select user_id, external_userid, avatar, nickname, gender, unionid, create_time from chat_user and external_userid = #{externalUserid} and avatar = #{avatar} and nickname like concat('%', #{nickname}, '%') and gender = #{gender} and unionid = #{unionid} where user_id = #{userId} insert into chat_user external_userid, avatar, nickname, gender, unionid, create_time, #{externalUserid}, #{avatar}, #{nickname}, #{gender}, #{unionid}, #{createTime}, update chat_user external_userid = #{externalUserid}, avatar = #{avatar}, nickname = #{nickname}, gender = #{gender}, unionid = #{unionid}, create_time = #{createTime}, where user_id = #{userId} delete from chat_user where user_id = #{userId} delete from chat_user where user_id in #{userId}