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Experienced SQL Database Administrator with a strong background in managing databases and optimizing performance.
Over 5 years of experience in SQL database administration
Proficient in database design, implementation, and maintenance
Skilled in performance tuning and troubleshooting
Familiar with backup and recovery processes
Certified in SQL Server administration
Database Architecture, Cloud Architechture
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I applied via Campus Placement and was interviewed before Oct 2019. There were 3 interview rounds.
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
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...
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.
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
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...
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...
I applied via Naukri.com and was interviewed before Sep 2020. There were 3 interview rounds.
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...
I applied via Company Website and was interviewed in Dec 2024. There were 2 interview rounds.
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...
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
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
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
I applied via Company Website and was interviewed in Apr 2024. There were 3 interview rounds.
Test your algorithmic thinking and problem solving skills
I applied via Referral and was interviewed in Mar 2022. There were 2 interview rounds.
I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.
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
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...
I applied via Company Website and was interviewed before Mar 2021. There was 1 interview round.
I was interviewed in Nov 2022.
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...
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
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
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