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)
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Neo4j (82)
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Firebird (5)

Database Management (1411)
Databases AllOther (288)

Databases Interview Questions

Questions Answers Views Company eMail

How internally data stores in MyISAM and INNODB table types?

Zensar,

2732

why not null constraint showing its constraint type as 'c'

1 4649

how can get like this result table A col1 col2 --- ----- a A b B C C .. .. .. ... .. ... wants result like for a single column col1 ------ a,b,c,........n of data and another is col1 ------- A B C D ........ a b b d ........

TCS,

2 5058

without using count(*) and rownum how can we count total record in a table

AC, HP,

5 10171

What is the basic difference between a sql and stored procedure ?

L&T,

2 6819

Which is the best place to learn hadoop?

1 5314

write sub query for eliminating duplicate rows using analytical function?

Metric Stream,

3 12997

what is switch column,colums cost in oracle?

Metric Stream,

3676

what are the tunnig tables you used for tuning a query and tell me some of coloumns in that tuning tables?

Metric Stream,

1 9314

maximum database size of mysql database

2 5378

we have a package and we have grants to execute that package inside of that we have table, here we don't have privileges to this table? whether this package will execute or not?

TCS,

3 8876

you are sorting a table using "order by"(descending) clause of a column which contains a null value...whether that row containing null value will come first or last in the output??

BirlaSoft,

2 5853

display records from 5 to 9 using rowid or rownum

Agile Software,

5 16048

when i declare date data type in sql ,i inserted the date 22-10-2012,but my result is in different date 1894-07-11 any one pls help me what's wrong in my query Create table orders(od_id int,od_name varchar(10),od_date date) insert into orders values(1,'sai',22-10-2012) and any one pls suggest what i can learn for 3 years real time experenice in sql because i am looking for database field

1 3279

determine the minimum salary of the employee and his details who join on the same date

3 6118

Un-Answered Questions { Databases }

Can a table be moved to different filegroup?

976

What are the tools for Oracle ?

1062

Any work done in oracle workflow builder. Did you customize or build a new workflow?

What is count * in sql?

996

What you can use regular expression for in mysql? Support your answer with an example?

914

How do you maintain a database?

941

What are the various restrictions imposed on view in terms of dml?

965

What is meant by query optimization?

857

What are logical database components? : SQL Server Architecture

1035

What is the maximum number of rows in access 2010?

887

What does seeding a database mean?

964

What purpose does the model database server? : sql server DBA

1189

What is the main reason behind using an index?

1017

Hi friends can u send the oracle 9i full version download link?????????????? please reply ?

1865

What are types of storage modes? : sql server analysis services, ssas

1042

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