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

Does mongodb support primary-key, foreign-key relationship?

Is it possible to configure the cache size for mmapv1 in mongodb?

What will happen when you remove a document from database in mongodb? Does mongodb remove it from disk?

Why mongodb is known as best nosql database?

If you remove an object attribute, is it deleted from the database?

Why are mongodb data files large in size?

What will have to do if a shard is down or slow and you do a query?

Is mongodb a nosql database? Explain.

By default, which replica sets are used to write data?

Is it true that mongodb uses bson to represent document structure?

What is the difference between mongodb and redis database?

In which format mongodb represents document structure?

What are queries in ms access?

919

What is the role of where clause in ms access?

851

What is maximum size for an access database?

937

Un-Answered Questions { Databases }

What is 'mysqldump'?

1081

If a tablespace has a default pctincrease of zero what will this cause (in relationship to the smon process)?

600

Why use sub query in sql server and list out types of sub queries?

1018

What is database connection pool size?

933

Why is sql*loader direct path so fast?

1118

How do I use unicode codesets with the weblogic jdriver for oracle driver?

1098

Are you familiar with user exits in reports?

Is mongodb better than other sql databases? If yes then how?

How rdbms is different from dbms?

921

What is logshipping and its purpose?

1010

What is usually the first word in a sql query?

1151

What do you mean by stored procedures?

1029

How do I get a list of table names in mysql?

950

What is the meaning of 3 tier?

829

how to do transactions/locking in mongodb?

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