Can MapInfo TAB integer fields hold null values?
Is there a spec document on MapInfo TAB attributes available for download?
[GIS] MapInfo TAB – Integer fields and null values
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Can MapInfo TAB integer fields hold null values?
Is there a spec document on MapInfo TAB attributes available for download?
Best Answer
Unfortunately the tab file format doesn't support NULL values. If you need NULL values you need to define your own NULL values, for instance -9999.