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 are dml commands?

1033

What is dense_rank?

942

What is the use of stored procedures?

1070

What is rownum and rowid?

1051

What does count (*) mean?

940

What are all the ddl commands?

1197

What are the two types of periodical indexes?

954

What are the qualities of 2nf?

1064

What is trigger explain it?

1032

What are triggers and its types?

1087

What are basic techniques of indexing?

1408

What is the difference between inner join and left join?

1007

What does dml mean?

1001

What's the difference between a primary key and a clustered index?

999

What are inner and outer joins examples of both?

981

Un-Answered Questions { Databases }

How is mapping of name of dll and function done?

How can windows applications connect to sql servers via odbc?

1144

What is the execution plan in sql?

1042

What is inline variable assignment?

1040

Which is better Oracle or MS SQL? Why?

4968

What is sub-query in sql server? Explain its properties.

1103

How to create lov dynamically at runtime & attach to text field?

1215

How to create a new view in mysql?

935

Can two tables have same primary key?

1001

What is an Oracle database Partial Backup?

1175

Where is data stored in database?

891

What is foreign key in postgresql?

917

What are the tools used for backup and ticketing?

1014

What is the string concatenation operator in oracle?

1194

How do I find mysql database?

930

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