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 do you understand by a profiler with reference to mongodb?

What should all points be taken into consideration while creating a schema in mongodb?

What is the “__v” field in mongoose?

What do you know about mongodb?

Explain sharding in mongodb?

What are the differences between mongodb and mysql?

I am getting error cannot overwrite model once compiled mongoose, how to fix it?

What is difference between unix timestamp and mysql timestamp?

1019

Write a command to list all databases in mysql?

1046

How to find second highest salary from a table?

1028

What are the types of database engines available in mysql?

1044

Explain triggers and stored procedures?

935

Write command to import an mysql file?

1039

How to store binary data in mysql?

1006

What is difference between inner vs self vs cross?

971

Un-Answered Questions { Databases }

Explain the purpose of indexes?

985

Is sql free?

980

types of receipts and detail desription about recipts and tables effected by receipts?

2078

What is difference between index and primary key?

1105

Which software is used for pl sql programming?

994

Is mysql still popular?

935

Explain the cursor lock types?

1063

What are the different types of indexes available in sql server? : sql server DBA

1213

What is an Entity?

859

what is a primary key? : Sql dba

1043

Is microsoft access going away?

839

Explain nested join?

992

how can we optimize or increase the speed of a mysql select query? : Sql dba

956

What are the three pl sql block types?

1016

What do you mean by tablesample?

1089

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