New Features of ArcGIS 9.3: Geodatabase

In ArcGIS, data is still mainly stored and managed using Geodatabase. In ArcGIS 9.3, Geodatabase has improved spatial data management and enhanced its ability to integrate with enterprise systems.

In ArcGIS 9.3, Geodatabase enhancements include:

1. Manage Raster Data

• A new geoprocessing tool is provided to facilitate the transfer of unmanaged grid directory tables (in personal Geodatabase or file Geodatabase)

2. Geodatabase Replication

• Personal Geodatabase and file Geodatabase can be used as sub-geodatabases for unidirectional replication.
• When copying Geodatabase, the log file can record more details.

3. Direct Connection downward compatibility

• The client of ArcGIS 9.3 can connect to the ArcSDE Geodatabase before 9.3.
• Backward compatibility makes it easier to set the migration policy.

4. Version editing

• The merge geometries option enhances conflict and coordination management.
• The version changes Viewer tool allows you to compare a version with an earlier version without performing coordination.

5. Support for PostgreSQL (an open source database)

• ArcSDE Geodatabase can implement a complete Geodatabase data model based on PostgreSQL.
• Vector data is stored using ESRI spatial type
• The postgis open source space type is also supported.

6. Support for SQL Server 2008

• ArcGIS 9.3 supports two new spatial types in Microsoft SQL Server 2008. Geodatabase based on SQL Server 2008 can store vector data through any space type (geography or geometry.

7. Support for the new 64-bit Platform

• ArcSDE now supports 64-bit Windows and Linux platforms.

From: higis.cn http://www.higis.cn/index.php/2008/05/367/