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

Explain what is object cache in neo4j. how many types of they are?

How to read/write files from pl/sql?

1050

Can there be more than one function with a similar name in a pl/sql block?

998

Explain the significance of the & and && operators in pl sql.

1017

Explain the methods used to protect source code of pl/sql.

1032

Does sql*plus have a pl/sql engine?

1082

What is the limitation on the block size of pl/sql?

1001

Explain implicit cursor.

1039

Explain mutating triggers.

1037

Give the different types of rollback segments.

1039

How can you use check constraints for self referential integrity?

979

How many types of database triggers exist?

1145

Give the various exception types.

999

List the parts of a database trigger.

1058

Explain oracle’s server parameter file.

1003

Un-Answered Questions { Databases }

Why does profiler use in mongodb?

Explain about protocol layer present in SQL server?

1219

What are the different types of languages that are available in the dbms?

1039

Are subqueries better than joins?

984

What are service-specific middleware?

1008

21. Using a set operator, display the client number of all clients who have ever placed an order and whose whose name does not contain the string Sm.

2120

what is the difference between delete table and truncate table commands? : Sql server database administration

1054

What are different categories of sql commands?

1141

What is app tier?

868

tell us something about heap tables. : Sql dba

1110

What are mysql data types?

1011

What are the database skills?

971

What do data architects do?

829

What does rownum mean in sql?

1039

What is the best free database software?

880

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