Extending INFORMIX-Universal Server: User-Defined Routines
Chapter 2: Routine Overloading and Routine Resolution
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Routine Overloading and Routine Resolution
In This Chapter
What Is Routine Overloading?
The Routine Signature
Specifying a Routine During Creation
Using the Optional Specific Name
Specifying Overloaded Routines During Invocation
The Routine-Resolution Process
Candidate List of Routines
Precedence List of Data Types
Routine Resolution Within a Type Hierarchy
Routine Resolution with Distinct Data Types
Precedence List for Built-In Data Types
Routine Resolution with Casts
Null Arguments in Overloaded Routines
Built-In SQL Functions That You Can Overload
Operator-to-Function Binding
Extending INFORMIX-Universal Server: User-Defined Routines
, version 9.1
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