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

what is constraints? Also explain the different types of constraints?

1027

What is mysql and why it is used?

1138

How to show table structure mysql?

1069

What is federated tables in mysql?

970

Explain the storage engines in mysql?

1060

What are the difference between mongodb and mysql?

1 1424

Write a query to find duplicate rows in table?

953

Write a query to fetch duplicate records from a table using mysql?

998

How to make a copy values from one column to another in mysql?

1078

How we can create index in mysql?

1027

What is mysql aggregate functions? Explain

1171

what is constraints?

1245

What's new in mysql 8?

1049

Is mysql is a programming language?

1045

List data types in mysql? Explain

975

Un-Answered Questions { Databases }

What is netlib for clipper?

950

How to check database size in sybase iq?

1045

How to run pl sql program in mysql?

1081

Explain “@@rowcount” and “@@error” in sql server?

1144

Users get the following error: ora-00055 maximum number of dml locks exceeded? What is the problem and how do you fix it?

572

What is the difference between natural join and equi join?

1018

How do you recover a lost control file?

What is the difference between execution of triggers and stored procedures?

1171

How can you find all the processes on your system?

617

how mysql optimizes distinct? : Sql dba

1135

If you are working Microsoft excel, which type of file you used .excel or .csv?

685

What are “lock” hints?

1110

What do you understand by anchoring in reports?

What is exit statement?

1066

What is the purpose of database management system?

1117

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