Enables you to use same name for different subprograms inside p/l sql block, a subprogram or a package.
Requires formal parameters of subprogram to differ in number, order or data type.
Enables you to build more flexibility because a user or application is not restricted by specific data type or number of formal parameters.
Only local or packaged subprograms can be overloaded. You cannot overload stand-alone subprograms.
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