id_, level_, fee_, create_time_, update_time_, tenant_id_ SELECT FROM music_theory WHERE id_ = #{id} SELECT FROM music_theory WHERE tenant_id_ = #{tenantId} ORDER BY id_ INSERT INTO music_theory (id_,level_,fee_,create_time_,update_time_,tenant_id_) VALUES(#{id},#{level},#{fee},NOW(),NOW(),#{tenantId}) UPDATE music_theory level_ = #{level}, id_ = #{id}, fee_ = #{fee}, create_time_ = #{createTime}, tenant_id_ = #{tenantId}, update_time_ = NOW() WHERE id_ = #{id} DELETE FROM music_theory WHERE id_ = #{id} 1=1 AND tenant_id_ = #{tenantId} SELECT * FROM music_theory ORDER BY id_ SELECT COUNT(*) FROM music_theory SELECT * FROM music_theory WHERE tenant_id_=#{tenantId}