At its most basic level, an ArcGIS geodatabase is a collection of geographic datasets of various types held in a common file system folder, a Microsoft Access database, or a multiuser relational DBMS. The geodatabase is a "container" used to hold a collection of datasets. There are three types:
• File geodatabases—Stored as folders in a file system. Each dataset is held as a file that can scale up to 1 TB in size. The file geodatabase is recommended over personal geodatabases.
• Personal geodatabases—All datasets are stored within a Microsoft Access data file, which is limited in size to 2 GB.
• ArcSDE geodatabases—Stored in a relational database using Oracle, Microsoft SQL Server, IBM DB2, IBM Informix, or PostgreSQL.
In this tutorial you will learn how to:
• Create a new file geodatabase
• Set new feature dataset