Databases Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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DB Architecture (141)
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Database Management (1411)
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Databases Interview Questions

Questions Answers Views Company eMail

how many non clustered index in sql server 2008,2010,2012

Accenture,

2 7259

what is the difference between table and view

1 3376

I have a task regarding access database. I and my organization is using access database to maintain my access files in well mannered way. But due to varied reasons access file showing error message Error 3112: Your access database got corrupted will not be able to show the database. Due to this error message I will not be able to access my access database. I don't have any idea how to recover access database or how to fix access database errors without affecting my original database????? Is there any relevant solution to repair access database?????

1958

plss anybody specify tha constrian management system in dbms

Police Constable,

2206

In table a 1lakh data is present,in table b 20 thousand data is present, to get unique data from table a and b which join to be considered. whether right outer join or left inner join.

GE,

2 5440

I have 2 table A and B. In A 1 lakh record is present. In b 20 thousand data is present. To get the unique data from table A and B which join we should prefer left inner join or right outer join. Please answer.

GE,

4 10128

if table named a is there and 4 records are there then how to swap (1 and 3) and (2 and 4) records at a time

1 3886

The use of LAST_VALUE() AND FIRST_VALUE() with an example

Amazon,

1 5123

.dbf file corrupted Dear Friends, I am using DBF file in Foxpro. DBF file corrupt and show message "Not a database file" Waiting for your reply. With regards!

3 6269

How to genrate automaticlly empid like gt001

4 5877

. have a tablle like this: cust acc ----------- a 1 b 2 b 3 c 4 c 5 c 6 I Want below o/p: cust acc --------------- a 1 b 2|3 c 4|5|6 Please any one can you have any ideas share me. I have urgent requirement. CUST ACC a dv b fg b bh c mk c cl c so result:- A B c dv fg mk bh cl so

3 6479

when normalization is required

HCL,

3 7911

I have a table like this Table Name:Products Productid Price 1 10 1 10 2 20 3 30 3 30 But i want to output like this. productid price 2 20. please replay me.

TCS,

3 5916

I have 2 tables with 1 million rows each. I have updated 1 row in first and 1 million update on second table. Now I commit both the updates. Which one will commit fast and Why?

2679

There are 100 datafiles, numbered from 1 to 100. File number 10 is deleted and it has 500 MB of data. The database is working in archive log mode. How can be the database recovered ? While doing recovery the archive logs applied are from nos 1 to 100, but 50 gets corrupted. What do we do? Can we proceed further? If so how?

2169

Un-Answered Questions { Databases }

How many rows can postgresql handle?

993

Why having clause is used in sql?

1020

What is partition by in sql?

1127

tell me about various levels of constraint. : Sql dba

1075

What are the restrictions applicable while creating views? : SQL Server Architecture

1085

What is microsoft access?

906

What is the sql case statement used for?

1133

How do I rename a mysql database?

1005

What is difference between statement and preparedstatement?

1062

What is the difference between inner join and equi join?

1042

How to delete duplicate rows?

1039

What are the difference between primary keys and foreign keys?

1017

What do you mean by authentication modes in sql server?

1135

What are recommended options to be used while using db mirroring? : sql server database administration

1228

What is a sql join?

1082

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