Home |
Previous Page | Next Page Creating User-Defined Routines > Extending Data Types >
This chapter describes the following ways to extend data
types with C user-defined routines (UDRs):
- Create an opaque data type with the C language
- Create a distinct data type
- Write operator-class support functions
- Write optimization functions, including selectivity functions,
cost functions, negator functions, and user-defined statistics functions
Tip:
For general information about the creation of an opaque
type and its support routines, see the IBM Informix: User-Defined Routines and Data Types Developer's Guide.
Home |
[ Top of Page | Previous Page | Next Page | Contents |
Index ]