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Asked: 2026-05-13T18:53:10+00:00

I’m using Extensible Storage Engine and want a unique column (32bits wide). I need

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I’m using Extensible Storage Engine and want a unique column (32bits wide). I need the values in this column to be auto assigned by the database

I’m hoping to find something like JET_bitIndexUnique that I can mask in?

if there isnt such a mask whats the proper way to achieve the goal?

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  1. Editorial Team

    Please see: Version, Auto-Increment and Escrow Columns

    Auto increment columns are automatically
    incremented by ESE when a new record
    is inserted into the table. The value
    contained in the auto-increment column
    is unique for every record in the
    table and is not guaranteed to be
    continuous. These values are not
    recycled, but can be reused in certain
    cases. Only columns of type
    JET_coltypLong (Long) and JET_coltypLongLong
    (Currency) may be auto increment columns.

    Wiki: Extensible Storage Engine

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