如何篩選列？

Question

使用SQL Server 2005

我要過濾的列，其中列值不等於數字

表1

Status 

010203 
Absent 
231415 
Ramesh 
Suresh 

..., 

我想從狀態欄只得到名稱，如

試過查詢

Select Status from table1 where status <> 'absent' and status <> numecivalue 

如何提到的狀態<> numericvalue

期望輸出

Table 

Status 

Ramesh 
Suresh 
..., 

需要查詢的幫助。

Answer 1

嘗試ISNUMERIC(expression)。

Answer 2

用途：

SELECT t.status 
    FROM table1 t 
WHERE t.status != 'absent' 
    AND ISNUMERIC(t.status) != 1 

參考：ISNUMERIC

Answer 3

SELECT 
    status 
FROM 
    table1 
WHERE 
    status <> 'absent' AND 
    ISNUMERIC(status) <> 1 

Answer 4

看一看這個weblos ..............

http://weblogs.sqlteam.com/mladenp/archive/2007/10/18/SQL-Server-Filtering-Numeric-data-from-a-character-based-column.aspx

CREATE FUNCTION dbo.IsNumericEx(@value nvarchar(max)) 
RETURNS BIT 
AS 
BEGIN 
     DECLARE @isInt BIT 

     SELECT @isInt = 1 
     WHERE @value NOT LIKE '%[^0-9.-]%' 
       AND LEN(REPLACE(@value, '.', '')) >= LEN(@value) - 1 
       AND CHARINDEX('-', @value) IN (0, 1) 
       AND CHARINDEX('-', @value, 2) = 0 

     RETURN ISNULL(@isInt, 0) 
END 
GO 

DECLARE @t1 TABLE (title varchar(20)) 
INSERT INTO @t1 
SELECT '123d456' UNION ALL 
SELECT '12 3456' UNION ALL 
SELECT '123456' UNION ALL 
SELECT '1234-56' UNION ALL 
SELECT '123456-' UNION ALL 
SELECT '-123456' UNION ALL 
SELECT '-123-456' UNION ALL 
SELECT 'dddfaf56' UNION ALL 
SELECT '5532.673' UNION ALL 
SELECT '5532673.' UNION ALL 
SELECT '.5532.673' 

SELECT * 
FROM  @t1 
WHERE dbo.IsNumericEx(title) = 0 

SELECT * 
FROM  @t1 
WHERE dbo.IsNumericEx(title) = 1 

GO 
DROP FUNCTION dbo.IsNumericEx 

Answer 5

您可以使用RegE x在您的查詢。

http://msdn.microsoft.com/en-us/magazine/cc163473.aspx