aid, uid, create_time, last_update_time delete from activity_user where aid = #{aid,jdbcType=BIGINT} and uid = #{uid,jdbcType=VARCHAR} insert into activity_user (aid, uid, create_time, last_update_time) values (#{aid,jdbcType=BIGINT}, #{uid,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP}, #{lastUpdateTime,jdbcType=TIMESTAMP}) insert into activity_user aid, uid, create_time, last_update_time, #{aid,jdbcType=BIGINT}, #{uid,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP}, #{lastUpdateTime,jdbcType=TIMESTAMP}, update activity_user create_time = #{createTime,jdbcType=TIMESTAMP}, last_update_time = #{lastUpdateTime,jdbcType=TIMESTAMP}, where aid = #{aid,jdbcType=BIGINT} and uid = #{uid,jdbcType=VARCHAR} update activity_user set create_time = #{createTime,jdbcType=TIMESTAMP}, last_update_time = #{lastUpdateTime,jdbcType=TIMESTAMP} where aid = #{aid,jdbcType=BIGINT} and uid = #{uid,jdbcType=VARCHAR} delete from activity_user where aid in #{item}