INSERT INTO im_group_member (im_group_id_,user_id_,nickname_,is_admin_,role_type_,create_time_,update_time_)
VALUES(#{imGroupId},#{userId},#{nickname},#{isAdmin},#{roleType},NOW(),NOW())
INSERT INTO im_group_member (im_group_id_,user_id_,nickname_,is_admin_,role_type_,create_time_,update_time_) VALUES
(#{item.imGroupId},#{item.userId},#{item.nickname},#{item.isAdmin},#{item.roleType},NOW(),NOW())
UPDATE im_group_member
role_type_ = #{roleType},
user_id_ = #{userId},
nickname_ = #{nickname},
is_admin_ = #{isAdmin},
im_group_id_ = #{imGroupId},
update_time_ = NOW()
WHERE id_ = #{id}
UPDATE im_group_member
role_type_ = #{item.roleType},
user_id_ = #{item.userId},
nickname_ = #{item.nickname},
is_admin_ = #{item.isAdmin},
im_group_id_ = #{item.imGroupId},
update_time_ = NOW()
WHERE id_ = #{item.id}
DELETE FROM im_group_member WHERE id_ = #{id}
DELETE FROM im_group_member WHERE im_group_id_ = #{imGroupId}
DELETE FROM im_group_member WHERE id_ in
#{item.id}