MSSQL ÐÐÊýͳ¼ÆµÄÎÊÌâ - MS-SQL Server / ÒÉÄÑÎÊÌâ
ÓÐÁ½¸ö±í£¬ÊýÁ¿¼¶ÔÚ3000w×óÓÒ£¬
Ïë²é¿´¾ßÌåµÄÊýÁ¿£¬ÓÃselect Count(*) ËÙ¶ÈÌ«Âý£¬
֮ǰ¿´µ½ËµÔÚsysindexesÖÐÓÐrows ÁУ¬ µ«ÊÇÎÒ·¢ÏÖ£¬ÕâÁ½¸öµÄÖµ²»Ò»Ñù£¬Ôõô»ØÊ°¡£¿
лл
ÓÐÈËÄܻشðÒ»ÏÂÂð? ²»ÊǺÜÃ÷°×°¡
»á²»»áÊÇÄãcount()²éѯÍêµÄʱºò£¬ÁíÒ»¸öÓû§ÔÚÔö¼Ó»òɾ³ý¼Ç¼£¬µ¼ÖÂÄãÔÙ²éѯsysindexes±íµÄʱºò£¬¼Ç¼²»Ò»Ö¡£
ѧϰ£¡
sysindexes±íͳ¼Æ³öÀ´µÄÊǸö²»Ì«¾«È·µÄÖµ ÒòΪsql server²»ÊÇʵʱ¸üÐÂsysindexesÖеÄrowsÁУ¬¶øÊǶ¨Ê±¸üС£
Ïà¹ØÎÊ´ð£º
ÎÒÓÐÒ»¸ö±í£¬½á¹¹ÊÇÕâÑù¡£
ת³ö µ¥Î» תÈ뵥λ ±ÊÊý ½ð¶î
date(Ö÷) outid(Ö÷) inid(Ö÷) num amt
2009 1 2 1 500 Ϊ 1 µ¥Î» ÔÚ2009Ä ......
ÏÖÔÚÓÐÁ½ÕÅ±í£ºÎÄÕÂÖ÷±íA(articleId,articleTitle)£¬ÎÄÕÂÆÀÂÛ±íB(commentId,articleId,commentTitle)
ÏÖÔÚÎÒÏëʵÏÖÕâÑùµÄ¹¦ÄÜ£ºÁгöÎÄÕÂÁÐ±í£¬ÆäÖÐÿƪÎÄÕ±êÌâÏÂÃæÁгö´ËÎÄÕµÄÇ°2¸öÎÄÕÂÆÀÂÛ£¬ÇëÎÊsqlÓï¾äÔõôд°¡ ......
tab1 ×Ö¶Î:billdate,goodsid,incount,inmoney,outcount,outmoney,endprice,endcount,endamt
tab2 ×Ö¶Î:goodsid,goodskind£¨ÉÌÆ·ÀàÐÍ£©
tab3 ×Ö¶Î:goodskind£¨ÉÌÆ·ÀàÐÍ£©,kindname
½á¹û£º
µÃµ½ÉÌÆ·ÀàÐÍÔÚÒ»¶Îʱ¼ä ......
±íÊý¾Ý
COL1 COL2 COL2 COL4 COL5
----------------------------------------------------------------------------------------------
2010-05-05 00:00 ......
¸÷λºÃ£¬ÎÒ¸Õ°ÑÒ»¸öASPÍøÕ¾ÉèÖúÃÁË£¬Ò²ÄÜÕý³£·ÃÎÊ¡£µ«ÊÇÔÚÎÒ±¾»úÉϲ»ÄÜ´ò¿ªadmin\login.asp,ËùÒÔÎÞ·¨ÊµÏÖºǫ́¹ÜÀí¡££¨´íÎóÌáʾÎÞ·¨ÕÒµ½ÍøÒ³£¬´úÂë404£¬ÎҵIJÙ×÷ϵͳÊÇwin2000 server)
µ«ÊÇÆæ¹ÖµÄÊÇÔÚ¾ÖÓòÍøµÄÆäËû» ......