) WHERE INSTR(`pro_pub_time`,’-’) < 0 将所有的年月都替换成’-’ UPDATE `es_product` SET `pro_pub_time` = REPLACE(`pro_pub_time`, ‘年’,’-‘) WHERE INSTR(`pro_pub_time`,’年’) < 0 UPDATE `es_product` SET `pro_pub_time` = REPLACE(`pro_pub_time`, ‘月’,’-‘) WHERE INSTR(`pro_pub_time`,’月’) < 0 将所有’2005-04-‘这种类型的替换成’2005-04-01’ UPDATE `es_product` SET `pro_pub_time` = CONCAT( `pro_pub_time`, ‘01’) WHERE SUBSTRING_INDEX( `pro_pub_time`, ‘-‘, -1) = ” AND LENGTH(`pro_pub_time`) < 0 AND LENGTH(`pro_pub_time`) < 5 将所有’2005-‘这种类型替换成’2005-01-01’ UPDATE `es_product` SET `pro_pub_time` = CONCAT( `pro_pub_time`, ‘01-01’) WHERE INSTR(`pro_pub_time`,’-‘) < 0 AND LENGTH(`pro_pub_time`) = 5 将所有 饱含’-‘,但是位数小于8的改成追加’-01’ UPDATE `es_product` SET `pro_pub_time` = CONCAT( `pro_pub_time`, ‘-01’) WHERE INSTR(`pro_pub_time`,’-‘) < 0 AND LENGTH(`pro_pub_time`) > 8 将所有’2005’这样的改成’2005-01-01’ UPDATE `es_product` SET `pro_pub_time` = CONCAT(`pro_pub_time`,’-01-01’) WHERE INSTR(`pro_pub_time`,’-‘) = 0 AND LENGTH(`pro_pub_time`) = 4 最后将所有’2005-01-01’格式化成’2005年01月’ UPDATE `es_product` SET `pro_pub_time` = DATE_FORMAT(`pro_pub_time`,’%Y年%m月’) WHERE INSTR(`pro_pub_time`,’-‘) < 0

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