Extending Informix-Universal Server: Data Types
Chapter 3: Creating User-Defined Casts
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Creating User-Defined Casts
What Is a User-Defined Cast?
How Do You Create a User-Defined Cast?
Choosing the Kind of User-Defined Cast
Implicit Cast
Explicit Cast
Choosing the Cast Mechanism
A Straight Cast
A Casting Function
Defining the Direction of the Cast
Dropping a Cast
Extending Informix-Universal Server: Data Types
, version 9.1
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