How to find the datafile/controlfile/redologfile/pfile/spfile/ location in oracle database?

The contents are of my own testing and deployments. Not guaranteed that these might work in your environment. Please test before usage.

Summary: In this session, I will teach you How to find the datafile/control file/redo logfile/pfile/spfile/ location in the oracle database.


If you are fresher in DBA this blog really helps you guys.

  1. How to find the data file Location?
  2. How to find the control file Location?
  3. How to find the redo log file Location?
  4. How to find the pfile Location?
  5. How to find the spfile Location?
  1. How to find the data file Location?
  •  A data file is a file that is part of an Oracle database. Datafiles are used to store data - including user data.

      2. How to find the control file Location?
  • A control file is a small binary file that records the physical structure of the database and includes: The database name. Names and locations of associated datafiles and online redo log files


3. How to find the redo log file Locations?

  • Redo log files are used for recovery purposes if any failure happens like media or hardware and software.


4.How to find the pfile Location?

  • The pfile is nothing but a configuration file that contains all configuration parameters.
  • The server process are using that pfile to start the DB as nomount mode


5. How to find the spfile location?

  • Spfile is nothing but its a server parameter file and it's a binary file we can't read or write these files


                                                    Thanks for you are time!!

0 Comments

DELETE Statement in ORACLE DB— Step by Step Internal Flow with classroom example.

Imagine your Oracle database like a school, and you’re Teacher decides to remove a student (row) from the classroom(table). Let’s see how the journey works step by step: 1)Classroom = Oracle Table 2)Students = Rows (Records) 3)Class Teacher = Oracle Server Process 4)Attendance Register = Data Dictionary User fires DELETE statement: DELETE FROM students WHERE grade = 'D'; Internal Processing Steps: Client Process Sends DELETE Statement to Server Process The teacher receives a request to remove a student from the classroom. Syntax Check (Parsing) The teacher checks if the request is grammatically correct — proper command, keywords, and a semicolon. Semantic Check Teacher verifies if the classroom exists and whether the condition (like grade = 'D') makes sense. Object Resolution Teacher confirms that the ‘students’ classroom (table) exists in the school records (data dictionary). Optimization Decides the fastest way to find those students — by roll number, grade, or al...