Q: How can I use ILE to determine whether a physical file field is null? A: When a field is null capable, an RPG program associates a null indicator with the field. For example, when a null-capable field is read from an externally described file, the field's null indicator is set to on if the field is null in the record; otherwise, the null indicator is set to off. Use the %NullInd function in a logical expression to check for a null value in null-capable fields. ...

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