这就是为什么要ARCSDE 9.3.1 for SQL Server 2008 的原因！
- Workgroup—Limited to running on a single machine and includes a SQL Server Express database engine
- Supports up to 10 simultaneous connections to a multiuser geodatabase
- Limited to 4 GB of data storage on a multiuser geodatabase
- Enterprise—Runs on multiple machines and on your choice of multiuser database (IBM DB2, Informix Dynamic Server, Microsoft SQL Server, Oracle, or PostgreSQL)
- Supports unlimited simultaneous connections to a multiuser geodatabase
- Contains unlimited storage capacity
- Can be installed on either a single server or distributed across multiple servers (Each server requires a license.)
