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Oracle SQL Database Administrator Interview Questions, Process, and Tips

Updated 19 Jan 2025

Oracle SQL Database Administrator Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. What are joins in SQL, and what are the different types?
  • Ans. 

    Joins in SQL are used to combine rows from two or more tables based on a related column between them.

    • Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

    • INNER JOIN returns rows when there is at least one match in both tables.

    • LEFT JOIN returns all rows from the left table and the matched rows from the right table.

    • RIGHT JOIN returns all rows from the right table and the matched rows from the left tabl...

  • Answered by AI
  • Q2. What is the method to find the third highest salary in a dataset?
  • Ans. 

    Use the SQL query with ORDER BY and LIMIT to find the third highest salary.

    • Use the SQL query: SELECT DISTINCT Salary FROM Employees ORDER BY Salary DESC LIMIT 2, 1

    • The above query will return the third highest salary from the 'Employees' table

    • Make sure to replace 'Employees' and 'Salary' with the appropriate table and column names

  • Answered by AI
Round 2 - One-on-one 

(2 Questions)

  • Q1. How do you manage multiple clients simultaneously?
  • Ans. 

    I prioritize tasks, set clear expectations, utilize time management tools, and communicate effectively.

    • Prioritize tasks based on urgency and importance

    • Set clear expectations with clients regarding response times and availability

    • Utilize time management tools such as calendars and task lists

    • Communicate effectively with clients to provide updates and manage expectations

  • Answered by AI
  • Q2. How do you determine which issue to prioritize when faced with multiple problems?
  • Ans. 

    I prioritize issues based on impact, urgency, and complexity.

    • Assess the impact of each issue on the system or users

    • Consider the urgency of resolving each issue

    • Evaluate the complexity of fixing each issue

    • Prioritize critical issues that have high impact, urgency, and low complexity

    • Create a priority list based on these factors

  • Answered by AI

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Company Website and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - Coding Test 

Test your algorithmic thinking and problem solving skills

Round 2 - One-on-one 

(1 Question)

  • Q1. Communications,clearity of answers
Round 3 - HR 

(1 Question)

  • Q1. Discussion about packages,joining date

Interview Preparation Tips

Interview preparation tips for other job seekers - Self assessment,Techical preparation

I applied via Campus Placement and was interviewed before Oct 2019. There were 3 interview rounds.

Interview Questionnaire 

8 Questions

  • Q1. Which programming language do you prefer and why?
  • Ans. 

    I prefer SQL as it is the language of databases and allows for efficient data management.

    • SQL is specifically designed for managing and querying databases

    • It allows for efficient data retrieval and manipulation

    • Other programming languages can be used in conjunction with SQL for more complex tasks

    • Examples of other languages commonly used with SQL include Python and Java

  • Answered by AI
  • Q2. What you have done in your Internship and Academic project?
  • Q3. Difference between C/C++/JAVA
  • Ans. 

    C/C++ are low-level languages, while JAVA is high-level. C/C++ are compiled, while JAVA is interpreted.

    • C/C++ are used for system programming and embedded systems.

    • JAVA is used for web development and enterprise applications.

    • C/C++ have manual memory management, while JAVA has automatic garbage collection.

    • C/C++ have pointers, while JAVA does not.

    • C/C++ code is platform-dependent, while JAVA code is platform-independent.

    • Exa...

  • Answered by AI
  • Q4. What is Synchronisation in JAVA?
  • Ans. 

    Synchronization in Java is a process of controlling access to shared resources by multiple threads.

    • Synchronization is achieved using synchronized keyword or locks.

    • It prevents race conditions and ensures thread safety.

    • Example: synchronized methods, synchronized blocks, ReentrantLock.

    • Synchronization can cause performance issues if not used properly.

  • Answered by AI
  • Q5. Tell me about yourself?
  • Q6. What is Maps, Hash maps, Skeleton class OOPS concepts?
  • Ans. 

    Maps, Hash maps, and Skeleton class are OOPS concepts used in programming.

    • Maps are data structures that store key-value pairs.

    • Hash maps are a type of map that use a hash function to index the keys.

    • Skeleton class is a class that provides a basic implementation of an interface.

    • OOPS concepts are Object-Oriented Programming concepts that focus on objects and their interactions.

    • Example: HashMap in Java is a commonly used im

  • Answered by AI
  • Q7. What is a database management System and what is concept of primary key and foreign key?
  • Ans. 

    A database management system (DBMS) is a software that manages and organizes databases. Primary key uniquely identifies a record, while foreign key establishes a relationship between tables.

    • A DBMS is a software that allows users to create, manage, and manipulate databases.

    • It provides tools for creating, modifying, and deleting databases, tables, and records.

    • Primary key is a unique identifier for a record in a table.

    • For...

  • Answered by AI
  • Q8. What are joins in SQL?
  • Ans. 

    Joins in SQL are used to combine data from two or more tables based on a related column.

    • Joins are used to retrieve data from multiple tables in a single query.

    • There are different types of joins such as inner join, left join, right join, and full outer join.

    • The join condition is specified using the ON keyword and the related columns.

    • Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

    • Joins c...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Always be specific to your answer, if you don't know just simply say i don't know. Don't use High technical terms until you're comfortable in them because it can be used against you. Don't give them chance to ask questions from your answers.

All the best 🙂

Skills evaluated in this interview

I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.

Interview Questionnaire 

2 Questions

  • Q1. Any performance tuning experience
  • Q2. What is the purpose of minimum memory configuration
  • Ans. 

    Minimum memory configuration is used to allocate the minimum amount of memory required for SQL Server to run.

    • Minimum memory configuration is used to ensure that SQL Server has enough memory to function properly.

    • It is important to set the minimum memory configuration to a value that is appropriate for the workload of the server.

    • If the minimum memory configuration is set too low, SQL Server may experience performance iss...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Have indepth knowledge on indexes, parallelism, memory architecture

Skills evaluated in this interview

I applied via Company Website and was interviewed before Mar 2021. There was 1 interview round.

Round 1 - One-on-one 

(1 Question)

  • Q1. Interview questions which type of questions regarding databases SQL server

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview questions which question regarding databases SQL

I was interviewed in Nov 2022.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Technical 

(5 Questions)

  • Q1. End to end approach when given data.
  • Q2. Diff in clustered index and non clustered index with example
  • Ans. 

    Clustered index determines physical order of data while non-clustered index is a separate structure.

    • Clustered index sorts and stores data in the table based on the key values

    • Non-clustered index creates a separate structure to store the index data

    • Clustered index can only be created on one column while non-clustered index can be created on multiple columns

    • Example: Clustered index on a customer table can be created on the...

  • Answered by AI
  • Q3. Diff composite and non composite key and then to create primary key without defining primary key what are other alternatives. Ana - Like. Unique, not null, candidate key.
  • Ans. 

    Composite key is made up of multiple columns while non-composite key is made up of a single column. Primary key can also be defined using unique, not null, or candidate key.

    • Composite key uses multiple columns to uniquely identify a row while non-composite key uses a single column

    • Primary key can be defined using unique, not null, or candidate key instead of explicitly defining it

    • Candidate key is a unique key that can be

  • Answered by AI
  • Q4. Recursive stored Procedure Optimising techniques Recovery and backup. How to do Loading of Jason file in sql How is Scheduling done On/off set count with curser example.
  • Ans. 

    Questions on SQL Database Administration including recursive stored procedures, optimization, recovery and backup, loading JSON files, scheduling, and cursor examples.

    • For recursive stored procedures, use common table expressions (CTEs) to simplify the code

    • Optimization techniques include indexing, query tuning, and partitioning

    • Regular backups and testing of recovery procedures are essential for data protection

    • To load JS...

  • Answered by AI
  • Q5. There were many more sql question is been asked by giving scenario and tables.
Round 3 - HR 

(1 Question)

  • Q1. Formal discussion and salary negotiations
Round 4 - Behavioral 

(1 Question)

  • Q1. Discussion about roles and responsibilities

Interview Preparation Tips

Interview preparation tips for other job seekers - My interviews was very knowledgeable person. interview have been conducted smoothly. Just one think which is. They delay so much that it looks like it’s a govt organisation.

I applied via Referral and was interviewed in Dec 2021. There were 3 interview rounds.

Interview Questionnaire 

4 Questions

  • Q1. What is clustered and non clustered index?
  • Ans. 

    Clustered index determines the physical order of data in a table, while non-clustered index is a separate structure.

    • Clustered index sorts and stores the data rows in the table based on their key values.

    • Non-clustered index creates a separate structure that contains the key values and a pointer to the data row.

    • A table can have only one clustered index, but multiple non-clustered indexes.

    • Clustered index is faster for retr...

  • Answered by AI
  • Q2. What is default fill factor?
  • Ans. 

    Default fill factor is the percentage of space reserved for future data growth in an index.

    • It is set to 0 by default, which means the index will be filled to 100% capacity.

    • A fill factor of 80% means that 20% of the index space will be left empty for future growth.

    • It can be set at the server, database, or index level.

    • It can affect performance and disk space usage.

  • Answered by AI
  • Q3. What are the system databases?
  • Ans. 

    System databases are the default databases created during SQL Server installation.

    • System databases include master, model, msdb, and tempdb.

    • Master database stores system-level information.

    • Model database is used as a template for new databases.

    • Msdb database is used for SQL Server Agent and maintenance plans.

    • Tempdb database is used for temporary storage of data.

    • System databases cannot be deleted or detached.

    • Additional sys...

  • Answered by AI
  • Q4. What are SQL editions?
  • Ans. 

    SQL editions are different versions of SQL Server with varying features and capabilities.

    • SQL Server Express - free, limited to 10GB database size

    • SQL Server Standard - basic features for small to medium businesses

    • SQL Server Enterprise - advanced features for large businesses

    • SQL Server Developer - full-featured version for development and testing

    • SQL Server Web - designed for web applications

    • SQL Server Business Intelligen

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - There were simple one line answer questions and one scenario given to resolve.

Skills evaluated in this interview

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - One-on-one 

(2 Questions)

  • Q1. What is dirty read.
  • Ans. 

    Dirty read is when a transaction reads data that has been modified by another transaction but not yet committed.

    • Occurs when a transaction reads uncommitted data from another transaction

    • Can lead to inconsistent or incorrect results

    • Can be prevented by using proper isolation levels in database transactions

  • Answered by AI
  • Q2. What all processes occurres when a db restarts.
  • Ans. 

    When a database restarts, various processes occur such as recovery, rollback, and reapplying transactions.

    • Recovery process ensures that the database is in a consistent state by rolling back uncommitted transactions and redoing committed transactions.

    • Rollback process undoes any changes made by transactions that were not committed before the restart.

    • Reapplying transactions involves re-executing transactions that were com...

  • Answered by AI
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I was interviewed in Feb 2024.

Round 1 - Technical 

(2 Questions)

  • Q1. Technical questins
  • Q2. SQLarchitecture
Round 2 - HR 

(1 Question)

  • Q1. Why shud we hire

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare well nd be confident
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Difference between view and stored procedure
  • Ans. 

    Views are virtual tables that display data from one or more tables, while stored procedures are precompiled SQL statements that can accept parameters and perform actions.

    • Views are read-only and cannot accept parameters, while stored procedures can be used to perform complex logic and can accept input parameters.

    • Views are used for simplifying complex queries and providing a layer of abstraction, while stored procedures ...

  • Answered by AI
  • Q2. What is DBCC ? Explain
  • Ans. 

    DBCC stands for Database Console Commands. It is a set of commands used to perform maintenance tasks on a SQL Server database.

    • DBCC CHECKDB - used to check the logical and physical integrity of all objects in a database

    • DBCC SHRINKDATABASE - used to shrink the size of a database

    • DBCC SQLPERF - used to display performance statistics for SQL Server

    • DBCC TRACEON - used to enable a specific trace flag for troubleshooting purpo

  • Answered by AI

Skills evaluated in this interview

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Oracle Interview FAQs

How many rounds are there in Oracle SQL Database Administrator interview?
Oracle interview process usually has 2 rounds. The most common rounds in the Oracle interview process are Technical and One-on-one Round.
How to prepare for Oracle SQL Database Administrator interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Oracle. The most common topics and skills that interviewers at Oracle expect are Database Administration and SQL DBA.
What are the top questions asked in Oracle SQL Database Administrator interview?

Some of the top questions asked at the Oracle SQL Database Administrator interview -

  1. What are joins in SQL, and what are the different typ...read more
  2. What is the method to find the third highest salary in a datas...read more
  3. How do you determine which issue to prioritize when faced with multiple problem...read more

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Oracle SQL Database Administrator Interview Process

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Interview experience

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Excellent
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