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Error: SDE_ERROR_IOERROR

Error Message

This error occurs when working with 'Editing and Transactions' in SDE 2.1 to update the SDE feature attribute values using SdeFeature.SetValue prior to StoreSDEFeature:

SDE_ERROR_IOERROR

Cause

Data contains records with null values.

Solution or Workaround

Columns in the database do not allow null values. Once these columns are updated with values other than null, the error message will not occur.