Hot answers tagged esri-geodatabase
Not only does a registered rowid column need to be INTEGER (32-bit), POSITIVE, NON-ZERO, NOT NULL and UNIQUE, it also needs to be reproducible on subsequent invocations. It is not possible to manufacture a field on the fly which meets this reproducibility requirement. Therefore the only way to generate a rowid for such a non-unique view is to populate a ...
There is a link you can look regarding your first question: https://geonet.esri.com/thread/45017
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