Databases Interview Questions
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Excellent job opening with one of our client in Hyderabad About Client : It is an American e-commerce company based in Seattle, Washington, a leading online retailer of products that inform, educate, entertain and inspire.

1 2400

Hi Team, This is kartik, I recently completed my B-tech. Importance of posting this question is for to know the best books on SQL(MYSQL/Oracle)? I like SQL concept's so much, at the same time i decided to choose SQL for my career purpose. So please suggest me the best books that are very helpful for a fresher to improve concepts like (SQL/PLSQL)Basics, programming concepts, architectures etc. Please consider my request as an important one. I am very thankful to you for providing this opportunity. If possible can you please send the names of books for my personal id also: karthikgdv1206@yahoo.com. Thanks, Kartik T

1741

SELECT ROUND(TRUNC(MOD(1600,10),-1),2) FROM dual;

10 74087

How can I create a table from another table without copying any values from the old table?

8 10707

What is the disadvantages of index?

TCS,

3 7342

in table there r so many rows write a query which two rows r updated last two day befor?

Exilant,

3 8919

Hi All, I want to display all duplicate records in the table. My query has to fetch all the records which are duplicate(First Name or Last Name). Also I want the ability to also pull names where there might be a middle initial placed in the end of the first name field, (i.e., "Maria Z. " vs. "Maria") as well. Please guide me to find this. Table: ID FirstName LastName 1 Zach H Hoffman 2 Zach Hoffman 3 Troy Hoffman 4 Shawn Livermore 5 Prem S 6 Jony Hoffman H 7 Zach Modan I need the query to filter......... ID FirstName LastName 1 Zach H Hoffman 2 Zach Hoffman 3 Troy Hoffman 6 Jony Hoffman H 7 Zach Modan I hope this example will give you clear idea..... Thanks in Advance Prem

2 3643

How to remove duplicate rows from a table?.

3 6772

There is a table, In one column it has implemented a index, but the index is disturbed by the regular dml statements.. but still we need to keep the index. how it is possible?

Cognizant,

1 5717

Suppose I have to create a view on a table, that is not yet been created by DBA. I khow the table structure. Is it possible to create the view before DBA creates this table? If yes then how? Is it possible to create synonym in this way?

IBM, Metric Stream,

4 11133

select names starts with a,b,c

Scope International,

8 10745

1)how to Take Backup in sql server 2005 from Flash Drive

1 2536

I have one table,in that table (1)i have java1.1 version books are 2 and java1.5 version books are 4. (2).Net2.0 books are 3, .Net3.5 books are 2 (3)ABC1.6 books are 4, ABC2.0 books are 3. Now i want output is like Book Count Java 6 .Net 5 ABC 7 For this i need sql query, please help me if anyone how to get this result. Thanks, Seenu

Adea,

4 5410

How to convert a table data in XML format in sql server?

2116

how to do partition in sqlserver

TCS,

1966


Un-Answered Questions { Databases }

How do I run a trace in sql server?

498


Are left and right joins the same?

529


What do you know about Master Data & Transaction Info Package?

533


What is difference between views and tables?

463


What is the osql utility?

535






How do you performance tune a database?

485


What is the best database for big data?

568


How do I start mongodb on mac?

1


What do you understand by replication in sql server?

568


Why are sql functions used?

616


What is ms sql server triggers?

530


Explain some stored procedure creating best practices or guidelines?

516


If you are not sure what command does a particular unix function what is the best way to determine the command?

282


Is merge a dml statement?

520


What is the use of primary key?

535