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External Procedures, Triggers, and User-Defined Functions on IBM DB2 for i by Satid Singkorapoom, Daniel Lema, Fredy Cruz, Hernando Bedoya

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External user-defined functions
External user-defined functions (UDFs) are coded in one of the high-level languages (HLLs) that are available on the IBM i server. If you want complex sophisticated processing is required, or you plan to reuse existing code, external UDFs are the best choice.
This chapter describes external UDFs that are written in HLLs. It explains how to register and code external UDFs. It also reviews the differences in coding external UDFs as far as the different parameter styles that are supported by IBM DB2 for i. It describes ...

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