如何檢索總數

Question

這是在SQL Server中運行的存儲過程。我也想提出返回數據的總數。

ALTER PROCEDURE [dbo].[spManufacturerdata] 
AS 
BEGIN 
-- SET NOCOUNT ON added to prevent extra result sets from 
-- interfering with SELECT statements. 
SET NOCOUNT ON; 

-- Insert statements for procedure here 
SELECT [t1].[OEMName] AS [oem], [t1].[OemId] AS [id] 
FROM (
    SELECT DISTINCT [t0].[OEMName], [t0].[OemId] 
    FROM [dbo].[tblOEM] AS [t0] 
    WHERE [t0].[IsActive] = 1 
    ) AS [t1] 
order BY LOWER([t1].[OEMName]) 

END 

在此先感謝。

Answer 1

添加組通過：

SELECT COUNT([t1].[OemId]) AS TotalCount,[t1].[OEMName] AS [oem], [t1].[OemId] AS [id] 
FROM (
    SELECT DISTINCT [t0].[OEMName], [t0].[OemId] 
    FROM [dbo].[tblOEM] AS [t0] 
    WHERE [t0].[IsActive] = 1 
    ) AS [t1] 
GROUP BY [t1].[OEMName] , [t1].[OemId] 
order BY LOWER([t1].[OEMName]) 

Answer 2

我意識到，一個COUNT()或COUNT(DISTINCT)將只返回1的每一行。

如果您想對所有行的總數，那麼你想是這樣的：

SELECT t.OEMName as oem, t.OemId as id, 
     SUM(COUNT(*)) OVER() as total_rows, 
     COUNT(*) OVER() as total_combinations 
FROM dbo.tblOEM t 
WHERE t.IsActive = 1 
GROUP BY t.OEMName, t.OemId 
ORDER BY LOWER(t.OEMName); 

Answer 3

我不知道如果我理解你。 如果你想數由以前的選擇返回的總記錄，你只需要調用數（）：

SELECT COUNT([t1].[OEMName]) AS totalRowsInPreviuosQuery 
FROM (
    SELECT DISTINCT [t0].[OEMName], [t0].[OemId] 
    FROM [dbo].[tblOEM] AS [t0] 
    WHERE [t0].[IsActive] = 1 
) AS [t1] 

Answer 4

試試這個，

SELECT count(*) AS TotalCount 
FROM (
    SELECT DISTINCT [t0].[OEMName] 
     ,[t0].[OemId] 
    FROM [dbo].[tblOEM] AS [t0] 
    WHERE [t0].[IsActive] = 1 
    ) AS [t1]