SQL£ºÈçºÎ°Ñ¶àÐвéѯ½á¹û£¬×÷ΪһÐзµ»Ø
CREATE FUNCTION dbo.UF_GetInvoiceSerials( @bizCode VARCHAR(10))
RETURNS VARCHAR(100)
AS
BEGIN
DECLARE @ret AS VARCHAR(1000)
SELECT @ret=Coalesce(@ret + ', ','') +
CASE e.ID
WHEN '1' THEN c.InvoiceNo
WHEN '2' THEN d.ExpenseNO
ELSE 'N/A'
END
from dbo.Business a WITH(NOLOCK)
LEFT JOIN dbo.Asset_Card b WITH(NOLOCK)
ON b.BusinessID = a.ID
LEFT JOIN dbo.Equipment_Card c WITH(NOLOCK)
ON c.Asset_CardID = b.ID
LEFT JOIN dbo.FurnitureCard d WITH(NOLOCK)
ON d.Asset_CardID = b.ID
LEFT JOIN dbo.Assert_Type e WITH(NOLOCK)
ON e.ID = b.Assert_TypeID
WHERE a.BusinessCode=@bizCode
RETURN Isnull(@ret,'N/A')
END
+++++++++++++++++++++++++++++++++++++++++
Ïà¹ØÎĵµ£º
SQLÓïÑÔ¿ìËÙÈëÃÅ
ä½ Ïª ɳ
Àî璟
ÊÖ¾íÕæÖéÉÏÓñ¹³,ÒÀǰ´ººÞËøÖØÂ¥, ·çÀïÂ仨ËÊÇÖ÷, Ë¼ÓÆÓÆ
ÇàÄñ²»´«ÔÆÍâÐÅ,¶¡Ïã¿Õ½áÓêÖгî, »ØÊ×Â̲¨Èý³þĺ, ½ÓÌìÁ÷
SQLÓïÑÔ¿ìËÙÈëÃÅ
SQLÊÇÓ¢ÎÄStructured Query LanguageµÄËõд£¬Òâ˼Ϊ½á¹¹»¯²éѯÓïÑÔ¡£SQLÓïÑÔµÄÖ÷Òª¹¦ÄܾÍÊÇͬ¸÷ÖÖÊý¾Ý¿â½¨Á¢ÁªÏµ£¬½øÐйµÍ¨¡£°´ÕÕA ......
session״̬£º
STATUS VARCHAR2(8) Status of the session:
ACTIVE - Session currently executing SQL
INACTIVE - sql¼°ÆäsessionûÓÐÊÍ·Å»òÕý³£Í˳ö......
KILLED - Session marked to be killed
CACHED - Session temporarily cached for use by Oracle*XA
SNIPED - Session inactive, waiting on the clie ......
Ò»¸ösqlÓï¾ä£ºÒ»¸ö±ítestÓÐËĸö×Ö¶Îid,a,b,c,Èç¹û±íÖеļǼÓÐÈý¸ö×Ö¶Îa,b,c¶¼ÏàµÈ£¬Ôò˵Ã÷ÕâÌõ¼Ç¼ÊÇÏàͬµÄ£¬ÇóÏàͬµÄ¼Ç¼µÄ¸öÊý ¡£
select a,b,c,count(*) from (select c.a,c.b,c.c from test c) having count(*) >= 2 group by a,b,c
»òÕß
select zdbh,tdzl,zdmj,count(*) from ecaadmin.zdsx group by zdbh ......
ÎÄÕÂÀ´Ô´£ºHttp://www.simple-talk.com
ÔÎĵØÖ·£ºhttp://www.simple-talk.com/sql/learn-sql-server/managing-transaction-logs-in-sql-server/
Ô×÷ÕߣºRobert Sheldon
·Ò룺Èý½úÒ»Ö¦»¨
ÒëÎÄÔµØÖ·£ºhttp://prj.souty.cn/Admin/Knowledges/ShowKnowledge.aspx?id=44dbde74-d2c5-41a5-a8e9-375ba7103025
ÔÚ SQL Serv ......
Ò». ²éÕÒÖØ¸´¼Ç¼
1. ²éÕÒÈ«²¿Öظ´¼Ç¼
Select * from ±í Where ÖØ¸´×Ö¶Î In (Select ÖØ¸´×Ö¶Î
from ±í Group By ÖØ¸´×Ö¶Î Having Count(*)>1)
2. ¹ýÂËÖØ¸´¼Ç¼(Ö»ÏÔʾһÌõ)
Select * from HZT Where ID In (Select Max(ID) from HZT Group By Title)
×¢£º´Ë´¦ÏÔʾID×î´óÒ»Ìõ¼Ç¼
¶þ. ɾ³ýÖØ¸´¼Ç ......