Mybatis-Plus 只查询某些字段
select
@Test
public void selectByWrapper10() {
list = this.list(new QueryWrapper<AlertSuperviseCorrelationEntity>().select("supervise_department_name").eq("org_id", orgId).groupBy("supervise_department_name"));
}
Update
UpdateWrapper<User> updateWrapper = new UpdateWrapper<>();
updateWrapper.eq("name","shimin").set("age", 35);
Integer rows = userMapper.update(null, updateWrapper);
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