1. KAASHIV INFOTECH
The Asia, India, Tamil Nadu Book Of Record
Holders
SQL SERVER –Booklet
- Gives you the interview tips in SQL Server
SQL SERVER Interview Questions-2014
2. KAASHIV INFOTECH
Welcomes you to the Expert Voice Corner
Mr.J.Venkatesan Prabu
Venkatesan Prabu Jayakantham (venkat) has more than 8 years experience in the
Microsoft Technologies such as VB.Net, ASP.Net, C#.net, SSIS, SSAS, ADO.Net,
etc., He is the Managing Director of KAASHIVINFOTECH
(http://www.kaashivinfotech.com/),a software company in Chennai. Before that,
he worked in HCL Technologies (India and Australia) for six years as Project
Lead. As a service motive, Venkat contributed more than 700 articles which is
read by the developers in 170 countries (400 developers per day)
(http://venkattechnicalblog.blogspot.com/). Aligned with KaaShiv InfoTech’s
mission,he met more than 20,000 young minds and spreaded Microsoft
Technologies / Career guidance programs. Venkat won many awards in his
career, which includes Prestigious Microsoft MVP (Most Valuable Professional)
award for the years 2008,2009,2010,2011,2012,2013 and won many awards.
List of other awards in his career,
3. Microsoft certified Smart .Net Candidate in 2004
Most valuable member for dotnetspider site in 2007
HCL SQL Subject Matter expert (SME - SQL Server) for the year
(2008,2009)
HCL Special contribution award winner on Dotnet skills for year(2008)
HCL SQL Knowledge Champion for the year 2009
Mind Cracker MVP on SQLServer –2010 for the year 2010,2011
INETA champion - Gold Member – 2010 for the year 2010 HCL Service
Contribution Award for the year 2010
Leading Lights "Rising Star" award from Common Wealth Bank, Australia
for the year 2010
TECHNICAL CERTIFICATION
Cisco certified Network Associate (CCNA) – 2004
Microsoft Certified Application Developer (MCAD) – 2005
4. ACKNOWLEDGEMENT
I would like to thank my family members for their support and
encouragement. Without their support it would be impossible for me to
publish this e-book. I would also like to thank my KaaShiv InfoTech team
for their support to publish this e-book.
DISCLAIMER
All rights reserved. No part of this book may be copied, adapted,
abridged or stored in any retrieval system, computer system,
photographic or other system or transmitted in any form or by any means
without the prior written permission of the copyright holders. Any breach
will entail legal action and permission without further notice.
5. 1. Which TCP/IP port does SQL Server run on? How can it be changed?
SQL Server runs on port 1433. It can be changed from the Network
Utility TCP/IP properties.
2. How to generate row number in SQL Without ROWNUM
Generating a row number – that is a running sequence of numbers for
each row is not easy using plain SQL. In fact, the method I am going to
show below is not very generic either. This method only works if there is
at least one unique column in the table. This method will also work if
there is no single unique column, but collection of columns that is
unique
SELECT name, sal, (SELECT COUNT(*) FROM EMPLOYEE i WHERE o.name
>= i.name) row_num
FROM EMPLOYEE o
order by row_num
3. What are the difference between clustered and a non-clustered index?
I. A clustered index is a special type of index that reorders the way
records in the table are physically stored. Therefore table can have
only one clustered index. The leaf nodes of a clustered index contain
the data pages.
6. II. A non clustered index is a special type of index in which the
logical order of the index does not match the physical stored order of the
rows on disk. The leaf node of a non clustered index does not consist of
the data pages. Instead, the leaf nodes contain index rows.
4. What are the different index configurations a table can have?
1. A table can have one of these index configurations:
2. No indexes
3. A clustered index
4. A clustered and many non clustered indexes
5. A non clustered index
6. Many non clustered indexes
5. What are different types of Collation ?
Sensitivity?
1. Case sensitivity - A and a, B and b, etc.
2. Accent sensitivity
3. Kana Sensitivity - When Japanese kana characters Hiragana and
Katakana are treated differently, it is called Kana sensitive.
4. Width sensitivity - A single-byte character (half-width) and the same
character represented as a double-byte character (full-width) are
treated differently than it is width sensitive.
7. 6. What is OLTP (Online Transaction Processing)?
In OLTP - online transaction processing systems relational database design
use the discipline of data modeling and generally follow the Codd rules of
data normalization in order to ensure absolute data integrity. Using these
rules complex information is broken down into its most simple structures (a
table) where all of the individual atomic level elements relate to each other
and satisfy the normalization rules.
7. What's the difference between a primary key and a unique key?
Both primary key and unique key enforces uniqueness of the column on
which they are defined. But by default primary key creates a clustered index
on the column, where are unique creates a nonclustered index by default.
Another major difference is that, primary key doesn't allow NULLs, but
unique key allows one NULL only.
8. What is the difference between a Local and a Global temporary table?
A local temporary table exists only for the duration of a connection or, if
defined inside a compound statement, for the duration of the compound
statement.
A global temporary table remains in the database permanently, but the rows
exist only within a given connection. When connection is closed, the data in
the global temporary table disappears. However, the table definition
remains with the database for access when database is opened next time.
8. 9. What is the STUFF function and how does it differ from the REPLACE
function?
STUFF function is used to overwrite existing characters. Using this
syntax, STUFF
(string_expression, start, length, replacement_characters), string_expressio
n is the string that will have characters substituted, start is the starting
position, length is the number of characters in the string that are
substituted, and replacement_characters are the new characters interjected
into the string. REPLACE function to replace existing characters of all
occurrences. Using the syntax REPLACE
(string_expression, search_string, replacement_string), where every
incidence of search_string found in the string_expression will be replaced
with replacement_string.
9. 10. What is PRIMARY KEY?
A PRIMARY KEY constraint is a unique identifier for a row within a
database table. Every table should have a primary key constraint to
uniquely identify each row and only one primary key constraint can be
created for each table. The primary key constraints are used to enforce
entity integrity.
10. 11. What is UNIQUE KEY constraint?
A UNIQUE constraint enforces the uniqueness of the values in a set of
columns, so no duplicate values are entered. The unique key constraints
are used to enforce entity integrity as the primary key constraints.
12. What is FOREIGN KEY?
A FOREIGN KEY constraint prevents any actions that would destroy links
between tables with the corresponding data values. A foreign key in one
table points to a primary key in another table. Foreign keys prevent
actions that would leave rows with foreign key values when there are no
primary keys with that value. The foreign key constraints are used to
enforce referential integrity.
13. What is CHECK Constraint?
A CHECK constraint is used to limit
the values that can be placed in a column. The
check constraints are used to enforce domain integrity.
14. Error severity 13 indicates what?
Transactional deadlock errors.
This level of error severity indicates a transaction
deadlock error.
11. INTERNSHIP IN KAASHIV INFOTECH
-Best internship provider in Chennai
Web Application Designing
Project Documentation
Live Inhouse
Application Development
Windows ADO.NET Application
Template Designing-Live Template Designing, CSS
15. In which order do you perform an upgrade to SQL Server 2008
for replicated databases?
Distributor, Publisher, then Subscriber.
You always perform an upgrade in this order: distributor, publisher
and subscriber.
12. KaaShiv InfoTech Offers Best Inpant Training in Chennai.
The training at KAASHIV INFOTECH focus on developing the
technical oriented concepts that turn graduates into employable assets. Handled
only by professionals from MNC companies, we know how to equip you with
strong technologies fundamentals.
INPLANT TRAINING SCHEDULE FOR CSE/IT/MCA STUDENTS
Day Programme
Day 1 BigData (Practical Demos)
Day 2
Windows 8 App Development
(Practical Demos)
Day 3
Ethical Hacking (Facebook
Hack,Server/Website Hacking(20
Attacks)
Day 4
Cloud Computing (Live Server
Demo,Live Pjt Implementation)
Day 5
CCNA (-Networking-Router
Configurations Practical Demo)
13. INPLANT TRAINING SCHEDULE FOR ELECTRONIC/ELECTRICAL/EIE
STUDENTS:
Day Programme
Day 1 Embedded System (Embedded Program Designing ,Chip Burning)
Day 2
Wireless System (Device Designing,Controlling Fans with Wireless
Sensors)
Day 3 CCNA (-Networking-Router Configurations Practical Demo)
Day 4 Ethical Hacking (Facebook Hack,Server/Website Hacking(20 Attacks)
Day 5
Matlab (Capture Image,Processing, Animate Images-Practical
Demos)
14. MECHANICAL/CIVIL INPLANT TRAINING SCHEDULE:
Day Programme
Day 1 Aircraft Designing
Day 2 Vehicle Movement in
Airports
Day 3 3D Packaging Designs
Day 4 3D Modeling
Day 5 3D Window Shading
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17. Address:
KAASHIV INFO TECH
Shivanantha Building,
X41, 5th Floor,2nd Avenue,
(Near Ayyappan Temple)
Anna Nagar, Chennai = 600040.
Send Us Your Request Email To arun@kaashivinfotech.com,
kaashiv.info@gmail.com,
venkat@kaashivinfotech.com
Contact Number : 9840678906 ;; 9003718877 ;; 9962345637 ;
Visit our other websites:
http://inplanttrainingchennai.com/ - Inplant Training Portal
http://inplanttrainingchennai.com/ - Internship Portal
jobsanddumps.com – Job Portal
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