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The effective limit before performance degrades is typically between 250 and 500 MB per Access database file.įully supported across all DBMSs includes cross-database replication, updates using checkout and check-in, and historical archiving Each feature class can scale up to hundreds of millions of vector features per dataset. The 1 TB limit can be raised to 256 TB for extremely large image datasets. Each file geodatabase can hold many datasets. A file geodatabase is a file folder that holds its dataset files.Īll the contents in each personal geodatabase are held in a single Microsoft Access file (.mdb). Concurrent use eventually degrades for large numbers of readers.Įach dataset is a separate file on disk. Single user and small workgroups with smaller datasets: some readers and one writer. Concurrent use of any specific file eventually degrades for large numbers of readers. Single user and small workgroups:many readers or one writer per feature dataset, stand-alone feature class, or table.
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#Arcgis file geodatabase very large windows#
Original data format for ArcGIS geodatabases stored and managed in Microsoft Access data files.(This is limited in size and tied to the Windows operating system.) Comparing the three types of geodatabasesĪ collection of various types of GIS datasets held as tables in a relational database (This is the recommended native data format for ArcGIS stored and managed in a relational database.)Ī collection of various types of GIS datasets held in a file system folder.(This is the recommended native data format for ArcGIS stored and managed in a file system folder.)