Large file support is enabled by default for databases created, copied, or opened using this and later releases of OpenEdge. This affects databases created or copied using the following commands and utilities:
  • PROSTRCT CREATE
  • PROCOPY
  • PRODB
  • CONV1112
  • PROREST
Opening a database enables large file support if it is not already enabled. The following message will be written to the database .lg file upon enabling large file support: 
Database with large file support will be enabled. (19400)
Note: If you downgrade a database from the current release to a previous release, and you do not have an OpenEdge Enterprise license, data access errors may occur because releases prior to 12.6 require an Enterprise license for large file support. To resolve such errors, back up and restore the database, adjusting data extents so that none exceed 2GB.