sql server²éѯÊý¾Ý¿âÖаüº¬Ö¸¶¨×Ö·û´®µÄÊý¾Ý±í
·¢²¼Ò»¸öʵÓÃС¹¤¾ß£¬¿ÉÒԺܷ½±ãµÄÔÚÊý¾Ý¿âÖÐÕÒµ½°üº¬Ö¸¶¨×Ö·û´®µÄÊý¾Ý±íÃû¼°ÏàÓ¦¼Ç¼£º
/*
¹¦ÄÜ£º²éѯÊý¾Ý¿âÖаüº¬Ö¸¶¨×Ö·û´®µÄÊý¾Ý±íÃû¼°ÏàÓ¦¼Ç¼
×÷Õߣº³Â¼ÓÅô chjpeng#163.com
ÈÕÆÚ£º2009-08-17
*/
declare @key varchar(30)
set @key = 'test' --Ìæ»»ÎªÒª²éÕÒµÄ×Ö·û´®
DECLARE @tabName VARCHAR(40),@colName VARCHAR(40)
DECLARE @sql VARCHAR(2000)
declare @tsql varchar(8000)
DECLARE tabCursor CURSOR FOR
SELECT name from sysobjects WHERE xtype = 'u' AND name <> 'dtproperties'
OPEN tabCursor
FETCH NEXT from tabCursor INTO @tabName
WHILE @@fetch_status = 0
BEGIN
set @tsql = ''
DECLARE colCursor CURSOR FOR Select Name from SysColumns Where id=Object_Id(@tabName) and xtype=167
OPEN colCursor
FETCH NEXT from colCursor INTO @colName
WHILE @@fetch_status = 0
BEGIN
SET @sql = 'if(exists(select * from ' + @tabName + ' where '
SET @sql = @sql + @colName + ' like ''%' + @key + '%'')) begin select * from '
set @sql = @sql + @tabName + ' where ' + @colName + ' like ''%' + @key + '%'';select '''
+ @tabName + ''' as TableName end'
set @tsql = @tsql + @sql + ';'
FETCH NEXT from colCursor INTO @colName
END
exec(@tsql)
CLOSE colCursor
DEALLOCATE colCursor
FETCH NEXT from tabCursor INTO @tabName
END
CLOSE tabCursor
DEALLOCATE tabCursor
Ïà¹ØÎĵµ£º
Êý¾Ý¿â²Ù×÷£ºÀûÓú¯Êý¼õÉÙ´æ´¢¿Õ¼ä£¨ÒÔʱ¼ä»»È¡¿Õ¼ä£©
ÀýÈçÒ»¸ö±íÓÐIPÁУ¬ÔÚ´æ´¢µÄʱºòÎÒÃÇΪÁ˼õÉÙ´æ´¢¿Õ¼ä£¬¿ÉÒÔ½«Ëüת»¯ÎªÕûÊý£¬´æ´¢ÔÚÊý¾Ý¿â£¬µ«ÊÇÔÚ´ÓÊý¾Ý¿âÀï²éѯ²¢ÏÔʾ¸ø´ó¼Ò¿´µÄʱºò£¬¿ÉÄÜÄãÊÇ¿´²»Ã÷°×ÕûÊý¾ßÌåÊÇʲô¡£ÕâÑùΪÁËÀûÓÚ´ó¼ÒÔĶÁ·ÖÎöÊý¾Ý£¬¿ÉÒÔÔÚ²éѯµÄʱºòÀûÓú¯Êý½«ÕûÊýIPתΪΪ×Ö·û´®
ÀýÈ磺
&nbs ......
Sql server2005ÓÅ»¯²éѯËÙ¶È51·¨²éѯËÙ¶ÈÂýµÄÔÒòºÜ¶à£¬³£¼ûÈçϼ¸ÖÖ£¬´ó¼Ò¿ÉÒԲο¼Ï¡£
I/OÍÌÍÂÁ¿Ð¡£¬ÐγÉÁËÆ¿¾±Ð§Ó¦¡£
¡¡¡¡Ã»Óд´½¨¼ÆËãÁе¼Ö²éѯ²»ÓÅ»¯¡£
¡¡¡¡ÄÚ´æ²»×ã¡£
¡¡¡¡ÍøÂçËÙ¶ÈÂý¡£
¡¡¡¡²éѯ³öµÄÊý¾ÝÁ¿¹ý´ó(¿ÉÒÔ²ÉÓöà´Î²éѯ£¬ÆäËûµÄ·½·¨½µµÍÊý¾ÝÁ¿)¡£
¡¡¡¡Ëø»òÕßËÀËø(ÕâÒ²ÊDzéѯÂý×î³£¼ûµÄÎÊÌ ......
£¨1£© Ñ¡Ôñ×îÓÐЧÂʵıíÃû˳Ðò(Ö»ÔÚ»ùÓÚ¹æÔòµÄÓÅ»¯Æ÷ÖÐÓÐЧ)£º
ORACLE µÄ½âÎöÆ÷°´ÕÕ´ÓÓÒµ½×óµÄ˳Ðò´¦Àífrom×Ó¾äÖеıíÃû£¬from×Ó¾äÖÐдÔÚ×îºóµÄ±í(»ù´¡±í driving table)½«±»×îÏÈ´¦Àí£¬ÔÚfrom×Ó¾äÖаüº¬¶à¸ö±íµÄÇé¿öÏÂ,Äã±ØÐëÑ¡Ôñ¼Ç¼ÌõÊý×îÉٵıí×÷Ϊ»ù´¡±í¡£Èç¹ûÓÐ3¸öÒÔÉϵıíÁ¬½Ó²éѯ, ÄǾÍÐèҪѡÔñ½»²æ±í(intersectio ......
1¡¢ SQL×¢Èë¹¥»÷µÄ±¾ÖÊ£ºÈÿͻ§¶Ë´«µÝ¹ýÈ¥µÄ×Ö·û´®±ä³ÉSQLÓï¾ä£¬¶øÇÒÄܹ»±»Ö´ÐС£
2¡¢ ÿ¸ö³ÌÐòÔ±¶¼±ØÐë¼ç¸ºÆð·ÀÖ¹SQL×¢Èë¹¥»÷µÄÔðÈΡ£
¡¡¡¡ËµÆð·ÀÖ¹SQL×¢Èë¹¥»÷£¬¸Ð¾õºÜÓôÃÆ£¬Õâô¶àÄêÁË´ó¼ÒÒ»Ö±ÔÚÌÖÂÛ£¬Ò²Ò»Ö±ÔÚÕùÂÛ£¬¿ÉÊǵ½ÁËÏÖÔÚËÆºõ»¹ÊÇûÓж¨ÂÛ¡£µ±²»ÖªµÀ×¢ÈëÔÀíµÄʱºò»á¾õµÃºÜÉñÆæ£¬Ôõô¾Í±»×¢ÈëÁËÄØ£¿ ......
1. SQLÓÅ»¯µÄÔÔòÊÇ£º½«Ò»´Î²Ù×÷ÐèÒª¶ÁÈ¡µÄBLOCKÊý¼õµ½×îµÍ,¼´ÔÚ×î¶ÌµÄʱ¼ä´ïµ½×î´óµÄÊý¾ÝÍÌÍÂÁ¿¡£
µ÷Õû²»Á¼SQLͨ³£¿ÉÒÔ´ÓÒÔϼ¸µãÇÐÈ룺
¼ì²é²»Á¼µÄSQL£¬¿¼ÂÇÆäд·¨ÊÇ·ñ»¹ÓпÉÓÅ»¯ÄÚÈÝ
¼ì²é×Ó²éѯ ¿¼ÂÇSQL×Ó²éѯÊÇ·ñ¿ÉÒÔÓüòµ¥Á¬½ÓµÄ·½Ê½½øÐÐÖØÐÂÊéд
¼ì²éÓÅ»¯ ......