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 are the syntax and use of the coalesce function?

1227

What is the usage of sql functions?

1164

What is the requirement of self-join?

1154

What is the difference between clustered and non-clustered index in sql?

1035

What is the unique index?

1070

What are the subsets of sql?

1156

What is an inconsistent dependency?

1057

What is a data manipulation language?

1040

Is it possible to sort a column using a column alias?

1063

What are the types of operators available in sql?

1094

What is a data definition language?

1162

What are tables and fields in the database?

1139

Which are the different case manipulation functions in sql?

1046

What is the difference between sql, mysql and sql server?

1127

Explain character-manipulation functions?

1152

Un-Answered Questions { Databases }

What ports does postgresql use?

896

List out the oracle forms configuration files?

1090

how do you add a developer to a trusted publishers list?

868

What is synchronized subquery?

1184

Why do we use triggers?

981

What privilege is needed for a user to create tables in oracle?

968

What is sequences in postgresql?

852

What are the properties of a primary key in DBMS?

974

State the difference between union and union all?

949

What is rownum and rowid?

1051

What is data model in dbms?

931

How does propagation differ between Advanced Replication and Snapshot Replication (read-only)?

2063

What is pl sql block in dbms?

1021

Which data types generate inaccurate results if used with an = or <> comparison in a where clause of a sql statement?

1076

What port does postgres use?

784

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