Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

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÷°×°¡

ÒýÓÃ
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


»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

¹ØÓÚACCESSºÍMSSQLµÄÎÊÌâ - Web ¿ª·¢ / ASP

ÓÐÒ»¸öÊý¾Ý¿âÀïÖ»ÓÐ2WÌõÊý¾Ý²»µ½£¬È´ÓÐ500MÄÇô´ó,Ôõô»ØÊ°¡£¿ÊÇACCESSµÄÊý¾Ý¿â¡£ºóÀ´ÎÒ°ÑACCESSµ¼Èëµ½MSSQLÖУ¬Ò²Õ¼ÓÃÁË500M×óÓҵĿռ䣬Èç¹ûѹËõÊý¾Ý¿âÄØ£¿Çë¸ßÊÖÖ¸µã
ѹËõÊý¾Ý¿â£¿ÄÜ×öµ½Ã´...
ÆÚ´ý¸ßÈËÖ¸µã ÎÒ ......

ÇóÒ»SQL - MS-SQL Server / »ù´¡Àà

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 ......

oracle ÈçºÎµ÷ÓÃmssql´æ´¢¹ý³Ì - Oracle / ¸ß¼¶¼¼Êõ

oracle ͨ¹ýBDlink Á¬½Óµ½Ò»Ì¨MS SQL,²éѯ¶¼¿ÉÒÔ,µ«ÊDz»ÖªµÀÈçºÎÔÚoracleͨ¹ýDBLinkµ÷ÓÃMS SQLµÄ´æ´¢¹ý³Ì,Çó½â~лл~
ÒýÓÃ
oracle ͨ¹ýBDlink Á¬½Óµ½Ò»Ì¨MS SQL,²éѯ¶¼¿ÉÒÔ,µ«ÊDz»ÖªµÀÈçºÎÔÚoracleͨ¹ýDBLinkµ÷ÓÃM ......

¹ØÓÚSQLÓï¾äORµÄÎÊÌâ - Oracle / ¸ß¼¶¼¼Êõ

ͨ¹ýNAME×Ö¶ÎÌõ¼þ²éѯһ¸öÊý¾Ý±í£¬¼ÙÉèÎÒÓÐ100¸öÐÕÃû£¬ÓÐÒÔÏÂÁ½¸ö·½·¨£¬
·½·¨1£º
°Ñ100¸öName ×é³ÉÒ»¸öSQLÓï¾ä£¬±ÈÈç Select * from tmp_table where Name='ÕÅÈý' or Name ='ÀîËÄ' Or ...Or Name='µÚÒ»°Ù¸öÐÕÃû'
......

ASPÒ³ÃæÎÞ·¨´ò¿ªÇóÖú£¡ - MS-SQL Server / »ù´¡Àà

¸÷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» ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ