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.
The average cocktail uses: 1  1 1/2 ounces (the average shot) of a base liquor (i.e. vodka, gin, rum, etc.). 2  Liqueurs are typically poured at 1/2 to 3/4 ounce. 3  Accent juices (i.e. lemon and lime) typically use 1/4 to 1/2 ounce. 4  Filling a highball or tall drink with juice or soda often requires 4 to 6 ounces.