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Mysql Sql语句|MySql,Sql
Allen   ·  2020.0516 09:49:36
Stat:1246v. 0r. 0u. 0d. 0f 
#0. (Normal)

--增加表字段:修改表 hy_thread 增加字段 fileName 长度50  默认为null   备注:文件名称

ALTER TABLE hy_thread ADD COLUMN fileName VARCHAR(50) DEFAULT NULL COMMENT '文件名称'

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