In oracle an operator manipulates data items and return a result after manipulation. The data items on which it operates are called operands. Based on the operator function it can be divided into following types.
1)User-Defined Operators: Discussed in
2)Arithmetic Operators: Discussed in Arithmatic Operators
3)Concatenation Operator: Discussed in Concatenation Operator.
4)Hierarchical Query Operators: Discussed in
5)Set Operators: Discussed in
6)Multiset Operators: Discussed in
An operator can appear before an operand, after an operand or between operands.
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