替换数据库表中某个代码段中某个字段的某一段字符串sql
update 表名 set 字段=replace(字段同前面的,"要被替代的字符串","替代后的字符串") where 条件
例如：update t_social_lead_learn set format_lead_learn =replace(format_lead_learn,'http://aaa','http://bbb') where id in (20608,118,331,120)
update 表名 set 字段=replace(字段同前面的,"要被替代的字符串","替代后的字符串") where 条件
例如：update t_social_lead_learn set format_lead_learn =replace(format_lead_learn,'http://aaa','http://bbb') where id in (20608,118,331,120)
