批量增加
insert into t_user (user_name,sex) values
(#{user.userName},#{user.sex})
批量删除
delete from t_user where id in (
#{id}
)
第二种批量删除的写法
open表示该语句以什么开始,close表示以什么结束
delete from t_user where id in
#{id}
复杂条件批量删除
delete from user where id > 2000 or id in
#{item}
复杂条件批量删除 建议增加联合索引
delete from test where
(name = #{item.name} and area_code = #{item.areaCode} and type = #{item.type})
复杂条件批量删除 IN操作
delete from test where (PRSNLID, ENTID) in
(#{item.prsnlid},#{item.entid})
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