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 rules exist regarding format, content, flame wars, etc

IBM,

who conceived and designed the informix database management system?

IBM,

who developed informix?

IBM,

why a foreground write in informix decrease performance?state the reason for the same?

IBM,

why do foreground writes decrease performance ?

IBM,

why is update statistics important to a database?

IBM,

What does REVERT do in SQL Server 2005?

HCL,

935

how to add a new column to an existing table?

MCN Solutions,

958

How many types of km's? And you what are the type's km are used in your project?

Infosys,

537

What is File steps?

Infosys,

584

Can migrate the one ORACLE DATA INTEGATOR studio to another ORACLE DATA INTEGATOR studio?

TCS,

597

How many types of dimensions in oracle?

TCS,

535

What are the Types of Scd's?

TCS,

553

Where is the multi connections are used in ORACLE DATA INTEGATOR?

TCS,

603

Which data loaded are in target db?

TCS,

535

Un-Answered Questions { Databases }

What does it mean to invest in the index?

920

What are the attributes of cursor?

1013

How can you delete databases in neo4j?

Which is faster truncate or drop?

1003

Can composite key be null?

754

How to take user input in pl sql?

1119

What is the need for indexing?

906

How can be determining the size of the log files?

549

Is microsoft access cloud based?

816

How many dba can you have?

505

How do I change my passwords (database, LDAP, and so on) without causing an outage?

1030

Mention what are the key characteristics of rac or why to use rac?

What does a dba do all day?

519

Can we rollback delete command?

955

Explain alternate key?

1032

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