Oracle ÖÐûÓÐorder by£¬µ«ÎÒÒª¶Ô³É¼¨½øÐÐÅÅÐòÒªÔõôŪ£¿Ð»Ð»oracleÖÐÔõô»áûÓÐorder by¡£¡£ select * from table1 order by score orale ÖÐûÓÐorder by£¬ÊÇʲôÒâ˼£¿
СÀËÀË£¬ÄãÉÏ°àÁËûÓУ¿ÄãÊÇѧÉúÂ𣿠SQL code: select * from STUDSCOREINFO where STUDNO IN(SELECT STUDNO from STUDSCOREINFO GROUP BY STUDNO ORDER BY STUDSCORE DESC) WHERE rownum <= 5 AND STUDNO LIKE '20010505%'
µÚ 3 ÐгöÏÖ´íÎó: ORA-00907: ȱʧÓÒÀ¨ºÅ
Ϊʲô»á³öÕâ¸ö´íÎó£¿Ã÷Ã÷ûÉÙÀ¨ºÅ ²»ºÃÒâ˼£¬ÉÏÃæ¶àдÁ˸öwhere SQL code: select * from STUDSCOREINFO where STUDNO IN(SELECT STUDNO from STUDSCOREINFO GROUP BY STUDNO ORDER BY STUDSCORE DESC) AND rownum <= 5 AND STUDNO LIKE '20010505%'