sql ¼ÓÃÜ
use Tempdb
go
if object_ID ( 'fn_ACITEncryption' ) is not null
drop function fn_ACITEncryption
go
create function fn_ACITEncryption
(
@Str nvarchar ( 4000), -- ¼ÓÃܵÄ×Ö·û´®
@Flag bit = 1, --1 ¡¢¼ÓÃÜ 0 ¡¢½âÃÜ
@Key nvarchar ( 50) -- ÃÜÎÄ
)
returns nvarchar ( 4000) -- 這Àï¿É轉換³É¶þ進ÖÆ
with Encryption
as
begin
Declare @LenStr int , @i int , @Str2 nvarchar ( 4000), @Split nvarchar ( 2), @LenKey int
select @Str= @Str+ 'A' , @LenStr= len ( @Str), @i= 1, @Str2= '' , @LenKey= Len ( @Key+ 'A' )- 1
while @i< @LenStr
select @Split= substring ( @Str, @i, 1),
@Split= nchar (( unicode ( @Split)+ case @Flag when 1 then unicode ( substring ( @Key+ 'A' , @i% @LenKey+ 1, 1))- 1
when 0 then 65535- unicode ( substring ( @Key+ 'A' , @i% @LenKey+ 1, 1))
else 0 end )% 65535+ cast ( @Flag as int )),
@Str2= @Str2+ @Split, @i= @i+ 1
return @Str2
end
go
select dbo. fn_ACITEncryption( N'Roy' , 1, '123' ) as ¼ÓÃܺó×Ö·û´®
/*
¼ÓÃܺó×Ö·û´®
------------------------------
(1 個資ÁÏÁÐÊܵ½Ó°響 )
*/
select dbo. fn_ACITEncryption( N, 0, '123' ) as ½âÃܺó×Ö·û´®
/*
½âÃܺó×Ö·û´®
--------------------------
Roy
(1 個資ÁÏÁÐÊܵ½Ó°響 )
*/
±¾ÎÄÀ´×ÔCSDN²©¿Í£¬×ªÔØÇë±êÃ÷³ö´¦£ºhttp://blog.csdn.net/roy_88/archive/2009/11/12/4801917.aspx
Ïà¹ØÎĵµ£º
ϵͳ»·¾³£ºWindows 7
Èí¼þ»·¾³£ºVisual C++ 2008 SP1 +SQL Server 2005
±¾´ÎÄ¿µÄ£º±àдһ¸öº½¿Õ¹ÜÀíϵͳ
ÕâÊÇÊý¾Ý¿â¿Î³ÌÉè¼ÆµÄ³É¹û£¬ËäÈ»³É¼¨²»¼Ñ£¬µ«ÊÇ×÷ΪÎÒÓÃVC++ ÒÔÀ´±àдµÄ×î´ó³ÌÐò»¹ÊÇ´«µ½ÍøÉÏ£¬ÒÔ¹©²Î¿¼¡£ÓÃVC++ ×öÊý¾Ý¿âÉè¼Æ²¢²»ÈÝÒ×£¬µ«Ò²²»ÊDz»¿ÉÄÜ¡£ÒÔÏÂÊÇÎҵijÌÐò½çÃ棬ºóÃæ ......
ÏÂÃæÊÇÖ¸µ¼Îĵµ¡£Çë¸ú×ÅÒ»²½²½µÄ×ö¡£¾ÍÄܳɹ¦Á¬½ÓÉÏsql server 2008
javaÖÐÁ¬½Ósql server 2008µÄ×¢ÒâÊÂÏ
2000£¬2005µÄÊý¾Ý¿âÇý¶¯ÀàµÄд·¨ÊÇ£º
com.microsoft.jdbc.sqlserver.SQLServerDriver
URLµÄд·¨ÊÇ£º¼ÙÉèÊý¾Ý¿âÊÇnews
jdbc:microsoft:sqlserver://localhost:1433;databaseName=news
µ«ÊÇ20 ......
ÐÂ×°»òÕßÒÔÇ°×°¹ýsql server£¬ºóÀ´É¾µô¡£ÏÖÔÚÖØ×°£¬»á³öÏÖ“ÒÔÇ°µÄij¸ö³ÌÐò°²×°ÒÑÔÚ°²×°¼ÆËã»úÉÏ´´½¨¹ÒÆðµÄÎļþ²Ù×÷£¬ÔËÐа²×°³ÌÐò֮ǰ±ØÐëÖØÐÂÆô¶¯¼ÆËã»ú”´íÎó¡£ÎÞ·¨½øÐÐÏÂÈ¥¡£
ÒÔÏÂΪ½â¾ö²½Ö裺
1£©Ìí¼Ó/ɾ³ý³ÌÐòÖг¹µ×ɾ³ýsql server¡£
2£©½«Ã»ÓÐɾ³ýµÄsql serverĿ¼Ҳɾ³ýµô¡£
3£©´ò¿ª×¢²á±í±à¼Æ÷£ ......
Sql ServerÖеÄÈÕÆÚÓëʱ¼äº¯Êý
1. µ±Ç°ÏµÍ³ÈÕÆÚ¡¢Ê±¼ä
select getdate()
2. dateadd ÔÚÏòÖ¸¶¨ÈÕÆÚ¼ÓÉÏÒ»¶Îʱ¼äµÄ»ù´¡ÉÏ£¬·µ»ØÐ嵀 datetime Öµ
ÀýÈ磺ÏòÈÕÆÚ¼ÓÉÏ2Ìì
select dateadd(day,2,'2004-10-15') --·µ»Ø£º2004-10-17 00:00:00.000
3. datediff ·µ»Ø¿çÁ½¸öÖ ......
left join(×óÁª½Ó) ·µ»Ø°üÀ¨×ó±íÖеÄËùÓмǼºÍÓÒ±íÖÐÁª½á×Ö¶ÎÏàµÈµÄ¼Ç¼
right join(ÓÒÁª½Ó) ·µ»Ø°üÀ¨ÓÒ±íÖеÄËùÓмǼºÍ×ó±íÖÐÁª½á×Ö¶ÎÏàµÈµÄ¼Ç¼
inner join(µÈÖµÁ¬½Ó) Ö»·µ»ØÁ½¸ö±íÖÐÁª½á×Ö¶ÎÏàµÈµÄÐÐ
¾ÙÀýÈçÏ£º
--------------------------------------------
±íA¼Ç¼ÈçÏ£º
aID¡¡¡¡¡¡¡¡¡¡aNum
1¡¡¡¡¡¡¡¡¡¡a ......