ÐÞ¸ÄSQL 2005Êý¾Ý¿âĬÈϲ»Çø·Ö´óСд
´´½¨µÄÊý¾Ý¿âÖÐÇø·Ö´óСд
create database test COLLATE Chinese_PRC_CS_AS
Êý¾Ý¿âÖÐÇø·Ö´óСд
alter database test COLLATE Chinese_PRC_CS_AS
»Ö¸´Ä¬ÈϵIJ»Çø·Ö´óСд
alter database test COLLATE Chinese_PRC_CI_AS
Ïà¹ØÎĵµ£º
Ò»£®WITH ASµÄº¬Òå
WITH AS¶ÌÓҲ½Ð×ö×Ó²éѯ²¿·Ö£¨subquery factoring£©£¬¿ÉÒÔÈÃÄã×öºÜ¶àÊÂÇ飬¶¨ÒåÒ»¸öSQLƬ¶Ï£¬¸ÃSQLƬ¶Ï»á±»Õû¸öSQLÓï¾äËùÓõ½¡£ÓеÄʱºò£¬ÊÇΪÁËÈÃSQLÓï¾äµÄ¿É¶ÁÐÔ¸ü¸ßЩ£¬Ò²ÓпÉÄÜÊÇÔÚUNION ALLµÄ²»Í¬²¿·Ö£¬×÷ΪÌṩÊý¾ÝµÄ²¿·Ö¡£
ÌØ±ð¶ÔÓÚUNION ALL±È½ÏÓÐÓá£ÒòΪUNION ALLµÄÿ¸ö²¿·Ö¿ÉÄÜÏàͬ£¬µ ......
Ò»¡£SQL Server µÄÈýÖÖ×Ô¶¨Ò庯Êý
“×Ô¶¨Ò庯Êý”ÊÇÎÒÃÇÆ½³£µÄ˵·¨£¬¶ø“Óû§¶¨ÒåµÄº¯Êý”ÊÇ SQL Server ÖÐÊéÃæµÄ˵·¨¡£
SQL Server 2000 ÔÊÐíÓû§´´½¨×Ô¶¨Ò庯Êý£¬×Ô¶¨Ò庯Êý¿ÉÒÔÓзµ»ØÖµ¡£
×Ô¶¨Ò庯Êý·ÖΪ£º±êÁ¿Öµº¯Êý»ò±íÖµº¯Êý
Èç¹û RETURNS ×Ó¾äÖ¸¶¨Ò»ÖÖ±êÁ¿Êý¾ÝÀàÐÍ£¬Ôòº¯ÊýΪ±êÁ¿Öµº¯Êý¡£¿É ......
SQLÖÐobject_idº¯ÊýµÄÓ÷¨ ÊÕ²Ø
int object_id('objectname');
´Ë·½·¨·µ»ØÊý¾Ý¿â¶ÔÏó±êʶºÅ¡£
ÆäÖУ¬²ÎÊýobjectname ±íʾҪʹÓõĶÔÏ󣬯äÊý¾ÝÀàÐÍΪnchar»òchar£¨Èç¹ûΪchar£¬ÏµÍ³½«Æäת»»Îªnchar£©
·µ»ØÀàÐÍΪint£¬±íʾ¸Ã¶ÔÏóÔÚϵͳÖеıàºÅ¡£
±ÈÈ磺
use wf_timesheet
select object_id('usp_check_excess ......
´´½¨´æ´¢¹ý³Ì֮ǰҪÏÈÓÃuseÓï¾äÉùÃ÷Òª½«´æ´¢¹ý³Ì´æ´¢ÔÚÄĸöÊý¾Ý¿âÖÐ. e.g use company; Ö´ÐÐÖ®.Ö®ºó¾Í¿ÉÒÔÉùÃ÷´æ´¢¹ý³ÌÁË. e.g create procedure *** @id varchar(50) , @name int output as select @name=name from table where id=@id È»ºó¿ÉÒÔÓÃalter¶Ô´æ´¢¹ý³Ì½øÐÐÐÞ¸Ä. declare¿ÉÒÔÉùÃ÷Ò»¸ö±äÁ¿ ÓÃset¶Ô±ä ......