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

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Databases Interview Questions

Questions Answers Views Company eMail

How can we Update a table with out using UPDATE command?

1 5977

What is user stored procedure & it purpose?

Wipro,

4 8443

wHAT IS THE difference between foreign key and reference key

1 4289

How do we rollback the table data in SQL Server

3 17019

write a qurey for finding the length of the sting.

Infosys, TCS,

6 15029

1. Using the XML Document below, with the URI “recipe.xml” define the following queries in XQuery: a.) Give the names of all breakfast in the menu. b.) Select breakfasts that have price lower than $7.00? Belgian Waffles $5.95 two of our famous Belgian Waffles with plenty of real maple syrup 650 Strawberry Belgian Waffles $7.95 light Belgian waffles covered with strawberries and whipped cream 900 Berry-Berry Belgian Waffles $8.95 light Belgian waffles covered with an assortment of fresh berries and whipped cream 900 French Toast $4.50 thick slices made from our homemade sourdough bread 600 Homestyle Breakfast $6.95 two eggs, bacon or sausage, toast, and our ever-popular hash browns 950

2153

What is the difference between a primary index and a secondary index? What is a duplicate data entry in an index? Can a primary index contain duplicates?

IBM,

5 32563

What is the differnce between Order by and Group by

1 4403

where do you use Isolations?give me some exmpale?

1 5286

In which year relase the 7.0& 2000 & 2005?

1 3788

wht r the base tables & primary key for BOM& WIP modules

Satyam,

1 5930

what is exact difference between drop and truncate table.

3 7256

Anybody can tell me, how do we find second largest emp salary from emp table.. Thanks in advance ...

Cognizant, ID, NTTF Nettur Technical Training Foundation, Sony, Verizon,

10 15497

Write an SQL query if u want to select the data from one block which intern reflects in another block ? thanx,do reply

Covansys,

1 6215

i have 4 tables.. T1, T2, T3, T4.. these tables have the same structure and they store the information entered in different years.. T1 stored 2002, T2 stored 2003, T3 stored 2004 and T4 stored 2005.. i want to copy contents in T1 to T2, T2 to T3, T3 to T4 and T4 to T1.. how do i do that? Temp tables cannot be used..

4 7790

Un-Answered Questions { Databases }

Explain the Logical Schema of Database

1020

Can foreign key have duplicate values?

902

What is dual table oracle?

1002

What is meant by Active-Passive and Active-Active clustering setup?

1195

Why trigger is used in sql?

989

How to find the duplicate rows count from employees table in oracle?

1111

In Oracle Clinical 4.5.0, can the VIEW_TEMPLATE_ID column in DATA_EXTRACT_VIEWS table contain NULL value?

2350

Can we invoke one form from another in a multi-forms application?

1143

What are instead of triggers?

1057

How to display Row Number with Records in Oracle SQL Plus?

1058

In my application I have a process which picks the scanned files (tif format) from a shared location and it links to application and shown on it.The actuall issue is that my process picks the file before it is completly written or scanned which results in displaying few parts of the image or incomplete image.I need to check if the file is not completly scanned or written then do not link it to application.Please help if any body tell me that how can i check that file is in written phase or locked through DTS.thanking you in advance

1980

What are binary string data types in ms sql server?

1314

Can a table have multiple primary keys?

915

What is the difference between left outer join and left join?

1008

What is the chart in report?

163

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