您当前所在位置是: 基层单位 > 煤炭交易中心
煤炭交易中心

    SQL语句错误: SELECT b.class_name,a.* FROM wkcx_content AS a,wkcx_class AS b WHERE a.cat_id=b.id and a.xianshi='1' AND a.cat_id=1957 ORDER BY news_order ASC,add_time DESC limit -20,20
    错误信息: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-20,20' at line 1