Expressions can also use variables. Variables have a Variant data type and the expression evaluator converts the data type of a variable from a Variant subtype to an Integration Services data type before it evaluates the expression. Variables can use only a subset of the Integration Services data types.
The total COST of each cocktail using 2oz whiskey per drink and using the higher estimate of $90 to buy all ingredients, the startup cost comes out to about $7.5/cocktail. After that first bottle of whiskey is gone, you will surely have PLENTY of the other ingredients left.
If we assume a standard 1.5-ounce shot, that means you get 22.5 Stoli-and-whatevers per bottle, for a price of $1.22 per serving. The bar charges $6.75 per dose, so when dealing with Russians or other masochists, the liquor cost is a mere 18 percent. But most people don't drink shots of vodka. All the other crap that goes into a standard mixed drinkâsoda, ice, straws, lime wedgesâis cheap for the bar but free to the consumer.