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 many byte Unique integers does OIDs in PostgreSQL have?

1357

What is the command that can be used to allocate memory in postgreSQL?

1450

Why Update is too slow

1446

What does the option psql -l of PostgreSQL display?

1509

What is the operator that is used for case-insensitive regular expression searches in PostgreSQL?

1308

What is the option that can be used in PostgreSQL to find out how the query optimizer is evaluating the query given?

1369

What is the option used in PostgreSQL to increase the number of shared memory buffers shared among the backend processes

1368

What is the powerful database utility that can be used for building, executing and processing queries upon PostgreSQL databases?

1657

Does PostgrSQL support Column constraints? If so how is it done?

1324

Explain what is PostgreSQL?

1 2122

State some of the advanced features of PostgreSQL?

1 2367

Explain about Write Ahead logging?

1 2463

Explain about Multi version concurrency control?

1 2284

How to start the database server?

1 2108

How to stop the database server?

1 2222

Un-Answered Questions { Databases }

Is merge a dml statement?

1030

Can we write trigger for view?

1071

What is data source in connection string?

958

How should a many-to-many relationship be handled?

589

Explain trigger and trigger types?

1037

hi friends i completed b.com 2004.i have 3y accounting exp. in manufacturing company.now i have completed oracle finance.pls suggest me how will get job in oracle.can i get job in oracle.

2422

What specific conditions database should meet, before you can bulk copy data into it using bcp?

1043

explain the storage models of olap? : Sql server database administration

1014

Is mongodb a relational database? Explain

When was mongodb founded?

How to return multiple rows from the stored procedure?

1015

Can we use mongodb with java?

Explain the advantages of merge replication?

1011

How do I manually create a database?

1273

How do I view a procedure in sql server?

1038

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