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 the purpose of self join?

1043

What is the maximum length of an alert name?

1047

What is a primary index?

982

What is query optimization process?

1089

What is a non equi join?

1028

What is a db view?

954

What is the use of commit?

1065

What is a covering index?

1051

What is difference between count (*) and count 1?

985

What is normalization process?

1248

What is difference between rownum and row_number?

1028

What is meant by indexing files?

1103

What is candidate key with example?

1039

What is the purpose of optimization?

1067

What is the full form of ddl?

979

Un-Answered Questions { Databases }

What is function and procedure?

1082

How you can create a simple query in access 2013?

893

what is the difference between delete and truncate statement in sql? : Sql dba

1361

What is auto invoicing? : oracle accounts receivable

1243

How can a single instance environment be converted into rac environment and how will they be different?

Does toad work with postgres?

832

What is select query in mysql?

970

How do I remove sql plus from windows 10?

1150

What is the size of transaction log file?

995

Define view, sequence and index in DBMS.

995

What is a document index?

1080

Could you please provide oca (oracle 10g) dumps for my certification ?

5247

How do I restart mysql on windows?

1015

Why do we use triggers?

1024

What are unicode character string data types in ms sql server?

1353

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