sql wo ist keine nummer
SELECT CustomerId FROM CUSTOMER_TABLE
WHERE CustomerId ISNUMERIC(CustomerId) = 0
-- if you want to get only number try to change 0 to 1
peamdev
SELECT CustomerId FROM CUSTOMER_TABLE
WHERE CustomerId ISNUMERIC(CustomerId) = 0
-- if you want to get only number try to change 0 to 1
SELECT ISNUMERIC(250) AS Result;