T-sql - determine if value is integer

Question

I want to determine if a value is integer (like TryParse in .NET). Unfortunatelly ISNUMERIC does not fit me because I want to parse only integers a

Answer 1

Case
When (LNSEQNBR / 16384)%1 = 0 then 1 else 0 end

Answer 2

Use PATINDEX

DECLARE @input VARCHAR(10)='102030.40'
SELECT PATINDEX('%[^0-9]%',RTRIM(LTRIM(@input))) AS IsNumber

reference http://www.intellectsql.com/post-how-to-check-if-the-input-is-numeric/