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 Truncate Table in Oracle

HCL,

1154

What is the purpose of tables, private synonyms and public synonyms in Oracle?

HCL,

1045

Â How to use an oracle sequence generator in a mapping?

Informatica,

1075

Â What are the oracle DML commands possible through an update strategy?

Informatica,

1063

Explain the use of Merge statement in oracle 11g

Infosys,

1027

What are the tools for Oracle ?

Infosys,

1062

What is the difference between primary key and secondary key?

Axtria, ITC Indian Tobacco Company,

968

What do you know about Master Data & Transaction Info Package?

ITC Indian Tobacco Company,

995

What is a Federated Query ?

MCN Solutions,

1002

What is the Structural difference between bitmap and b-tree index ?

Infosys,

1027

What are the advantages of using Query Strings?

MCN Solutions,

1068

What do you mean by Correlated subquery in database?

B-Ways TecnoSoft,

999

How to know the Architecture of the Database

HCL,

1160

How we can connect the Webform pages with database?

HCL,

951

What is the difference between indexes,views,synonyms?

HCL,

1126

Un-Answered Questions { Databases }

now iam working as an hr executive in hyderabad i would like to learn oracle hrms kindly suggest me some good institutes in hyderabd

2297

Explain alias in sql?

1047

Where is pl sql used?

953

What is normalisation and its type?

928

How to disable triggers using "disable trigger"?

1056

in the physical file layout, where should the transaction log be stored in relation to the data file?

994

Is postgresql cloud based?

813

What is mvcc in mysql?

998

Does QTP Support the Propjects which are running in Dot Net? As we are starting with new project in Dot net need to use automation tool?Please advice & let me know what would be the best.

2056

can you tell how can you display the maximum salary in sql? : Mysql dba

865

explain commit and rollback in mysql : sql dba

1015

Does partitioning improve performance?

975

How can we use ConnectorJ JDBC Driver with MS SQL?

999

How to start, stop and restart postgresql database?

915

How to get help at the sql prompt?

1113

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