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

What do you understand by the oracle?

594

Explain the term 'oracle grid architecture'?

634

What are the different types of backup available in the oracle?

622

What are the main benefits of using spfile over pfile?

680

What do you understand by the term 'normalization'? Explain the various modes of normalization?

598

What are a database and a data warehouse?

1078

What do you understand by the denormalisation?

1022

What is an index in sql?

1073

Name few of the dcl commands in sql?

1057

What is join and name different type of joins?

1103

Is there any difference between the primary key and unique key?

1046

Name the different type of indexes in sql?

1017

Can you name some of the dml commands in sql?

1088

What is a view and what are its advantages?

1173

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

1149

Un-Answered Questions { Databases }

What is default password for postgres?

916

What is the default port no on which sql server listens? : sql server DBA

1224

How do I clear a mysql database?

1017

What is 2nf in database?

1083

What is ora2pg?

846

What is difference between my sql and sql?

1144

What is a non equi join?

1026

what is a constraint? : Sql dba

1237

What is a trigger? Why we need it?

1062

What is blob in mysql?

1090

How to check if value already exists in mysql database in php?

937

Explain a synonym?

1090

Why should you use or avoid select * statements?

1080

What do the 9i dbms_standard.sql_txt() and dbms_standard.sql_text() procedures do?

4573

Is left join inner or outer by default?

1077

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