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

can u tell me how many types of oracle and which type all detail in oracle (suppose all history of oracle )

IBM, Oracle,

1 4597

which is the best training centre for learning oracle?

13 19444

what is the difference between unique and primary key

5 6075

Please let me know if UNION ALL and Natural Join does the same operation and are same...

iGate,

7 14890

what are the differences of where and if in SAS?

2196

how to generate XML out of QUERY?

McAfee,

1 5190

How to delete duplicate records from a table?(for suppose in a table we have 1000 Records in that we have 200 duplicate Records , so ,how to findout that duplicate Records , how to delete those Records and arranged into sequence order? one more thing that there is no primary key at all)

Infosys, McAfee,

5 10938

How to delete particular value in the column of a table.Is it possible or not?if possible give it as in query.

Intelenet,

8 32852

hi i gone though satyam interview. what is Acid Properties?

Satyam,

2 5966

what are batch in sql server?

Satyam,

2 10064

Difference Between varchar and nvarchar datatype?

Satyam,

3 14237

Difference between sql server 2000 and sql server 2005?

Aditi Tech, eInfochips, GE, HCL, IBM, Masim Infotech, NIIT, Satyam, Systems Domain,

11 53156

what is normalization? what is denormalization?

Satyam,

9 35086

what is extended StoreProcedure ?

Satyam,

3 6827

Different Types of Functions ?

Satyam,

2 12743

Un-Answered Questions { Databases }

What are the types of optimization?

961

what is the difference between Tabular and Matrix report?

170

Why stored procedure is better than query?

946

Is left join same as inner join?

1128

Is a foreign key always unique?

942

How to know, what indexes exist in a collection?

What is an external table?

1020

what are the different functions in sorting an array? : Sql dba

1018

What is metadata in mongodb?

What is pdo in database?

900

How do I add a sybase driver to sql developer?

866

What is a primary key called that is made up of more than one field?

1351

Tell me about normalization in DBMS.

995

can you implement data mining in SSRS?

148

What is the difference between form and report in ms access?

905

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