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 pl/sql table? Why is it used?

1098

What is the difference between rollback and rollback to statements?

1103

How many types of triggers exist in pl/sql?

1141

What are some predefined exceptions in pl/sql?

1229

Explain the purpose of %type and %rowtype data types?

977

State few characteristics of pl/sql?

1026

What are pl/sql packages?

1166

What is postgresql? Explain the history of postgresql.

944

Provide an explanation about write ahead logging?

855

What are string constants in postgresql?

933

List different datatypes of postgresql?

865

What is multi-version control?

863

What are the indices of postgresql?

969

List different advantages of postgresql?

928

Provide a brief explanation of the functions in postgresql.

850

Un-Answered Questions { Databases }

Why join is faster than subquery?

1170

How do databases help businesses?

931

Why can there be only one clustered index and not more than one?

1047

Is keyword pl sql?

1057

how many values can the set function of mysql take? : Sql dba

1043

Mention the types of join?

946

What is logon trigger?

1165

Explain the dml?

1051

What are the disadvantage in file processing system?

1025

What is dba and functionalities of dba?

647

What is concurrency in oracle?

1061

issues involved in modeling and building data werahouses

2008

What is a performance monitor?

1029

What is the difference between stored procedure and user defined functions?

1243

How do you import data from another access database?

919

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