есть встроенный sql udf
При вызове с переменной
DECLARE @COMNO CHAR(3), @CUNO VARCHAR(6)
SELECT @COMNO='020',@CUNO ='000022'
select * from ftItemsOfCustomer(@COMNO,@CUNO)
занимает 9 секунд,
ГДЕ КАК
select * from ftItemsOfCustomer'020','000022')
ТОЛЬКО ВТОРОЙ!
- ПОЧЕМУ И КАК МОЖНО РАЗРЕШИТЬ ЭТО
ВЫПОЛНИТЬ С РАВНЫМ ВРЕМЯ ОТВЕТА, КОГДА
ПЕРЕМЕННЫЕ, ИСПОЛЬЗУЕМЫЕ ВМЕСТО ЛИТЕРАТУРЫ
Вот функция ..
GO
/****** Object: UserDefinedFunction [dbo].[ftItemsOfCustomer] Script Date: 02/24/2010 10:23:25 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--
--ALTER FUNCTION [dbo].[ftItemsOfCustomer](@COMNO CHAR(3),@T$CUNO CHAR(6)) RETURNS TABLE AS RETURN
--/*--------------------------------------------------------------------------
Declare @t$cuno char(6),@comno char(3),@ovrideQtyDisc bit;select @t$cuno='000022',@comno='020',@ovrideQtyDisc=1;
select @t$cuno='000310',@comno='020'
select @t$cuno='200252'
select @t$cuno='000680'
--select @t$cuno='000694'
--SELECT T$CPLS FROM TTCCOM010NNN WHERE T$CUNO=@T$cuno and comno=@comno
-- 1 Customer /item discount---------(30)
-- 2 customer / pricegroup/discount--(31)
-- 3 customer /discount -------------(31)
-- 4 price list /item ----(32) -- no discount here only list pirce and pricelist
-- 5 pricelist /price group/discount-(33)
-- 6 pricelist /discount-------------(33)
----------------------------------------------------------------------------*/
--1). 030 CUSTOMER AND ITEM FOR DISCOUNT
--2). 031 CUSTOMER AND PRICEGROUP
--3). 031 Customer only - blanket - not implemented (as of 24th Feb 2010)
--4). 033 PRICELIST and priceGroup
--5). 033 pricelist and priceGroup=null
--1) 33 for Discounts via cpgs DISCOUNT (G) 33g.t$cpgs = itm.cpgs and 33g.t$cpls=
--2) 32 for price List & item for DISCOUNT (P)
--3) 32 for item (no Price List) for PRICE (I)
--4) 30 for customer & Item For DISCOUNT (C)
-- Discount prescedance 1=C, 2=P ,3=G
SELECT distinct
ItemCode = P.T$ITEM
,UPC_Code = U.UPC
,Description = U.t$dsca
,ciDesc = T.t$dsca
,ListPrice = I.t$Pric
,Multiplier = Isnull(convert(decimal(6,4),1.0000-(COALESCE(NULLIF(C.T$DISC,0.000),NULLIF(CPG.T$DISC,0.000),NULLIF(P.T$DISC,0.000),NULLIF(G.T$DISC,0.000),NULLIF(NOPG.T$DISC,0.000))/100.000)),1.000)
--,NetPrice = Round(I.t$pric*Convert(decimal(10,3),1.00-(COALESCE(NULLIF(C.T$DISC,0.00),NULLIF(P.T$DISC,0.00),NULLIF(G.T$DISC,0.00))/100.00)),0)
,NetPrice = Convert(decimal(10,2),Round(I.t$pric*Isnull(Convert(decimal(10,4),1.00-(COALESCE(NULLIF(C.T$DISC,0.00),NULLIF(CPG.T$DISC,0.00),NULLIF(P.T$DISC,0.00),NULLIF(G.T$DISC,0.00),NULLIF(NOPG.T$DISC,0.00))/100.00)),1),2))
,ShippingIndicator = U.T$ship
,Weight = T.t$wght
,t$cpgs = T.t$cpgs
,GDISC=G.t$dISC
,Discount = COALESCE(NULLIF(C.T$DISC,0.00),NULLIF(CPG.T$DISC,0.00),NULLIF(P.T$DISC,0.00),NULLIF(G.T$DISC,0.00))
,Gdisc = g.t$disc
,pdisc = p.t$disc
,cdisc = c.t$disc
,cpgDisc = cpg.t$disc
,DiscountSource = CASE COALESCE(NULLIF(C.T$DISC,0.00),NULLIF(CPG.T$DISC,0.00),NULLIF(P.T$DISC,0.00),NULLIF(G.T$DISC,0.00),NULLIF(noPg.T$disc,0.0))
WHEN C.T$DISC THEN 'Disc(30)[cuno,item]'
WHEN P.T$DISC THEN 'DISC(32)[CPGS]'
WHEN G.T$DISC THEN 'DISC(33)[CPLS,CPGS]'
WHEN NOPG.T$DISC THEN 'DISC(33)[CPLS]'
WHEN CPG.T$DISC THEN 'DISC(31)'
ELSE '?'
END
,cpls = P.t$cpls
,t$QANP = P.t$QANP
,Ccuno = com.t$cuno
,noPg.*
FROM TTCCOM010nnn COM WITH (iNdex(IX_COMNO_TTCCOM010NNN))
JOIN TTDSLS032nnn P WITH (INDEX(IX_T$CPLS_TTDSLS032NNN)) ON P.T$CPLS = COM.T$CPLS
JOIN TTDSLS032nnn I WITH (INDEX(IX_T$ITEM_TTDSLS032NNN),INDEX(IX_COMNO_TTDSLS032NNN)) ON I.t$item = P.t$item
AND i.comno = p.comno
AND 1 = dbo.fnIsDateInRange(i.t$stdt,i.t$tdat)
AND i.t$cpls = ''
LEFT JOIN TTDSLS030nnn C WITH (INDEX(IX_T$ITEM_TTDSLS030NNN),INDEX(IX_COMNO_TTDSLS030NNN)) ON c.t$item = i.t$Item
AND c.Comno = i.comno AND c.t$cuno = @t$cuno
AND 1 = dbo.fnIsDateInRange(c.t$stdt,c.t$tdat)
JOIN TTIITM001nnn T WITH(INDEX(IX_T$ITEM_TTIITM001nnn),INDEX(IX_COMNO_TTIITM001NNN)) on t.t$item = p.T$item AND t.comno = p.Comno
LEFT JOIN TTDSLS033nnn G WITH(INDEX(IX_T$CPGS_TTDSLS033NNN)) ON G.t$CPGS = T.T$CPGS AND g.t$cpls = P.t$cpls and g.comno=@COMNO and g.t$cpgs is not null
--LEFT JOIN TTDSLS033nnn noPG WITH(INDEX(IX_T$CPLS_TTDSLS033NNN)) ON noPg.T$CPLS=com.T$CPLS AND noPG.t$cpgs is null
Left JOIN TTDSLS033nnn noPG WITH(INDEX(IX_T$CPLS_TTDSLS033NNN)) on noPG.t$cpgs is null
JOIN TTDUPC001nnn U WITH(INDEX(IX_T$ITEM_TTDUPC001NNN),index(ix_comno_TTDUPC001NNN)) ON U.t$item = p.t$item AND U.comno = p.Comno
--Limit Items to display based on Price list (introduced on 27th June 09)
JOIN ftItemGroupsOfCustomer(@comno,@t$cuno) pl ON PL.T$CPGS = T.T$CPGS AND PL.T$CUNO = @T$CUNO
AND PL.COMNO = @COMNO
Left JOIN TTDSLS031NNN CPG ON ltrim(rtrim(cpg.t$cpgs)) = pl.t$cpgs and cpg.t$cuno=pl.t$cuno and cpg.comno=pl.comno
AND 1 = dbo.fnIsDateInRange(cpg.t$stdt,cpg.t$tdat)
WHERE COM.COMNO = @COMNO AND COM.T$CUNO = @T$CUNO AND
P.t$cpls = COM.T$CPLS AND p.comno = @comno
AND noPg.comno = @comno and nopg.t$cpls = com.t$cpls
--noPg.t$cpls = com.t$cpls
AND 1 = dbo.fnIsDateInRange(p.t$stdt,p.t$tdat)