1. A system comprising: an associative memory comprising a plurality of data and a plurality of associations among the plurality of data; a first table from which the associative memory has been built, wherein the first table comprises a first record, wherein the first record comprises a first field and a second field, wherein the associative memory is configured to ingest the first field, and wherein the associative memory is further configured to avoid ingesting the second field; a second table comprising a second record, wherein the second record includes a third field, and wherein the third field stores first information indicating at least one of: whether the first field has been ingested by the associative memory or has been forgotten by the associative memory; a comparator configured to compare the first table and the second table to identify one of: whether the first field should be forgotten by the associative memory or whether the first field should be ingested by the associative memory; and an updater configured to update the associative memory by performing one of: ingesting the first field or forgetting the first field.