One of the ways to update features in a database is by using the FME format attribute
fme_db_operation. The attached workbench (fme_db_operation.fmwt) illustrates the use of this to update or delete features from a database.
The steps involved are:
The FME Format Attribute, fme_db_operation, is available on most of the database readers and writers. See the FME User Documentation for the database you're using.
The second sample workspace illustrates use of writer mode on the feature type - see DataBaseWriterMode.fmwt. Our recommendation is to use the fme_db_operation approach to database updates.
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