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

sqlserverÊý¾Ý¼Ó×ÜÅÅÐòµÄÓï¾äÔõôд£¿

sqlserverÊý¾Ý¼Ó×ÜÅÅÐòµÄÓï¾äÔõôд£¿
ÈçÏÂÊý¾Ý±ítable
id
a
a
a
b
b
c

ÎÒÒªµÃµ½µÄΪ£º
a 3
b 2
c 1

ÕâÑù¼Ó×ÜidÃû³ÆÒ»ÑùµÄ²¢½øÐÐÅÅÐòÓ¦¸ÃÔõôд£¿
SQL code:
select id,count(1) from tb group by id


SQL code:
SELECT *,(SELECT COUNT(1) from TB WHERE ID=T.ID)AS NUM
from TB T ORDER BY
(SELECT COUNT(1) from TB WHERE ID=T.ID) DESC


SQL code:
select id,count(1) as px from tb order by px desc

ÕâÑù£¿»¹ÊÇÇɺϣ¿

SQL code:
select id,count(1) from tb group by id ORDER BY 2 DESC


SQL code:
select id,count(1) as px from tb order by count(1) desc


SQL code:
---²âÊÔÊý¾Ý---
if object_id('[tb]') is not null drop table [tb]
go
create table [tb]([id] varchar(1))
insert [t


Ïà¹ØÎÊ´ð£º

¼±¼±¼±,SqlServerµÄÎÊÌâ

ÎÒÍùSqlServerÖмÓÊý¾ÝµÄʱºò,Ëû¸øÎÒ±¨Á˸ö´í
˵:"µ± IDENTITY_INSERT ÉèÖÃΪ OFF ʱ£¬²»ÄÜÏò±í 'O_TRAIN_CATEGORY' ÖеıêʶÁвåÈëÏÔʽֵ¡£"
ÒòΪÎÒÕâ¸ö±íµÄÖ÷¼üÉèÖõÄÊÇ×ÔÔöµÄ!ÊDz»ÊÇ×ÔÔöû¿ª°¡?Ôõô¸ ......

SQLserverÊý¾Ý²éѯ£¬¸ßÊÖ½øÀ´¿´ÏÂ

±àºÅ ¼¶±ð Ãû³Æ Éî¶È
1 0 ÐÂÎÅ 1
2 0 ²Æ¾­ 1
3 1 ¾üÊ 2
4 2 ¹ÉƱ 3
5 0 ·¿²ú 1
6 1 Çé¸Ð 2
7 1 ¹úÄÚ 2
8 1 ¹ú¼Ê 2
14 2 ÓÊÕþµçÐÅ 2
15 2 »·±£ 2
16 5 ITÆó ......

sqlserverÖÐתÒåµÄд·¨ÎÊÌâ

select * from export where Æ·ÅÆ is not null and ÎÄÕ±êÌâ like '%»¹ÒªÈ̶à¾Ã?·áÌïµÄ'ɲ³µ'Óë'»Ø¹é'%'
Õâ¾ä²éѯÓï¾äתÒåÔõôдѽ£¬Çë´ó¼Ò°ïÏÂæ£¬Ð»ÁË
SQL code:
select * from export where Æ·ÅÆ is not nu ......

SqlServer ȨÏÞÎÊÌâ

ÈçºÎÉèÖÃsqlserverij¸öÓû§Ö»ÄÜÔËÐд洢¹ý³Ì£¬±ðµÄʲôȨÏÞ¶¼Ã»ÓÐ

GRANT all on dbo.proc_1 to user

http://wz.cnblogs.com/question/7030/


SQL code:
use testdb
go
--ÐÂÔöÓû§
exec sp_addlogin ......

sqlserver ´æ´¢¹ý³ÌÖе÷ÓÃ×Ô¶¨Ò庯Êý

º¯ÊýʵÏÖÈçÏ£º
GO
CREATE FUNCTION dbo.fn_Sum(@code varchar(50))
RETURNS varchar(8000)
AS
BEGIN
DECLARE @values varchar(8000)
SET @values = ''
SELECT @values = @values + ',' + values from test ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ