Question

我正在编写sp以在asp.net页面中使用，该页面显示gridview（具有多个页面）和select查询的复选框。但是它在EXEC(@sql)上给出了语法错误，在使用WITH...AS后我是否可以在if中调用它？

SET @sql=@sql +' ' +' FROM DATASET WHERE (RowId BETWEEN (@page - 1) * @pageSize AND (@page) * @pageSize)
    OR (@page IS NULL)'


if @filter='pt'
    BEGIN
    WITH DataSet AS
    (
        SELECT TOP 100 PERCENT
            row_number() over(order by date desc) as 'RowId'
            , convert(varchar(10), date 105) AS 'date'
            , product1
            , product2
            , product3
            , product4
            , Y
            , N
            FROM (select date
        , count(case when product='product1' then 1 else null end) as 'product1'
        , count(case when product='product2' then 1 else null end) as 'product1'
        , count(case when product='product3' then 1 else null end) as 'product1'
        , count(case when onsale='Y' then 1 else null end) as 'Y'
        , count(case when onsale='N' then 1 else null end) as 'N'
        from dbo.vwSales
        group by date) as o
        WHERE
            (date BETWEEN @from AND @to)    
    )
    EXEC (@sql)
    END

Answer 1

你必须在Exec命令的变量中包含整个SQL，从＆＃34;开始......＆＃34;。

Answer 2

除非我们在这里没有看到，否则没有理由在这里执行动态SQL。编写动态SQL并使用EXEC执行它通常是一种反模式，因为它使您可以编写一些带有安全问题的低效代码。

你能跑......

WITH DataSet AS
    (
        SELECT TOP 100 PERCENT
            row_number() over(order by date desc) as 'RowId'
            , convert(varchar(10), date 105) AS 'date'
            , product1
            , product2
            , product3
            , product4
            , Y
            , N
            FROM (select date
        , count(case when product='product1' then 1 else null end) as 'product1'
        , count(case when product='product2' then 1 else null end) as 'product1'
        , count(case when product='product3' then 1 else null end) as 'product1'
        , count(case when onsale='Y' then 1 else null end) as 'Y'
        , count(case when onsale='N' then 1 else null end) as 'N'
        from dbo.vwSales
        group by date) as o
        WHERE
            (date BETWEEN @from AND @to)    
    )
FROM DATASET WHERE (RowId BETWEEN (@page - 1) * @pageSize AND (@page) * @pageSize)
    OR (@page IS NULL)

另请注意，“TOP 100％”是不必要的。

存储过程中EXEC（@sql）中的语法错误

2 个答案: