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Supported SQL Functionality : SQL Expressions : Operators : Arithmetic Operators
  

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Arithmetic Operators
You can use an arithmetic operator in an expression to negate, add, subtract, multiply, and divide numeric values. The result of this operation is also a numeric value. The + and - operators are also supported in date/time fields to allow date arithmetic. The following table lists the supported arithmetic operators.
Table 31. Arithmetic Operators
Operator
Purpose
Example
+ -
Denotes a positive or negative expression. These are unary operators.
SELECT * FROM emp WHERE comm = -1
* /
Multiplies, divides. These are binary operators.
UPDATE emp SET sal = sal + sal * 0.10
+ -
Adds, subtracts. These are binary operators.
SELECT sal + comm FROM emp WHERE empno > 100