Arithmatic Operators in Oracle

Arithmetic operators in oracle can be used to add, subtract, multiply, divide and negate numeric values. The + and - arithmetic operators can also be used in datetime and interval arithmetics.

Based on the function we can divide the arithmetic operators in the following types.

1)Unary + and - Operator:
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•When + or - denote positive or negative expression then they are called unary operators.

•To represent positive or negative expression the + an - operator appear just before operand.

•Example of unary operator:

Select col1 from table1 where col1>-1;

Select col1 from table1 where -col1>1;

Here - operator used as unary operator.

2)Binary + and - Operator:
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•When + and - are used to add or subtract operands then they are called binary operators.

•They appear between operands.

•Example of binary operator:

Select col1 from table1 where col1+col2>10;

3)Binary * and / Operator:
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•The * operator is used to multiply operands and / is used for divide.

•Both are binary operators.

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