The following are the most popular and useful SQL interview questions and answers for fresher and experienced candidates. These questions are created specifically to familiarise you with the types of questions you might encounter during your SQL interview. According to ...

A list of top frequently asked DBMS interview questions and answers are given below. What is DBMS? DBMS is a collection of programs that facilitates users to create and maintain a database. In other words, DBMS provides us an interface ...

SQL Datatype is used to define the values that a column can contain. Every column is required to have a name and data type in the database table. Datatype of SQL: Binary Datatypes There are Three types of binary Datatypes ...

DBMS Tutorial provides basic and advanced concepts of Database. Our DBMS Tutorial is designed for beginners and professionals both. Database management system is software that is used to manage the database. Our DBMS Tutorial includes all topics of DBMS such ...

This section of interview questions and answers focuses on “Database Management System”. One shall practice these interview questions to improve their concepts for various interviews such as campus interviews, walk-in interviews, company interviews, placements, entrance exams and other competitive exams. ...

The SQL Set operation is used to combine the two or more SQL SELECT statements. Types of Set Operation Union The SQL Union operation is used to combine the result of two or more SQL SELECT queries. In the union ...

As the name shows, JOIN means to combine something. In case of SQL, JOIN means “to combine two or more tables”. In SQL, JOIN clause is used to combine the records from two or more tables in a database. Types ...

SQL aggregation function is used to perform the calculations on multiple rows of a single column of a table. It returns a single value. It is also used to summarize the data. Types of SQL Aggregation Function COUNT FUNCTION COUNT ...

Indexes are special lookup tables. It is used to retrieve data from the database very fast. An Index is used to speed up select queries and where clauses. But it shows down the data input with insert and update statements. ...

Views in SQL are considered as a virtual table. A view also contains rows and columns. To create the view, we can select the fields from one or more tables present in the database. A view can either have specific ...