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 answer to this is, of course, going to vary from drink to drink, but when we are estimating there are a few things to consider. The average cocktail uses: 1  1 1/2 ounces (the average shot) of a base liquor (i.e. vodka, gin, rum, etc.) . 2  Liqueurs typically use 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 typically requires 4 to 6 ounces.ith this information you can estimate how many bottles of each liquor you will need to create a certain number of drinks. This first chart represents popular bottle sizes in both metric and U.S. measurements and the average number of standard shots each will produce.