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

You loss one datafile and DB is running in ARCHIVELOG mode. You have full database backup of 1 week old and partial backup of this datafile which is just 1 day old. From which backup should you restore this file?

2 4183

what is architecture of your datastage project??? i came across this question many times in interviews in specific what can i answer plz help me

IBM,

1 4080

can i create trigger on synonym is it possible or not please help me

CGI,

4 10784

Can I recover a damaged SQL Server 2008 database with the undamaged .mdb and .ldf files?

Apple,

3 6655

I Defined SP1, Sp2 (sp=StoreProcedures)In Package Specification but I Implemented Sp1, sp2, sp3, sp4, sp5 then What type of Error You will find????

Infosys,

3 11546

If i insert record in table A and these record should update in table B by using Trigger.How to achieve this.

Saama Tech, TCS,

4 10516

Can we create SP inside SP ? If no Y ? If yes Y ? Explain with an example ?

IBM, L&T,

3 6918

In the below query i have performed the commit transaction statement but still the values after the save are not saved. Can you please let me know why are the statements after save are rolled back even after commiting the data. help me with the understanding declare @trans2 varchar(10)='transaction2' begin transaction @trans2 insert into emp values(100,'xy',600); save transaction @trans2 insert into emp values(200,'pq',700); insert into emp values(300,'pq',800); commit transaction @trans2 rollback tran @trans2

AllState,

1 3338

What are joins, explain all types of joins?

Bravura Solutions,

2221

Do you know about aggregate functions? What is row num function? Can it be used all databases?

Bravura Solutions, Cap Gemini,

1 4405

Write query to fetch second maximum salary from employee table.

Bravura Solutions, HCL,

4 7276

What is your daily office routine?

Data Vision,

2220

What is difference between Sql server and MySql database? It may be silly question but i really dont know.

2053

Suppose database is running slow, what will you do?

2472

what is scan listener.

2181

Un-Answered Questions { Databases }

What is the structure of a database?

876

How to set database to be read_only in ms sql server?

957

Does google use sql?

914

What are the purposes of using enum and set data types?

888

What is xdr?

930

define aggregate functions.

875

How to find the unique values if the value in the column is repeated?

921

How to rename a tablespace in oracle?

1035

Explain about builtinadministrator?

989

Explain about Joins?

938

What stored by the tempdb ? : sql server database administration

1008

What happens if we shrink log file in sql server?

913

How to start and end transact-sql statements?

971

What is the difference between having clause and where clause?

1011

What is ms access and features?

763

For More Un-Answered { Databases } Questions Click Here