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

How to start a specific oracle instance?

1042

What is a dead lock in oracle?

1134

What are the differences between char and varchar2 in oracle?

1182

How to pass a parameter to a cursor in oracle?

1192

How to create a stored procedure in oracle?

1110

How to return top 5 rows in oracle?

1071

How to select some columns from a table in oracle?

1100

How to concatenate two text values in oracle?

1118

What is a data lock in oracle?

1137

What privilege is needed for a user to connect to oracle server?

998

What is an oracle user role?

992

How to download oracle database 10g xe?

1023

How to join two tables in a single query using oracle?

1001

How to check your oracle database 10g xe installation?

994

How to set a transaction to be read only in oracle?

1096

Un-Answered Questions { Databases }

Can binary strings be used in arithmetical operations?

943

Which is faster join or subquery in oracle?

1000

What is an execution plan? How would you view the execution plan?

1085

How many instances per computer are there in sql server 2000?

1084

What is the purpose of the grep command?

2150

When was mongodb created?

How to move database physical files in ms sql server?

1040

What is difference between primary key and foreign key?

911

Can we call future method from queueable?

1063

What is trigger and how to use it in sql?

1028

What are different type of Collation Sensitivity?

1011

What is data set in report?

140

How is foreign key commands related to primary key?

825

What is oracle rowcount?

1090

Explain neo4j.

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