Physical storage structure of Oracle database structure

oracle| Data | database | Database structure 1, physical storage structure 1.1 data files
The data file is used to store all database data. Placing data in multiple data files and then placing data files on different hard disks can improve access speed.
1.2 Record files
The record file is also known as the Redo log (transaction) file. Redo logs work in a circular manner in a log file. There is an archive log mode and a non-archived log mode.
1.3 Parameter file
Each Oracle database and instance has its own unique Init.ora file. The values in the Init.ora file determine the properties of the database and the instance.
1.4 Control files must have at least one control file per database, but it is recommended that users use two or more control files and store them on different disks. The control file is a very small file that contains key information related to all the files in the Oracle database. The Oracle system maintains the integrity of the database by controlling the file and determines which redo logs to use when restoring data. In the event that all database control files are lost, Oracle provides a command to establish a control file, which in most cases can be used to reconstruct the control file.