Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

SQL Server 2005 UNIQUE Ô¼Êø

SQL Server 2005£º
ALTER Table Content_Node
ADD CONSTRAINT uc_TREECODE UNIQUE (TreeCode)
ALTER TABLE Content_Node
DROP CONSTRAINT uc_TREECODE
Ô¼ÊøËùÔÚ×ֶ㤶ÈÉèΪ896£¬ÒòΪUNIQUEÔ¼ÊøµÄ×î´ó¼ü³¤¶ÈΪ 900 ×Ö½Ú£¬¶øUNIQUEÔ¼ÊøÄ¬ÈÏÕ¼ÓÐ4×Ö½Ú¡£
²Î¿¼£ºhttp://www.w3school.com.cn/sql/sql_unique.asp


Ïà¹ØÎĵµ£º

sql 2005 ´æ´¢¹ý³Ì·ÖÒ³ java ´úÂë

 create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',         
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ ......

Êý¾Ý¿âÃüÃû¹æ·¶£¨ÊÊÓÃSQL Server£©

Éè¼ÆÔ­Ôò
 
·ûºÅÈý´ó·¶Ê½£¨Ã¿Ò»Áбí´ïÒ»¸öÒâ˼£¬Ã¿Ò»Ðдú±íÒ»¸öʵÀý/ÿһÐÐÓÐΨһ¼ü/±íÄÚûÓÐÆäËü±íµÄ·ÇÖ÷¼üÐÅÏ¢£©
 
ÿ¸ö±íÓ¦¸ÃÓеÄ3¸öÓÐÓÃ×ֶΣ¨¼Ç¼´´½¨»ò¸üÐÂʱ¼ä/¼Ç¼´´½¨Õß/¼Ç¼°æ±¾£©
 
±ÜÃâ±£Áô×Ö
 
±íÓ¦±ÜÃâ¿ÉΪ¿ÕµÄÁÐ


 
ÃüÃû¹æ·¶
 
±í
±íÃûÈçOr ......

Linq to SQL DataContext Lifetime Management


Linq to SQL uses a DataContext to manage it's access to the database as well as tracking changes made to entities retrieved from the database. Linq to SQL has a persistent approach to managing its 'connection' to the database via this data context and it basically assumes that you use a single Dat ......

Õë¶Ô SAP Êý¾Ý¿âά»¤ SQL Server µÄÊ®´ó×î¼Ñʵ¼ù


×÷Õß
£º
Takayuki Hoshino
׫¸åÈË
£º
Juergen Thomas
¼¼
Êõ
ÉóÔÄÈË
£º
Sanjay Mishra
SQL Server Ϊ SAP Ó¦ÓóÌÐòÌṩÁË׿ԽµÄÊý¾Ý¿âƽ̨¡£ÏÂÁн¨Òé¸ÅÊöÁËÕë¶Ô SAP ʵÏÖά»¤ SQL Server Êý¾Ý¿âµÄ×î¼Ñ×ö·¨¡£
ÿÌìÖ´ÐÐÍêÕûÊý¾Ý¿â±¸·Ý
´Ó
¼¼Êõ½Ç¶ÈÀ´Ëµ£¬Áª»ú±¸·Ý SAP Êý¾Ý¿â²»³ÉÎÊÌâ¡£ÕâÒâζ×Å£¬×îÖ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ