Question

如何按查询计算组返回的实际记录数

例如

-- Exec SP_GET_ITEM_STOCK 0,10,NULL,'Charger'
ALTER PROCEDURE [dbo].[SP_GET_ITEM_STOCK]
    @startRowIndex int ,
    @pageSize int,
    @ItemID bigint = null,
    @ItemName varchar(250) = null
AS
BEGIN
    DECLARE @SQL varchar(MAX)
    DECLARE @SQLWHERE varchar(MAX)

    SET @SQL = 'WITH DATA AS (
                select 
                    ROW_NUMBER() OVER (ORDER BY Item_ID) ''SNo'',
                    Item_ID,
                    Item_Name,
                    SUM(Inward) as Total_Purchase,
                    SUM(Outward) as Total_Sale,
                    (sum(Inward) - sum(outward))as Balance_Stock'
    Set @SQLWHERE = ' from Item_Ledger_Details where Active = 1'

    IF @ItemID IS NOT NULL and @ItemID <> ''
    SET @SQLWHERE = @SQLWHERE + ' and Item_ID = ' + CONVERT(varchar,@ItemID) + ''

    IF @ItemName IS NOT NULL and @ItemName <> ''
    SET @SQLWHERE = @SQLWHERE + ' and Item_Name like ''%' + @ItemName + '%'''

    SET @SQL = @SQL + @SQLWHERE + ' group by Item_ID,Item_Name) SELECT * FROM DATA WHERE SNo BETWEEN ' + CONVERT(Varchar,@startRowIndex) + ' AND ' + CONVERT(Varchar,@startRowIndex+@pageSize) + ' ORDER BY SNo'
    EXEC(@SQL +';SELECT COUNT(*) ''Count'' '+ @SQLWHERE)
    print(@SQL)
END

返回：

我需要计算上面的第一个结果记录，以得到第二个结果中的1 + 1 = 2，其中我得到计数= 48

Answer 1

继续Anand回答。我刚刚修改了他的查询。下面的查询解决了我的答案。但我认为这个查询可能需要优化。

-- SP_GET_ITEM_STOCK 0,10,NULL,NULL
ALTER PROCEDURE [dbo].[SP_GET_ITEM_STOCK]
@startRowIndex int,
@pageSize int,
@ItemID bigint = null,
@ItemName varchar(250) = null
AS
    BEGIN
    Declare @Temp Table (
    SNo bigint,
    Item_ID bigint,
    Item_Name varchar(max),
    Total_Purchase money,
    Total_Sale money,
    Balance_Stock money
);
WITH DATA AS (
select 
    ROW_NUMBER() OVER (ORDER BY Item_ID) as SNo,
    Item_ID,
    Item_Name,
    SUM(Inward) as Total_Purchase,
    SUM(Outward) as Total_Sale,
    (sum(Inward) - sum(outward))as Balance_Stock
from Item_Ledger_Details
where Active = 1
and (coalesce(@ItemID, '') = '' or Item_ID = CONVERT(varchar,@ItemID))
and ( coalesce(@ItemName, '') = '' or  Item_Name like '%' + @ItemName + '%')
group by Item_ID,
    Item_Name
)
insert into @Temp
SELECT * 
FROM DATA 
WHERE SNo BETWEEN @startRowIndex AND @startRowIndex+@pageSize
ORDER BY SNo

select * from @temp
    SELECT COUNT(*) as Count from @temp
END

Answer 2

在那里，我把它清理干净了：

ALTER PROCEDURE [dbo].[SP_GET_ITEM_STOCK]
    @startRowIndex int,
    @pageSize int,
    @ItemID bigint = null,
    @ItemName varchar(250) = null
AS
BEGIN

;WITH DATA AS (
    select 
        ROW_NUMBER() OVER (ORDER BY Item_ID) as SNo,
        Item_ID,
        Item_Name,
        SUM(Inward) as Total_Purchase,
        SUM(Outward) as Total_Sale,
        (sum(Inward) - sum(outward))as Balance_Stock
    from Item_Ledger_Details
    where Active = 1
    and (coalesce(@ItemID, '') = '' or Item_ID = CONVERT(varchar,@ItemID))
    and ( coalesce(@ItemName, '') = '' or  Item_Name like '%' + @ItemName + '%')
    group by Item_ID,
        Item_Name
)

SELECT * 
FROM DATA 
WHERE SNo BETWEEN @startRowIndex AND @startRowIndex+@pageSize
ORDER BY SNo

SELECT COUNT(*) as Count
from DATA

END

计算按组查询返回的记录数的正确方法是什么

2 个答案: