The Retrieve Database File Description (QDBRTVFD) API is by far one of the most challenging and discouraging APIs that ever left IBM's drawing board alive. But because it is also an extremely powerful API, I keep coming back to it whenever database files are involved in the equation. There's no detail in the complex and nested structure that makes up a file object that is out of reach for the QDBRTVFD API. Whether physical files, logical files in various flavors, any kind of file field ...

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