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 is end user data?

837

What are the 3 levels of data abstraction?

890

What is database architecture?

748

What is external database?

915

What is single tier architecture?

855

What is n tier architecture with example?

814

What is the difference between 3 tier and 3 layer architecture?

852

What is internal database?

1048

What is hypermedia database?

840

What does n tier mean?

784

What is difference between 2 tier and 3 tier architecture?

832

How is data stored in dbms?

1010

What are the three types of database design?

1085

What are the main phases of database development?

1031

What is database design and development?

1063

Un-Answered Questions { Databases }

Why do we use mongodb?

List few ways to code transactions in an efficient manner?

962

What are different backups available in sql server?

1158

What is the difference between local and global temporary table?

1090

How many employees does mongodb have?

In case you have filters in your report, when filters will be applied in cached report instance?

119

How to get execution statistics reports on query statements?

1155

What are the advantages of mysql?

1041

Explain the difference between $ORACLE_HOME and $ORACLE_BASE.

7777

What is the difference between having clause and where clause?

1116

What is use of except clause?

1143

What are the methods of filing?

994

What are “lock” hints?

1107

How do I remove duplicate rows from a table in sybase?

957

Is foreign key mandatory?

1064

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