1. Maintaining the Control File
Schedule: Timing Topic
<xx> minutes Lecture
<xx> minutes Practice
<xx> minutes Total

2. Objectives Explaining the uses of the control file
Examining the contents of the control file
Obtaining the control file information
Multiplexing the control file
Lesson Aim
<Enter lesson aim here.>

3. Using the Control File Database Database Control files Redo log files
Data files
Database
Database

4. The Contents of the Control File
Database name Data file location Redo log file location Tablespace names Current log sequence number Checkpoint information Log history Backup information

5. Parameters Affecting the Size of the Control File
The size of the control file is influenced by the following parameters:
MAXLOGFILES
MAXLOGMEMBERS
MAXLOGHISTORY
MAXDATAFILES
MAXINSTANCES

6. Obtaining Information
V$CONTROLFILE - NAME
V$PARAMETER NAME ( control_file) VALUE
V$CONTROLFILE_RECORD_SECTION TYPE RECORDS_SIZE RECORDS_TOTAL RECORDS_USED

7. Multiplexing the Control File
control_files=(/DISK1/control01.con,/DISK2/control02.con)
Disk 1
Disk 2
control01.con
control02.con

8. Summary
Multiplexing the control file helps to avoid a single point of database failure.