Database Interview Questions

Most Popular Database Interview Questions And Answers

• Q #1) What do you understand by 'Database'?
• Q #2) Define DBMS.
• Q #3) Define RDBMS.
• Q #4) Enlist the advantages of DBMS.
• Q #5) What do you understand by Data Redundancy?
• Q #6) What are the various types of relationships in Database?

1. What are the 4 main components of a database?
2. What are the five 5 major components of a database?
3. What are the 4 main objectives of a database?
4. What type of database is SQL?
5. What are the 3 main types of databases?
6. What are the 3 components of SQL?
7. What are the 4 most commonly used databases for data analysis?
8. What are the 3 basic concepts of database?
9. What are the 3 main functions of a database?
10. What are the 3 databases?
11. Is Excel considered a database?

What are the 4 main components of a database?

Ans. The database management system can be divided into four major components, they are DATA, User, Hardware and Software.

What are the five 5 major components of a database?

The five major components of a database are hardware, software, data, procedure, and database access language.

What are the 4 main objectives of a database?

Based on the Information Architecture Principle, every database can be architected or evaluated by six interdependent database objectives. Four of these objectives are primarily a function of design, development, and implementation: usability, extensibility, data integrity, and performance.

What type of database is SQL?

SQL database or relational database is a collection of highly structured tables, wherein each row reflects a data entity, and every column defines a specific information field. Relational databases are built using the structured query language (SQL) to create, store, update, and retrieve data.

What are the 3 main types of databases?

hierarchical database systems. network database systems. object-oriented database systems.

What are the 3 components of SQL?

SQL has three main components: the Data Manipulation Language (DML), the Data Definition Language (DDL), and the Data Control Language (DCL).

What are the 4 most commonly used databases for data analysis?

Some popular relational database management systems (RDBMS) are Oracle, MySQL, SQL Server, and PostgreSQL. Here's a basic schema that shows how a relational database works. To query data in a RDBMS, we use Structured Querying Language (SQL). With SQL we can create new records, update them, and more.

What are the 3 basic concepts of database?

Tables, keys, and relationships are the three core components of a relational database.

What are the 3 main functions of a database?

The functions of a DBMS include concurrency, security, backup and recovery, integrity and data descriptions.

What are the 3 databases?

hierarchical database systems. network database systems. object-oriented database systems.

Is Excel considered a database?

Excel is not database — it is spreadsheet software. Even though many users try to force it to function like a database, its limitations in that regard are considerable. Starting with the most obvious, Excel is limited to 1M rows of data, while databases don't suffer from such restrictions.