1) XYZ Stores is a leading electronic store in Oman. The store is open for customers for business operations from 9:00 am to 6:00 pm.ABC Stores has a database application to carry out he business operations.Database backup is essential to protect the data loss. Preferable backup method,hot backup or cold backup? Why?

2)

a) Consider the following redo log files are available in a certain database. SQL> select group#, member from v Slogfile; GROUP# MEMBER Nw C:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL REDO03.LOG C:\ORACLE\PRODUCT\10.2.0\ORADATA ORCL\REDOOP.LOG C:\ORACLE\PRODUCT\10.2.0 ORADATA\ORCL\REDO01.LOG As a Database Administrator write the SQL commands for the following requirements while configuring and managing the redo logs: i) Add a new member to the existing group 1. (6 marks) (8 marks) ii) Create multiplexed copies of redo log files. ) Add a new redo log group with a member file. (7 marks) (4 marks) iv) Drop a redo log group. a) Consider the following redo log files are available in a certain database. SQL> select group#, member from v Slogfile; GROUP# MEMBER Nw C:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL REDO03.LOG C:\ORACLE\PRODUCT\10.2.0\ORADATA ORCL\REDOOP.LOG C:\ORACLE\PRODUCT\10.2.0 ORADATA\ORCL\REDO01.LOG As a Database Administrator write the SQL commands for the following requirements while configuring and managing the redo logs: i) Add a new member to the existing group 1. (6 marks) (8 marks) ii) Create multiplexed copies of redo log files. ) Add a new redo log group with a member file. (7 marks) (4 marks) iv) Drop a redo log group