在存储过程中将nvarchar类型转换为数字sql

Question

嗨，我有这个SP。

USE [Invoice]
GO
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER OFF
GO
ALTER PROCEDURE [dbo].[uspInvoiceLines]
( @InInvoiceNbr int
 ,@InLinesPerPage   int
)
AS
DECLARE @TotalRows int
DECLARE @Remainder int
DECLARE @NumPages int
DECLARE @NextPageRows int
set @TotalRows= 0
SELECT 
 ROW_NUMBER() OVER( ORDER BY CONVERT(INT, InvProduct))as InvoiceRow,
                                             CoID,
                                             InvNo,
                                             InvProduct,
                                             InvDesc,
                                             InvQuantity,
                                             InvUOM,
                                             InvUnitPrice,
                                             InvAmt

into #tempInvoice
FROM Invoice_Products



SET @TotalRows= @@ROWCOUNT
IF @TotalRows=0
    BEGIN
        WHILE @TotalRows < @InLinesPerPage -- Add Blank Rows will generate blank invoice.
            BEGIN
                SET @TotalRows= @TotalRows+1
                INSERT  #tempInvoice
                 (InvoiceRow,
                 CoID,
                 InvNo,
                 InvProduct,
                 InvDesc,
                 InvQuantity,
                 InvUOM,
                 InvUnitPrice,
                 InvAmt
                 )
                 VALUES 
                 (@TotalRows
                 ,@InInvoiceNbr
                 ,''
                 ,''
                 ,0
                 ,0
                 ,0
                 ,''
                 ,0
                 ,0)
            END
    END
ELSE
    BEGIN
        SET @Remainder =  @TotalRows%@InLinesPerPage -- get remainder
        IF @Remainder !=0 
        BEGIN
            -- Get the current page increase by 1 becasue we have a remainder.
            SET @NumPages = @TotalRows/@InLinesPerPage  +1 
            SET @NextPageRows = @NumPages * @InLinesPerPage
            WHILE @TotalRows < @NextPageRows -- Add Blank Rows
            BEGIN
                SET @TotalRows= @TotalRows+1
                INSERT  #tempInvoice
                (InvoiceRow,
                 CoID,
                 InvNo,
                 InvProduct,
                 InvDesc,
                 InvQuantity,
                 InvUOM,
                 InvUnitPrice,
                 InvAmt
                )
                VALUES 
                (@TotalRows
                ,@InInvoiceNbr
                ,''
                ,''
                ,0
                ,0
                ,0
                ,''
                ,0,
                0)
            END
        END
    END
SELECT * from #tempInvoice order by InvoiceRow asc
return

问题在于，在计算行号时， InvProduct 是nvarchar数据类型。所以，当我在RDL文件中使用它时，我遇到了错误。 我可以有一些想法/见解如何解决这个问题？

P.S我必须使用此SP才能显示发票类型报告，方法如下： https://www.intertech.com/Blog/use-sql-server-reporting-services-to-generate-an-invoice-document/

Answer 1

您能否确认 InvDesc 是nvarchar数据类型还是int类型？如果是nvarchar数据类型，请使用＆＃39;＆＃39;而不是0。