Code the routine body
The actual work of the C UDR is done with C-language statements in the routine body.
You can use the following statements and calls in the routine body:
- C-language statements
- Calls to functions in libraries that the supports
For a description of these function libraries, see Regular public functions.
- Calls to other C functions
You can call any of the following kinds of C functions:
- Any other C UDR that is linked into the same shared-object file
For more information, see Call UDRs within a module.
- A C UDR that is not in the same shared-object file
For more information, see Call UDRs with the Fastpath interface.
- Any other C UDR that is linked into the same shared-object file
You cannot directly call any other functions within a C UDR.