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 does count (*) do in sql?

963

What are the types of join in sql?

1044

What is rank function in sql?

974

What are the types of index in sql?

1028

Can we join 3 tables in sql?

972

What are the types of triggers in sql?

1032

What are functions in sql?

918

Does oracle use sql?

886

What is sql and how does it work?

1108

What is not null in sql?

998

How do I count records in sql?

957

What are triggers in sql?

981

How do I run sql?

1105

What are sql indexes?

947

How do I create a sql script?

1066

Un-Answered Questions { Databases }

Define normalisation?

1070

What are the advantages of database system?

897

How do I run a sql script?

1072

Explain how you can copy a file to file content and file to pl/sql table in advance pl/sql?

972

What are the differences between “row_number()”, “rank()” and “dense_rank()”?

1065

Where do we use decode and case statements?

950

What is the use of attributehierarchyvisible ? : sql server analysis services, ssas

1028

What is an oracle recycle bin?

945

Explain phantom deadlock?

1195

What is insert query in mysql?

859

Mention the differences between unique key and primary key

894

What is computer end?

867

How can we encrypt and decrypt a data presented in a table using mysql?

991

What is difference between mongod and mongodb?

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

1032

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