Comparison between file GDB and personal GDB

1. The views on the arccatalog are the same, all of which are geodatabases.
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2. In the window directory, file geodatabase is stored as a folder, while personal geodatabase is an mdb database with MS-access.
 

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Ii. Storage restrictions
1. personal Geodatabase : Same as the MS accesss limit, capacity maximum 2. GB, file Geodatabase: Unlimited capacity, Capacity limit for each table1 Tb (1000 GB).
Iii. platform support
1. Personal Geodatabase: Can only be run on WindowsBytes.
2. File Geodatabase: Cross-platform support, available in windows and Unix (Solaris,
Linux)ShippingBytes.

Iv. Performance
File Geodatabase RatioThe speed of personal geodatabase is 20% to 10 times faster. The higher the efficiency.
5. Storage space
same file , in file Geodatabase compared with personal Geodatabase and shapefile Occupied SpaceLess, usually less50% ~ 70%, Up to 1/5.
Bytes, Compression format
File GeodatabaseSupports a new compression format, both query and display Same scaling format, compression ratioBytesAvailable from2:1To 25:1.

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