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

Explain external key management in sql server 2008

896

How to store and query spatial data?

1005

How many types of tables supported by oracle?

1083

How to select some rows from a table in oracle?

1084

How to connect to a local oracle 10g xe server?

1000

How to use subqueries with the in operator using oracle?

1100

Can select statements be used on views in oracle?

1038

How to use "while" statements in oracle?

1336

How to sort the query output in oracle?

1033

How to use null as conditions in oracle?

1095

How to use "for" statements in oracle?

1083

How to use group functions in the select clause using oracle?

1081

What is transport network substrate (tns) in oracle?

1053

How to write a left outer join with the where clause in oracle?

1092

How to count duplicated values in a column in oracle?

1056

Un-Answered Questions { Databases }

What is difference between commit and rollback when used in transactions?

973

What area unit the various kinds of info compression introduced in sql server 2008?

1109

Difference between DELETE and TRUNCATE?

1060

What is query optimization in sql?

992

What is pl sql package?

1045

What causes re-resolution of a stored procedure in sybase?

902

What is substitution variable in pl sql?

1054

How can a user-defined datatype be created?

996

Can mongodb store binary data?

Explain the use of decode function

What would happen if the both source and destination have the same name?

813

What is the log shipping?

1024

What is pg_catalog?

755

What is the main difference between ‘between’ and ‘in’ condition operators?

1205

What does postgresql stand for?

840

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