The following works :
SELECT
CASE WHEN LEFT(Customer.StartDate, 2) = '98' THEN substring(convert(varchar(20),Customer.StartDate), 3, 2)
WHEN LEFT(Customer.StartDate, 2) = '99' THEN substring(convert(varchar(20),Customer.StartDate), 3, 2)
END AS LossMo
FROM Customer
The StartDate column is numeric (7,2).
Thanks.
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