Posted by: mero_naam_ho November 14, 2015
need statement without FROM clause
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Here's the fiddle

http://sqlfiddle.com/#!6/9eecb7db59d16c80417c72/187


DECLARE
@PRICE INT = 100,
@TAXRATE FLOAT = 0.07,
@TAXAMOUNT FLOAT
SET @TAXAMOUNT = @PRICE * @TAXRATE
SELECT
@PRICE AS 'PRICE',
@TAXRATE AS 'TAX RATE' ,
@TAXAMOUNT AS 'TAX AMOUNT',
@PRICE + @TAXAMOUNT 'TOTAL PRICE'


Hope it helps
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