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

sqlÈ¡²éѯֵ

ÈçÌ⣺select name from table1
µÃµ½½á¹û£ºname
          СÍõ
          СÕÔ
          СÀî
          СÖÜ
ÏëÒª½á¹û£º
°Ñ²éѯµ½µÄ½á¹û¸³Öµ¸ø@SQL
Ô­Ö°£º@sql='admin'
ÏëÒª½á¹û£º@sql=@sql+',СÍõ£¬Ð¡ÕÔ£¬Ð¡ÀСÖÜ'
×¢£º¾¡Á¿²»Òªdo..whileÑ­»·
ÔÚÏߵȣ¬Óв»¶®µØ·½Çë˵£¡


¶¥¶¥

declare @sql varchar(500)
select @sql='admin'
select @sql=@sql+','+name from table1
print @sql
ÎÊÌâ»ù±¾½â¾ö£¬¿ÉÊÇ [tabel]±íÊDZäÁ¿£¬²»È·¶¨
¸ÃÈçºÎ

ÒýÓÃ
declare @sql varchar(500)
select @sql='admin'
select @sql=@sql+','+name from table1
print @sql
ÎÊÌâ»ù±¾½â¾ö£¬¿ÉÊÇ [tabel]±íÊDZäÁ¿£¬²»È·¶¨
¸ÃÈçºÎ


SQL code:
declare @table1 nvarchar(50)
set @table1 = '****'
...
exec 'select @sql = @sql + '',''+ name from @table1'
...


ѧϰ

ÒýÓÃ
declare @sql varchar(500)
select @sql='admin'
select @sql=@sql+','+name from table1
print @sql
ÎÊÌâ»ù±¾½â¾ö£¬¿ÉÊÇ [tabel]±íÊDZäÁ¿£¬²»È·¶¨
¸ÃÈçºÎ

ÄǾÍÏñÎÒÃÇÒ»°ãº¯ÊýÑùµÄ


Ïà¹ØÎÊ´ð£º

ÇóSQL£¿

´ó¼ÒºÃ£¬ÇëÎÊÔÚ±íMÖÐÓÐ×ֶΣºa b c d e 
ÎÒÏë²é³öÆäÖÐÂú×ãÏÂÃæÈÎÒâÒ»ÏîµÄÊý¾Ý£¬1.×Ö¶Îa µÄÖµ²»ÊÇ ¡®Êé»ò±Ê»ò±¾¡¯ÖÐÈÎÒ»£¬2.aΪÊéµÄʱºò×Ö¶Îb,cÊÇ¿Õ;3.µ±aֵΪ±ÊµÄʱºòdÊÇ¿Õ;4.µ±aΪ±¾µÄʱºòb,d,e¶¼ÊÇ¿Õ;5.È ......

sql server ´æ´¢¹ý³ÌÑ­»·¸³ÖµµÄÎÊÌâ

СµÜÊǸöÐÂÊÖ ÏÖÔÚÓиöÎÊÌâÒ»Ö±²»Äܽâ¾ö
ÀýÈç
procedure produce_proc
    @p001 nvarchar(8000),
    @p002 nvarchar(8000),
    @p003 nvarchar(8000),
  & ......

SQLÓï¾ä

BeginTime  BtsId Total68PhyRCENum
2009-9-30 0:00 1 192
2009-10-1 0:00 1 192
2009-10-2 0:00 1 192
2009-10-3 0:00 1 192
2009-10-4 0:00 1 256
2009-10-5 0:00 1 256
2009-10-6 0:0 ......

ÇóÒ»SQLÓï¾ä

ÎÒÏÖÔÚÓÐ2¸ö±íTable1£¬Table2¡£¶ÔÓ¦µÄ×ֶΡ¢Êý¾ÝÈçÏ£º

Table1£ºprimary key(a1)
a1(char)      a2(int)
  a            10
  b  & ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ