when you issue the create database statement at the time of the database creation at that time control file of an oracle database is created. The name of the control file is defined by the CONTROL_FILES parameter in the pfile initialization parameter file. Example of a control file initialization parameter is as follows:
Control_files '/opt/luck/con01.ctl',
'/opt/luck/con02.ctl'
If files names currently exist at the time of database creation, you must specify the Control Reuse clause in the CREATE DATABASE statement. The size of the control file is influenced by the following keywords in the create database or create control commands:
- MAXLOGFILES
- MAXLOGMEMBERS
- MAXLOGHISTORY
- MAXDATAFILES
- MAXINSTANCES
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