What are the interview questions for Oracle DBA?

What are the interview questions for Oracle DBA?

Basic Oracle DBA Interview Questions for Freshers

• Mention Oracle DBA Characteristics.
• What is Oracle?
• What is an Oracle Database?
• What is an Oracle index?
• Why is the index used?
• Who is responsible to update the indexes?
• What are the various databases available in the market?

Is Oracle DBA in demand?

You’ll find Oracle DBAs in virtually any and all industries as generally, every business needs some form of database management. According to the National Bureau of Labor Statistics, the demand for Oracle database jobs is set to rise 11% through 2026.

How can I be a good DBA in Oracle?

Are there steps I can follow to become an Oracle DBA?

1. Step 1 Do some research about the role.
2. Step 2 Study the basics of database administration.
3. Step 3 Take training courses.
4. Step 4 Learn about related technologies.
5. Step 5 Look for database developer positions.
6. Step 6 Take advanced training.
7. Step 7 Get certified.

What are the daily activities of Oracle DBA?

The Oracle DBA: Performing Day-to-Day Operations

• Architecture and Design.
• Capacity Planning.
• Backup and Recovery.
• Security.
• Performance and Tuning.
• Managing Database Objects.
• Storage Management.
• Change Management.

What is the difference between checkpoint and SCN?

Checkpoint is the concept/background process while SCN is like serial number in our table.. the system change number (SCN) is Oracle’s clock – every time we commit, the clock increments. The SCN just marks a consistent point in time in the database.

What are the roles and responsibilities of Oracle DBA?

As an Oracle DBA, you can expect to be involved in the following tasks:

• Installing Oracle software.
• Creating Oracle databases.
• Performing upgrades of the database and software to new release levels.
• Starting up and shutting down the database.
• Managing the database’s storage structures.
• Managing users and security.

Is Oracle DBA a good career?

Career Outlook in Oracle Database Administrator A career on the same always is a very key role for any candidate who is really expert in Oracle database management system. Also, looking for some challenging role and job satisfaction them it will be a good career to choose.

What does a database administrator do on a daily basis?

Typical daily duties for database administrators are securing organizational data, restoring lost data, creating new user permissions, testing modifications, merging old databases, and conduct performance tuning support.

What is Oracle checkpoint process?

Answer: The checkpoint process is responsible for updating file headers in the database datafiles. A checkpoint occurs when Oracle moves new or updated blocks (called dirty blocks) from the RAM buffer cache to the database datafiles.

What is an SCN in Oracle?

the system change number (SCN) is Oracle’s clock – every time we commit, the clock increments. The SCN just marks a consistent point in time in the database. A checkpoint is the act of writing dirty (modified blocks from the buffer cache to disk.

What are the main function of DBA?

Database administration is more of an operational or technical level function responsible for physical database design, security enforcement, and database performance. Tasks include maintaining the data dictionary, monitoring performance, and enforcing organizational standards and security.