mysql 常用操作tips

  ALTER TABLE `cdb_user_group_org_mapping` add (
      `status` tinyint(1) unsigned NOT NULL DEFAULT '1' COMMENT '數據有效性  0 無效 1 有效',
      `create_time` varchar(80) DEFAULT NULL COMMENT '創建時間',
      `modify_time` varchar(80) DEFAULT NULL COMMENT '修改時間';
)

UPDATE cdb_user_group_org_mapping1 SET status = 1, create_time = "2019/10/28 17:18:25", modify_time = "2019/10/28 17:18:25" WHERE id > 0

create table cdb_user_group_org_mapping1 like cdb_user_group_org_mapping;

INSERT INTO cdb_user_group_org_mapping1 SELECT * FROM cdb_user_group_org_mapping;

1 批量update

UPDATE
dw_cdb_course_dim_mg_mapping a,
dw_cdb_org_info b 
SET a.manage_group_id=b.id
WHERE
a.manage_group_name is not null 
and
a.manage_group_name = b.org_name;