Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

sql server ×Ô¶¨Òåsplit(·Ö¸î)º¯Êý

ALTER function [dbo].[split]
(
@SourceSql varchar(8000),
@StrSeprate varchar(10)
)
returns @temp table(F1 varchar(100))
as
begin
declare @i int
set @SourceSql = rtrim(ltrim(@SourceSql))
set @i = charindex(@StrSeprate,@SourceSql)
while @i >= 1
begin
if len(left(@SourceSql,@i-1))>0
begin
insert @temp values(left(@SourceSql,@i-1))
end
set @SourceSql=substring(@SourceSql,@i+1,len(@SourceSql)-@i)
set @i=charindex(@StrSeprate,@SourceSql)
end
if @SourceSql <> ''
insert @temp values(@SourceSql)
return
end
----------------------------------------
//Ó¦ÓÃ
--¿ªÊ¼µü´ú·Ö¸î³öÀ´µÄ²ÎÊý
declare @str nvarchar(10)
declare auth_cur cursor for select F1 from split(Òª·Ö¸îµÄ²ÎÊý,'·Ö¸ô·û')
open auth_cur
fetch next from auth_cur into @str
while ( @@fetch_status = 0 )
begin
//×ö´¦Àí
end
close auth_cur
deallocate auth_cur


Ïà¹ØÎĵµ£º

ms sql case when elseÓï¾äʹÓü¼ÇÉ

    ¹¤×÷ÖÐÅöµ½µÄС¼¼ÇÉ£¬±ÈÈç˵ҪÓÃÊý¾Ý±íÀïÈ¡³ö×¢²áÓû§µÄ×ÊÁÏ£¬ÐÔ±ðΪ1ÔòÏÔʾΪÄÐÉú£»ÐÔ±ðΪ2ÔòÏÔʾΪŮÉú£»ÒÔÇ°¶¼ÊÇ´Ó±íÀïÈ¡³öÊý¾Ý£¬È»ºóÔÙÓôúÂë½øÐÐÅжϣ¬Îª1ÔòÏÔʾΪÄÐÉú£»Îª2ÔòÏÔʾΪŮÉú£»Æäʵµ¥ÓÃSQLÓï¾ä¾Í¿ÉÒÔ×öµ½£¬ÈçÏ£º
Ö±½ÓʹÓÃcase when else Óï¾ä
Case¾ßÓÐÁ½ÖÖ¸ñʽ¡£¼òµ¥Caseº¯ÊýºÍCaseË ......

¹ØÓÚSQLʱ¼äÀàÐ͵ÄÄ£ºý²éѯ

½ñÌìÓÃtime Like '2008-06-01%'Óï¾äÀ´²éѯ¸ÃÌìµÄËùÓÐÊý¾Ý£¬±»ÌáʾÓï¾ä´íÎó¡£²éÁËһϲŷ¢ÏÖ¸ÃÄ£ºý²éѯֻÄÜÓÃÓÚStringÀàÐ͵Ä×ֶΡ£
×Ô¼ºÒ²²éÔÄÁËһЩ×ÊÁÏ¡£¹ØÓÚʱ¼äµÄÄ£ºý²éѯÓÐÒÔÏÂÈýÖÖ·½·¨£º
 
1.Convertת³ÉString,ÔÚÓÃLike²éѯ¡£
select * from table1   where c ......

LINQ to SQL¸üÐÂÊý¾Ý¿â²Ù×÷

ʹÓÃLINQ to SQL½¨Ä£NorthwindÊý¾Ý¿â
ÔÚÕâ֮ǰһÆðѧ¹ýLINQ to SQLÉè¼ÆÆ÷µÄʹÓã¬ÏÂÃæ¾ÍʹÓÃÈçϵÄÊý¾ÝÄ£ÐÍ£º
µ±Ê¹ÓÃLINQ to
SQLÉè¼ÆÆ÷Éè¼ÆÒÔÉ϶¨ÒåµÄÎå¸öÀࣨProduct£¬Category£¬Customer£¬OrderºÍOrderDetail£©µÄʱºò£¬Ã¿¸öÀàÖеÄÊôÐÔ
¶¼Ó³ÉäÁËÏàÓ¦Êý¾Ý¿âÖбíµÄÁУ¬Ã¿¸öÀàµÄʵÀýÔò´ú±íÁËÊý¾Ý¿â±íÖеÄÒ»Ìõ¼Ç¼¡£ÁíÍ⣬ ......

¡¾×ª¡¿ PL/SQL×î²îʵ¼ù

PL/SQL×î²îʵ¼ù
http://benben.javaeye.com/blog/278164
1. ³¬³¤µÄPL/SQL´úÂë
           Ó°Ï죺¿Éά»¤ÐÔ£¬ÐÔÄÜ
           Ö¢×´£º
            ÔÚ¸´ ......

50Ìõ³£ÓÃsqlÓï¾ä

×¢£º³ö´¦ÒѲ»¿É¿¼£¬²»¹ý£¬ÆäÖв»ÉÙÓï¾ä»¹ÊÇÂù¾«ÃîµÄ¡£
Student(S#(ѧºÅ),Sname(ÐÕÃû),Sage(ÄêÁä),Ssex(ÐÔ±ð)) ѧÉú±í
Course(C#(¿Î³Ì±àºÅ),Cname(¿Î³ÌÃû³Æ),T#(ÀÏʦ±àºÅ)) ¿Î³Ì±í
SC(S#(ѧºÅ),C#(¿Î³Ì±àºÅ),score(·ÖÊý)) ³É¼¨±í
Teacher(T#(ÀÏʦ±àºÅ),TnameSname(ÐÕÃû)) ½Ìʦ±í
ÎÊÌ⣺
1¡¢²éѯ“001” ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ