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

Oracle (3253)
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 define Data Block size ?

2 5680

What is Row Chaining ?

Cognizant, CTS,

3 13017

What is an Extent ?

3 6525

What is a Segment ?

1 4821

What are the different type of Segments ?

2 4801

What is a Data Segment ?

3 6289

What is an Index Segment ?

2 4878

What is Rollback Segment ?

3 6444

What are the uses of Rollback Segment ?

2 5963

What is a Temporary Segment ?

2 5292

What is a Data File ?

1 4704

What are the Characteristics of Data Files ?

3 6775

What is a Redo Log ?

3 7554

What is the function of Redo Log ?

1 5279

What is the use of Redo Log Information ?

2 6761

Un-Answered Questions { Databases }

Have you attend the client meetings?

661

How to connect to mongodb using mongoose in node.js?

Explain various types of locks in a transaction? Which is better and why?

1084

How can you control the amount of free space in your index pages? : sql server DBA

1385

How do I limit the number of rows returned by an oracle query after ordering?

1228

How do I install mysql on windows 10?

1038

1.what are diff types of joins , and explain diff between cross join and full outer join 2.diff types of views 3. Diff types of index 4. What is diff b/w stores procedure and function procedure 5.diff between double and int in SQL 6.diff between char and varchar in SQL. 7.Oracle or SQL whice you will preferred and why.

1670

What are indexers?

1136

What is query and its types?

962

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

What is clustered index in sql?

1103

What is normalization? Explain different levels of normalization?

63455

What is difference between stored procedure and trigger?

1255

What does <> mean in access query?

989

What is medical indexing?

882

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