what is the diffrence in DBMS and RDBMS?

Friends - Currently we are running SQL Server 2000 Cluster on Acitve\Active mode. We are planning to upgrade SQL Server 2000 Cluster to SQL Server 2005 Cluster environment and we are planning to implement Active\Passive mode on SQL Server 2005. Any one could help me in brief steps how to implement this...

hi all, i was using the system tables namely sysindexes and sysobjects in sql server 2000. But now sql server 2005 is using instead of sql server 2000. Since am using sysindexes and sysobjects, too much time is taking for the execution in sql server 2005. So I need to change the query suitable for sql...