Microsoft KB Archive/21206

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ISAM Primary Key Should Never Contain All Binary Zeros

PSS ID Number: Q21206 Article last modified on 11-16-1992

2.00 2.10 2.20 MS-DOS

Question: Are there any invalid values for primary keys in ISAM files?

Response: The primary key in an Index Sequential file should never contain all binary zeros (nulls, “LOW VALUES”).

Copyright Microsoft Corporation 1992.