An RDBMS stores all data in two-dimensional tables composed of rows and columns, enabling users to store, update, and efficiently retrieve data. Common RDBMS examples include MS Access, Oracle, IBM DB2, Microsoft SQL Server, and MySQL. Oracle Enterprise Manager is a web-based tool for managing Oracle databases. The CREATE DATABASE statement shown creates a new database named "mynewdb" that defines users, log and data files, and tablespaces.

1. What is RDBMS all data is stored in two-dimensional tables that are composed of rows and columns. RDBMS enables you to store data, update it, and efficiently retrieve it.

2. RDBMS example MS Access ORACLE IBM's DB2 Microsoft SQL Server MySQL

3. Oracle Enterprise Manager is a web based db control serves as the primary tool for managing your Oracle db.

5. CREATE DB Statement CREATE DATABASE mynewdb USER SYS IDENTIFIED BY pz6r58 USER SYSTEM IDENTIFIED BY y1tz5p LOGFILE GROUP 1 ('/vobs/oracle/oradata/mynewdb/redo01.log') SIZE 100M, GROUP 2 ('/vobs/oracle/oradata/mynewdb/redo02.log') SIZE 100M, GROUP 3 ('/vobs/oracle/oradata/mynewdb/redo03.log') SIZE 100M MAXLOGFILES 5 MAXLOGMEMBERS 5 MAXLOGHISTORY 1 MAXDATAFILES 100 MAXINSTANCES 1 CHARACTER SET US7ASCII NATIONAL CHARACTER SET AL16UTF16 DATAFILE '/vobs/oracle/oradata/mynewdb/system01.dbf' SIZE 325M REUSE EXTENT MANAGEMENT LOCAL DEFAULT TEMPORARY TABLESPACE tempts1 DATAFILE '/vobs/oracle/oradata/mynewdb/temp01.dbf' SIZE 20M REUSE UNDO TABLESPACE undotbs DATAFILE '/vobs/oracle/oradata/mynewdb/undotbs01.dbf' SIZE 200M REUSE AUTOEXTEND ON NEXT 5120K MAXSIZE UNLIMITED;