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
create PROCEDURE pagelist
@tablename nvarchar(50),
@fieldname nvarchar(50)='*',
@pagesize int output,--ÿҳÏÔʾ¼Ç¼ÌõÊý
@currentpage int output,--µÚ¼¸Ò³
@orderid nvarchar(50),--Ö÷¼üÅÅÐò
@sort int,--ÅÅÐò·½Ê½£¬1±íʾÉýÐò£¬0±íʾ½µÐòÅÅÁÐ
......
£¨1£© Ñ¡Ôñ×îÓÐЧÂʵıíÃû˳Ðò(Ö»ÔÚ»ùÓÚ¹æÔòµÄÓÅ»¯Æ÷ÖÐÓÐЧ)£º
ORACLEµÄ½âÎöÆ÷°´ÕÕ´ÓÓÒµ½×óµÄ˳Ðò´¦Àífrom×Ó¾äÖеıíÃû£¬from×Ó¾äÖÐдÔÚ×îºóµÄ±í(»ù´¡±í driving table)½«±»×îÏÈ´¦Àí£¬ÔÚfrom×Ó¾äÖаüº¬¶à¸ö±íµÄÇé¿öÏÂ,Äã±ØÐëÑ¡Ôñ¼Ç¼ÌõÊý×îÉٵıí×÷Ϊ»ù´¡±í¡£Èç¹ûÓÐ3¸öÒÔÉϵıíÁ¬½Ó²éѯ, ÄÇ ......
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 ......
¹¦ÄÜ£º·µ»Ø×Ö·û¡¢¶þ½øÖÆ¡¢Îı¾»òͼÏñ±í´ïʽµÄÒ»²¿·Ö
Óï·¨£ºSUBSTRING ( expression, start, length )
SQL ÖÐµÄ substring º¯ÊýÊÇÓÃÀ´×¥³öÒ»¸öÀ¸Î»×ÊÁÏÖÐµÄÆäÖÐÒ»²¿·Ö¡£Õâ¸öº¯ÊýµÄÃû³ÆÔÚ²»Í¬µÄ×ÊÁÏ¿âÖв»ÍêȫһÑù£º
²ÎÊý£º
expression ×Ö·û´®¡¢¶þ½øÖÆ×Ö·û´®¡¢Î ......