下面的文章主要介绍的是实现SQL Server传送数组参数变通实际操作办法，最近一直在做有关Dnn模块的开发这一项目,在其实际操作的过程中有碰到这么的一个问题,即需要同时插入N条数据,不想在程序里控制,但是SQL Sever又不支持数组参数。
所以只能用变通的办法了.利用SQL Server强大的字符串处理传把数组格式化为类似"1,2,3,4,5,6"。然后在存储过程中用SubString配合CharIndex把分割开来.
详细的存储过程
CREATE PROCEDURE dbo.ProductListUpdateSpecialList @ProductId_Array varChar(800), @ModuleId int AS DECLARE @PointerPrev int DECLARE @PointerCurr int DECLARE @TId int Set @PointerPrev=1 set @PointerCurr=1 begin transaction Set NoCount ON delete from ProductListSpecial where ModuleId=@ModuleId Set @PointerCurr=CharIndex(',',@ProductId_Array,@PointerPrev+1) set @TId=cast(SUBSTRING(@ProductId_Array,@PointerPrev,@PointerCurr-@PointerPrev) as int) Insert into ProductListSpecial (ModuleId,ProductId) Values(@ModuleId,@TId) SET @PointerPrev = @PointerCurr while (@PointerPrev+1 < LEN(@ProductId_Array)) Begin Set @PointerCurr=CharIndex(',',@ProductId_Array,@PointerPrev+1) if(@PointerCurr> 0) Begin set @TId=cast(SUBSTRING(@ProductId_Array,@PointerPrev+1,@PointerCurr-@PointerPrev-1) as int) Insert into ProductListSpecial (ModuleId,ProductId) Values(@ModuleId,@TId) SET @PointerPrev = @PointerCurr End else Break End set @TId=cast(SUBSTRING(@ProductId_Array,@PointerPrev+1,LEN(@ProductId_Array)-@PointerPrev) as int) Insert into ProductListSpecial (ModuleId,ProductId) Values(@ModuleId,@TId) Set NoCount OFF if error=0 begin commit transaction end else begin rollback transaction end GO
网友Bizlogic对此的改进方法:
给SQL Server传送数组参数的变通办法中应该用SQL2000 OpenXML更简单，效率更高，代码更可读：
CREATE Procedure [dbo].[ProductListUpdateSpecialList] ( @ProductId_Array NVARCHAR(2000), @ModuleId INT ) AS delete from ProductListSpecial where ModuleId=@ModuleId -- If empty, return IF (@ProductId_Array IS NULL OR LEN(LTRIM(RTRIM(@ProductId_Array))) = 0) RETURN DECLARE @idoc int EXEC sp_xml_preparedocument @idoc OUTPUT, @ProductId_Array Insert into ProductListSpecial (ModuleId,ProductId) Select @ModuleId,C.[ProductId] FROM OPENXML(@idoc, '/Products/Product', 3) with (ProductId int ) as C where C.[ProductId] is not null EXEC sp_xml_removedocument @idoc
上述的相关内容就是对SQL Server传送数组参数的变通办法的描述，希望会给你带来一些帮助在此方面。