SQLÐÐתÁдúÂë
1. SQLÐÐתÁдúÂë
-
-
±íÀïÃæÓÐÕâôһ×éÊý¾Ý:
code price
'MCU0-3' 15
'MCU0-3' 20
'MCU0-3' 22
'MCU3-15' 17
'MCU3-15' 16
'MCU3-15' -10
'MCU3-15' 50
'MCU3-27' 99
'MCU3-27' 96
'MCU3-27' 54
'MCU3-27' 14
'MCU3-27' 46
'MCU3-27' 86
ÏÖÔÚÐèÒªµÃµ½ÕâÑùµÄ½á¹û:
MCU0-3 MCU3-15 MCU3-27
15 17 99
20 16 96
22 -10 54
null 50 14
null null 46
null null 86
SQLÓï¾äÊÇÕâÑùдµÄ:
SELECT ID = IDENTITY(INT, 1, 1), price into #T1 from [table] where code = 'MCU0-3'
SELECT ID = IDENTITY(INT, 1, 1), price into #T2 from [table] where code = 'MCU3-15'
SELECT ID = IDENTITY(INT, 1, 1), price into #T3 from [table]
Ïà¹ØÎĵµ£º
²é¿´»ØÊÕÕ¾Öбí
select object_name,original_name,partition_name,type,ts_name,createtime,droptime from recyclebin;
»Ö¸´±í
SQL
>flashback table test_drop to before drop;»ò
SQL
>flashback table "BIN$b+XkkO1RS5K10uKo9BfmuA==$0" to befor ......
Select TOP N * from TABLE Order By NewID()
--Access£º
Select TOP N * from TABLE Order By Rnd(ID)
Rnd(ID) ÆäÖеÄIDÊÇ×Ô¶¯±àºÅ×ֶΣ¬¿ÉÒÔÀûÓÃÆäËûÈκÎÊýÖµÀ´Íê³É£¬±ÈÈçÓÃÐÕÃû×Ö¶Î(UserName)
Selec ......
½ñÌìÔڵǼsql2005µÄʱºò£¬ÏëÓÃsaµÄÑéÖ¤·½Ê½µÇ¼£¬·¢ÏֵǼ²»ÁË£¬ÔÚÍøÉϲéÁËÏ£¬°´ÕÕÏÂÃæµÄ¾Í¿ÉÒÔ½â¾ö¡£Ö®Ç°ÔÚ×°sql2005µÄʱºò£¬ÊÇÉèÖóÉwindowsÑéÖ¤·½Ê½µÇ¼µÄ¡£
¾ßÌå½â¾ö·½°¸ÈçÏ£º
1. ¿ªÆôsql2005Ô¶³ÌÁ¬½Ó¹¦ÄÜ,¿ªÆô°ì·¨ÈçÏÂ,
ÅäÖù¤¾ß->sql serverÍâΧӦÓÃÅäÖÃÆ÷->·þÎñºÍÁ¬½ÓµÄ ......
¼¸¸ö´æ´¢¹ý³Ì£¬ºÜ¼òµ¥µÄ£¬µ«ÊÇÎÒ´ÓÀ´Ã»ÓÐѧϰ¹ý£¬ºÇºÇ£¬Õâ¸öÕýÊÇÎÒÒªÀ´ÅàѵµÄÄ¿µÄ
-- =============================================
-- Author:
-- Create date: 2010Äê05ÔÂ12ÈÕ
-- Description: ´Ë¹ý³ÌÓÃÓÚ²éѯËùÓÐÓû§Ãû¼°ÃÜÂë
-- =============================================
CREATE PROCED ......
SQLÓï¾ä¼¶±ðµÄÓÅ»¯ÊÇÎÒÃÇʵ¼Ê¹¤×÷ÖнӴ¥×î¶àµÄ£¬¼¸ºõËùÓеÄÊý¾Ý¿âÓ¦ÓÃ˵µ½µ×¶¼ÊÇSQLÓï¾äµÄ¾ßÌåÖ´ÐУ¬Òò´ËÈçºÎ¶ÔSQL½Å±¾±¾Éí½øÐÐÓÅ»¯£¬Ìá¸ßÖ´ÐÐЧÂʾÍÏÔµÃÓÈÎªÖØÒª¡£ÒÔÏÂÊÇһЩͨÓõÄÉè¼ÆÔÔò¡£
(1)ʹÓÃselectÓï¾ä²éѯʱ£¬¾¡Á¿²»ÒªÊ¹ÓÃselect *¡¡Óï¾ä£¬¶øÊÇÓ¦¸ÃÖ¸Ã÷¾ßÌåÒª²éѯµÄ×ֶΣ¬ÌáÈ¡µÄ×Ö¶ÎÊýÁ¿Ô½É ......