"Go" The difference between file Geodatabase and personal geodatabase in ArcGIS

Original Address:The difference between file Geodatabase and personal geodatabase in ArcGIS Favorite Memories, baby.

First, platform support:

1, Personal Geodatabase: can only be run on windows;

2, File geodatabase: cross-platform support, can be run on Windows and UNIX, Linux.

Evaluation: This is a very big highlight, so that the data can be better ported.

Second, storage mode:

1, Personal geodatabase is a ms-access MDB database document;

2. File geodatabase is stored in a folder mode.

Rating: Personal Geodatabase has the limitations of Microsoft's Access database, File geodatabase, can slowly get rid of the restrictions relying on access, without being subject to the technology of Microsoft.

Third, storage limits:

1, Personal Geodatabase: The same as the MS Accesss limit, the database maximum capacity of 2GB.

2, File geodatabase: The database is unrestricted, each table is limited to 1TB (1000GB).

Rating: File Geodatabase supports the processing of massive amounts of data.

Four, storage space :

The same data, in file Geodatabase, consumes less hard disk space than personal geodatabase and shapefiles, and can typically reduce 50%~70% by up to 1/5.

V. Effectiveness:

The File geodatabase can process data 20% to 10 times times faster than the personal geodatabase, which increases with the amount of data, the greater the difference in efficiency.

Six, whether data compression is supported:

1, Personal geodatabase: Data compression is not supported.

2, File geodatabase: Support a new data compression format, in the query and display with the same uncompressed format, the compression ratio can be from 2:1 to 25:1.

"Go" The difference between file Geodatabase and personal geodatabase in ArcGIS