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

MSSQL varbinaryת»»³É×Ö·û´®

--> Title  : varbinaryת»»³É×Ö·û´®
--> Author : wufeng4552
--> Date   : 2009-12-15
declare @s varchar(20),@bin varbinary(1000)
select @s='www.CSDN.net',@bin=cast(@s as varbinary(1000))
declare @re varchar(1000),@i int
select @re='',@i=datalength(@bin)
while @i>0
   begin
      select @re=substring('0123456789ABCDEF',substring(@bin,@i,1)/16+1,1)+
                 substring('0123456789ABCDEF',substring(@bin,@i,1)%16+1,1)+@re
             ,@i=@i-1  
   end
select '0x'+@re
select cast(@s as varbinary(1000))
/*
--------------------------
0x7777772E4353444E2E6E6574
 
(1 個資ÁÏÁÐÊܵ½Ó°響)
*/
/*
--------------------------
0x7777772E4353444E2E6E6574
 
(1 個資ÁÏÁÐÊܵ½Ó°響)
*/


Ïà¹ØÎĵµ£º

MSSQLÌí¼Ó×Ö¶Î˵Ã÷

--×Ö¶ÎÌí¼Ó˵Ã÷
EXEC sp_addextendedproperty 'MS_Description', 'ÒªÌí¼ÓµÄ˵Ã÷', 'user', dbo, 'table', ±íÃû, 'column', ÁÐÃû
--ɾ³ý×Ö¶Î˵Ã÷
EXEC sp_dropextendedproperty 'MS_Description', 'user', dbo, 'table', ±íÃû, 'column', ×Ö¶ÎÃû
--²é¿´×Ö¶Î˵Ã÷
SELECT
    [Table Name] = i_s.TAB ......

MSSQLÊý¾Ý¿âÖз¢ÏÖD99_tmp±íµÄ´¦Àí·½·¨

ÏàÐźܶàASP+MSSQLµÄÍøÕ¾¶¼Óб»ÈË×¢Èë¹ýµÄ¾­Àú£¬Êý¾Ý¿â±íÖжàÁËһЩ±í£¬ÀàËÆÒÔϵıíD99_tmp,D99_cmd£¬kill_kk¡£
D99_tmp£¨subdirectory,depth,fileÈý¸ö×ֶΣ¬ÀïÃæµÄÊý¾Ý¶¼ÊÇÍøÕ¾ÎļþºÍĿ¼£©
MSSQLÊý¾Ý¿â´æÔÚ¼¸¸öΣÏÕµÄÀ©Õ¹´æ´¢¹ý³Ì£¬Ä¬ÈÏPublic×é¿ÉÖ´ÐÐȨÏÞ£¬SQL×¢ÈëÕß¿ÉÀûÓô˶ÁÈ¡ÎļþĿ¼¼°Óû§×飬²¢¿Éͨ¹ýÏÈдÈëÊý¾ ......

½²½âMSSQLÊý¾Ý¿âÖÐSQLËø»úÖÆºÍÊÂÎñ¸ôÀë¼¶±ð

Ëø»úÖÆ
NOLOCKºÍREADPASTµÄÇø±ð¡£
1. ¿ªÆôÒ»¸öÊÂÎñÖ´ÐвåÈëÊý¾ÝµÄ²Ù×÷¡£
BEGIN TRAN t
INSERT INTO Customer
SELECT 'a','a'
2. Ö´ÐÐÒ»Ìõ²éѯÓï¾ä¡£
SELECT * from Customer WITH (NOLOCK)
½á¹ûÖÐÏÔʾ"a"ºÍ"a"¡£µ±1ÖÐÊÂÎñ»Ø¹öºó£¬ÄÇôa½«³ÉΪÔàÊý¾Ý¡£(×¢:1ÖеÄÊÂÎñδÌá½») ¡£NOLOCK±íÃ÷ûÓжÔÊý¾Ý±íÌí¼Ó¹²Ï ......

php 5.3 Á¬½ÓmssqlÊý¾Ý¿â

×î½üÓиöС¶«Î÷Òª²é¿´mssqlÊý¾Ý¿âÊÇÓÃphpʵÏֵģ¬ÒÔǰÎÒÓÃphp5.2ʱ¸Ð¾õͦ¼òµ¥µÄËùÒÔÏëphp5.3Ò²Ó¦¸ÃºÜ¼òµ¥µÄ
ΪʲôҪÓÃphp5.3ÄØÒòΪÎÒÏëÓÃsqlite3.0µÄ°¡£¬ÒòΪphp5.2µÄ²»Ö§³Ösqlite3.0µÄ°¡£¬ËùÒÔÎÒÌØÒâÈ¥ÏÂÁË5.3ÁËÏÂÔØ»ØÀ´Á˲ŷ¢ÏÖ5.3ÀïûÓÐmssqlµÄdllÀ©Õ¹ÁË£¬ÓôÃÆ°¡£¬²»¹ÜÕâô¶àÏÈÓÃÆðÄÇsqlite3.0ÔÙ˵ÁË
sqlite3.0µÄ²¿·Ö ......

MSSQLÊý¾Ý¿â²Ù×÷ʹÓÃÓï¾ä


1.°´ÐÕÊϱʻ­ÅÅÐò: 
Select * from TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as 
2.·ÖÒ³SQLÓï¾ä 
select * from(select (row_number() OVER (ORDER BY tab.ID Desc)) as rownum,tab.* from ±íÃû As tab) As t where rownum between ÆðʼλÖà And ½áÊøÎ»Öà
3.»ñÈ¡µ±Ç°Êý¾ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ