mysql批量更新和批量更新同一字段为不一样值

时间 2019-12-07 标签 mysql 批量更新同一字段不一样

1.MySQL更新一条记录语句：mysql

UPDATE user SET name='zhangsan' WHERE id=1

2.更新同一条字段为相同值

UPDATE user SET name='zhangsan' WHERE id in (1,2,3);

3.更新不一样记录为不一样值（批量更新）

UPDATE user
SET name = CASE id
    WHEN 1 THEN 'zhangsan'
    WHEN 2 THEN 'lisi'
    WHEN 3 THEN 'wangwu'
END
WHERE id in (1,2,3);