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How big can a personal geodatabase be?
A personal geodatabase is a Microsoft Access database that can store, query, and manage both spatial and nonspatial data. Because they are stored in Access databases, personal geodatabases have a maximum size of 2 GB. Additionally, only one person at a time can edit data in a personal geodatabase.
What are the main features of personal geodatabase file?
Because they are stored in Access databases, personal geodatabases have a maximum size of 2 GB….Feature datasets can contain feature classes as well as the following types of datasets:
- Attachments.
- Feature-linked annotation.
- Geometric networks.
- Network datasets.
- Parcel fabrics.
- Relationship classes.
- Terrains.
- Topologies.
What are the characteristics of geodatabase?
Enterprise geodatabases
- Extremely large, continuous GIS databases.
- Many simultaneous users.
- Long transactions and versioned workflows.
- Relational database support for GIS data management (providing the benefits of a relational database for scalability, reliability, security, backup, integrity, and so forth)
How big does a personal geodatabase need to be?
If you do not know what kind of geodatabase you want to create, this is a good default choice. A personal geodatabase stores its datasets in a Microsoft Access .mdb file on disk. The storage sizes of personal geodatabases are effectively limited to between 250 and 500 MB for the entire geodatabase and are only supported on Windows.
What are the different types of geodatabases?
There are three kinds of geodatabases from which to choose: A file geodatabase stores datasets in a folder of files on your computer. Each dataset is held as a file and can be up to 1 TB in size (and you can optionally configure a file geodatabase to store much larger datasets).
Where do I store my geodatabase on my computer?
File geodatabases can be used across platforms and can be compressed and encrypted for read-only, secure use. If you do not know what kind of geodatabase you want to create, this is a good default choice. A personal geodatabase stores its datasets in a Microsoft Access .mdb file on disk.
Do you need a file or ArcSDE geodatabase?
Users often need larger storage for their datasets, so they choose file or ArcSDE geodatabases. If you want to use historical archives in your geodatabase, replicate your data, access simple data using SQL, or concurrently edit data without locking it, you need to use enterprise geodatabases.