How to Create a Logical Field via the Data Dictionary Logical Fields are fields that do not physically exist within your databases' tables, but rather are configured by you as a Developer. m-Power's Data Dictionary structure allows you to define these logical fields just one time, and you are able to access them throughout […]
Introduction to User Defined Functions (UDF)
UDF Introduction All applications created with m-Power employ SQL to access the database. SQL, by itself, is a very powerful language. A database User Defined Function (UDF) allows users to extend the power of SQL. UDF's are a powerful yet simple way to perform routine data transformations, calculations, and complex SQL logic. Database vendors […]
Tags: Dates, Logical Fields, UDF
Sample UDF Code
Sample User-Defined Function (UDF) Code Every database has its own rules for languages which may be used to write User Defined Functions (UDFs). Here are two examples, one written in SQL and another in RPG, showing how to create functions for DB2/400. Example 1: Writing a UDF with SQL We are going to build […]
Tags: Admin, Advanced, Data Dictionary, External Objects, Logical Fields, RPG, SQL, UDF
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