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

Oracle (3259)
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 is an oracle table?

1004

What is the difference between hot backup and cold backup in oracle? Tell about their benefits also.

993

How do you find current date and time in oracle?

1073

What is a snapshot in oracle database?

1046

Is there any need to create database command in mongodb?

Does mongodb database have tables for storing records?

What is primary and secondary replica set in mongodb?

What do you understand by nosql databases?

Is it possible to remove old files in the movechunk directory?

Do the mongodb databases have schema?

Is mongodb better than other sql databases? If yes then how?

How to configure the cache size for wiredtiger in mongodb?

How to do transaction/locking in mongodb?

What type of dbms is mongodb?

Which are the different languages supported by mongodb?

Un-Answered Questions { Databases }

Describe in brief sql server monitoring ways.

1068

How many types of synonyms in Oracle?

1150

Explain sybase sql server?

974

When should you not use firebase?

1079

How can you create an empty table from an existing table?

1099

Is sql dba a good career? : SQL DBA

1010

Why is replication required on the sql server?

1078

What are aggregate and scalar functions?

1052

How consistent is the view of the data between and within multiple sessions, transactions or statements ?

2234

How can windows applications connect to oracle servers?

1083

Where would you look for errors from the database engine?

2869

How many databases can we create in a single server?

207

How do you use join?

957

What is the relation of a user account and a schema?

1149

Can we use the cursor's to create the collection in PL/SQL?

1055

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