最新，准确的多层BOM展开sql代码

fateame

if exists (select * from dbo.sysobjects where>　　drop table [dbo].[bomt]　　GO
　　CREATE TABLE [dbo].[bomt] (
　　[parent_item] [nvarchar] (20) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[itemname] [nvarchar] (100) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[sl] [numeric](19, 6) NULL ,
　　[dw] [nvarchar] (8) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[ck] [nvarchar] (8) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[Price] [numeric](19, 6) NULL ,
　　[jghb] [nvarchar] (3) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[pl] [smallint] NULL ,
　　[ceci] [int] NULL ,
　　[fhf] [char] (1) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[scbs] [char] (2) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[path] [nvarchar] (800) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[gw] [nvarchar] (20) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[gx] [nvarchar] (20) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[cardcode] [nvarchar] (20) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[gysn] [nvarchar] (200) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[gc] [nvarchar] (20) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[hw] [nvarchar] (20) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[itemwm] [nvarchar] (200) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[tzs] [nvarchar] (100) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[scf] [nvarchar] (50) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[flf] [nvarchar] (10) COLLATE SQL_Latin1_General_CP850_CI_AS NULL ,
　　[mjg] [numeric](18, 6) NULL ,
　　[mje] [numeric](18, 6) NULL ,
　　[je] [numeric](18, 6) NULL ,
　　[xjg] [numeric](18, 6) NULL ,
　　[rjg] [numeric](18, 6) NULL ,
　　[rje] [numeric](18, 6) NULL ,
　　[bje] [numeric](18, 6) NULL
　　) ON [PRIMARY]
　　GO
　　－－－－－－－－－－－存储过程
　　CREATE proc BOM
　　@mj nvarchar(20)
　　as
　　begin
　　delete from bomt
　　declare @l int,@bz int
　　set @l=0
　　INSERT INTO bomt
　　(parent_item, itemname, itemwm,sl, dw, ck, Price, jghb, ceci, scbs, path)
　　select a.itemcode ,a.itemname,a.FrgnName,1,a.InvntryUom,a.DfltWH,a.LstEvlPric,'RMB',@l,a.TreeType,right(space(20)+a.itemcode,20)
　　from oitm a
　　where a.itemcode=@mj
　　----
　　set @bz=(select T1.Qauntity from oitt t1 where t1.code=@mj)
　　while @@rowcount>0
　　begin
　　set @l=@l+1
　　INSERT INTO bomt
　　(parent_item, itemname,itemwm, sl, dw, ck, Price, jghb, ceci, scbs, path,pl,fhf,hw)
　　select i.itemcode,i.itemname,i.FrgnName,a.Quantity, i.InvntryUom,a.Warehouse, a.Price, a.Currency,@l,i.TreeType,path+','+str(a.ChildNum,3)+right(space(20)+i.itemcode,20),a.PriceList,a.IssueMthd,i.sww
　　from (SELECT T1.Father, T1.ChildNum, T1.Code, T1.Quantity/ T0.Qauntity as Quantity , T1.Warehouse, T1.Price, T1.Currency, T1.PriceList, T1.Comment, T1.LogInstanc, T1.Uom,t1.IssueMthd FROM OITT T0  INNER JOIN ITT1 T1 ON T0.Code = T1.Father) a, bomt b,oitt c,oitm i
　　where  b.parent_item=c.code
　　and c.code=a.father
　　and a.code= i.itemcode
　　and b.ceci=@l-1
　　end