Databases Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Sybase (267)
DB Architecture (141)
DB Administration (291)

DB Development (113)
SQL PLSQL (3330)
MongoDB (502)
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Database Management (1411)
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Databases Interview Questions

Questions Answers Views Company eMail

Is left join faster than join?

1053

Does inner join remove duplicates?

940

Can we rollback after truncate?

1031

Can we create a trigger on view?

895

Does truncate release storage space?

1077

Are views faster than queries?

992

Can we perform dml on view?

1044

How does a trigger work?

1070

Can we insert delete data in view?

950

How does a covering index work?

960

Can we have two clustered index on a table?

1025

How many types of primary keys are there?

1036

Can we insert data into view?

900

How do you define a foreign key?

1002

Can we join tables without foreign key?

962

Un-Answered Questions { Databases }

what is the difference between data migration and production migration.

2346

Difference between cartesian join and cross join?

1039

What is difference between temp table and cte?

1019

How do you copy a table in sql?

1069

What extended events?

1005

How to create prepared statements using odbc_prepare()?

1065

give a simple example of physical and logical data independence

2564

What are tuples in sql?

1135

What is a derived table?

928

What is user-defined multi-statement table-valued function?

1061

What are functions in database?

948

Will you be able to store pictures in the database?explain.

992

How delete all data from table in sql?

1016

What mysql means?

938

What are mongodb indexes?

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