How to select only numeric values

Table1

id

```01
wire
02
steve
ram123
03
....
```

from the table1 i want to select only numeric values, It should not display alphanumeric values like (ram123)

Expected Output

```01
02
03
....
```

How to make a query for this condition

Try ISNUMERIC

```SELECT *
FROM Table1
WHERE ISNUMERIC([ID]) = 1
```

SQLFiddle Demo

```SELECT * FROM @Table
WHERE Col NOT LIKE '%[^0-9]%'
```

Just want to note that IsNumeric() has some limitations. For example all of the below will return 1.

```SELECT ISNUMERIC(' - ')
SELECT ISNUMERIC(' , ')
SELECT ISNUMERIC('\$')
SELECT ISNUMERIC('10.5e-1')
SELECT ISNUMERIC('\$12.09')
```

So if you only looking to select numbers ONLY, then something like this could work:

```create function [dbo].[IsNumbersOnly](@strSrc as varchar(255))
returns tinyint
as
begin

return isnumeric(replace(replace(replace(replace(replace(replace(replace(replace(replace(replace(
@strSrc, '\', 'x'), '-', 'x'), ',', 'x'), '+', 'x'), '\$', 'x'), '.', 'x'), 'e', 'x'), 'E', 'x'),
char(9), 'x'), char(0), 'x'))
end
```

``` SELECT column1 FROM table where ISNUMERIC(column1) = 1
```

You can use translate and replace function together. first translate the numbers to 0 then replace them with null and return only null values can solve the problem.

```select column from table where  replace(translate(column,'0123456789','0000000000'),'0','') is null
```