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A database analyst is responsible for designing, maintaining, and optimizing databases.
Designing and implementing databases
Ensuring data accuracy and security
Optimizing database performance
Creating reports and analyzing data
Collaborating with other teams to ensure data integration
Proficiency in SQL and database management systems
Knowledge of data warehousing and data mining
Experience with ETL processes
Ability to troubl
Data analysis involves identifying patterns, trends, and insights from data to make informed decisions.
Define the problem and identify the data needed
Clean and preprocess the data
Explore the data using statistical methods and visualizations
Develop and test hypotheses
Communicate findings and insights to stakeholders
Top trending discussions
I applied via Naukri.com and was interviewed in Jan 2021. There were 4 interview rounds.
I applied via Company Website and was interviewed before Aug 2021. There were 3 interview rounds.
Simple aptitude and coding test, I was selected from national talent hunt exam
I applied via Campus Placement and was interviewed in Nov 2020. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Aug 2021. There were 2 interview rounds.
Structured Query Language (SQL) is a programming language used to manage and manipulate relational databases.
SQL is used to create, modify, and delete databases, tables, and data
It is used to retrieve data from databases using queries
SQL is used to perform operations on data such as sorting, filtering, and grouping
Examples of SQL-based database management systems include MySQL, Oracle, and Microsoft SQL Server
I applied via Walk-in and was interviewed before Aug 2021. There were 2 interview rounds.
Transposing a data set involves flipping rows and columns.
Identify the data set to be transposed
Create a new table with the columns and rows flipped
Copy the data from the original table to the new table
Transpose can be done using Excel, Python, R, SQL, etc.
Example: Transposing a table of sales data to have products as rows and months as columns
I applied via Company Website and was interviewed before Jun 2020. There were 4 interview rounds.
MongoDB database algorithms are used for efficient data storage, retrieval, and processing.
MongoDB uses various algorithms for indexing, sharding, and aggregation.
Indexing algorithms include B-tree, hash, and text search indexes.
Sharding algorithms include range-based, hash-based, and zone-based sharding.
Aggregation algorithms include map-reduce and aggregation pipeline.
MongoDB also uses algorithms for query optimizati
I was interviewed in Sep 2016.
I applied via Naukri.com and was interviewed in Jun 2021. There was 1 interview round.
C is a procedural language while Java is an object-oriented language.
C is compiled while Java is interpreted
C has pointers while Java does not
Java has automatic garbage collection while C does not
Java is platform-independent while C is not
Java has built-in support for multithreading while C does not
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