May 2020
Beginner
564 pages
14h 9m
English
Content preview from Learn SQL Database Programming
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Operator precedence
An important concept in mathematics is operator precedence, which means the order of operations. Precedence will perform higher-level mathematical operations first so that multiplication and division are done before addition and subtraction. You can add parentheses around calculations to impact the precedence—for example, 1+2*3 = 7, but if you meant to add 1 and 2 first, then multiply by 3, you would need to add parentheses, like so: (1+2)*3, which now equals 9 instead. The precedence of the mathematical operators we've covered is as follows: parentheses, multiplication/division, then addition/subtraction.
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