Databases Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Oracle (3253)
SQL Server (4518)
MS Access (429)
MySQL (1402)

Postgre (483)
Sybase (267)
DB Architecture (141)
DB Administration (291)

DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
IBM Informix (50)

Neo4j (82)
InfluxDB (0)
Apache CouchDB (44)
Firebird (5)

Database Management (1411)
Databases AllOther (288)

Databases Interview Questions

Questions Answers Views Company eMail

Explain the term entity in dbms?

950

What is index hunting and how does it help in improving query performance?

2061

What do you understand by clause in sql?

1094

What are the differences between a dbms and rdbms?

1071

Explain the terms specialization and generalization.

1002

Explain the term entity set in dbms?

1198

Explain the term entity type in dbms?

1092

What are the different types of keys in the database?

999

Mention the different languages present in dbms

1010

What is sql and where is it used?

994

What do you understand by cursor?

1004

How can you perform pattern matching in sql?

1048

What do you understand by intension and extension?

979

Mention the differences between unique key and primary key

1042

What is normalization and what are the different types of normalization?

1043

Un-Answered Questions { Databases }

Does google use postgresql?

955

What is the order of sql select?

1093

what is cte? : Mysql dba

1002

Can postgresql run on windows?

961

What is the function of create command?

923

What according to you is the difference between mysql and sql server performance?

1150

Can a stored procedure call itself or recursive stored procedure? How many levels sp nesting is possible?

1019

What is serializable?

1092

What is the optimization being performed in oracle and SQL Server?

1101

How do stored procedures work?

1127

What is a natural join sql?

1044

What plvcmt and plvrb does in pl/sql?

1369

Can we update data in a view?

1083

How is rman better than user-managed backup recovery process?

hi i am working as a testengineer , so i want to no the backend data base connection can any one tell mwe in detail

2284

For More Un-Answered { Databases } Questions Click Here