Compacting Local Databases
You can optimize a local database by clicking Compact () in the Maintenance section of the Home toolbar to open the Compact dialog box. The File size field shows the current size of the SQLite® database file, and the Estimated file size after compacting field shows the estimated size after the file has been compacted. Click OK to compact the file. This may take a few seconds up to several minutes depending on the size of the database file.