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  • LANSA extended definitions such as Date Conversion, Substring, Concatenation, Mathematical Calculation, Code Fragment (refer to Virtual Columns in Table in the Technical Reference Guide)
  • RPG or C program coded definitions (refer to Virtual Derivation in the Technical Reference Guide)
  • database trigger functions can also be used to create virtual columns (refer to Triggers).

RPG or C coded definitions may be necessary for complex actions such as type and length conversions, date to age conversions, or dynamic data conversion.

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