You write a query with a simple mathematical calculation that involves adding a column value multiplied by another column value minus a third column value. You get unexpected results. What should you consider to resolve the issue?
(Precedence sets the default order of processing. Multiplication and division are performed before addition and subtraction. Use parentheses to control precedence. Precedence is also used in data conversion. A character will be implicitly converted to an integer data type if both are involved in the query. This can lead to unexpected results. Try this query: select ‘2’ + 2 + 2.0. The result should be 6.0. Although you started with a character and added an integer and then added a floating-point number, you ended up with a floating point. Is that what you intended? Is this what you expected?)