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SQL SERVER TUTORIALS

Learn about SQL Server Interview Questions. Kaashiv Infotech Offers SQL Server Interview Questions for our futher carrer. Kaashiv Infotech offers Inplant training, Internship and Course for Students in SQL Server.

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SQL SERVER TUTORIALS

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  1. KAASHIV INFOTECH The Asia, India, Tamil Nadu Book Of Record Holders SQL SERVER –Booklet 11 - 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.VenkatesanPrabu VenkatesanPrabuJayakantham (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. Why we cannot use column alias in where clause but we can use it in order by clause of select statement in sql server? For example, it is incorrect to write: SELECT Roll_No AS Id From Student WHERE Id > 1  While it correct: SELECT Roll_No AS Id From Student ORDER BY Id In sql server order of execution of different clauses of a select statement is following order:Clause of select statement Execution order FROM 1 ON 2 JOIN 3 WHERE 4 GROUP BY 5 WITH CUBE or WITH ROLLUP 6 HAVING 7 SELECT 8 DISTINCT 9 ORDER BY 10 TOP 11 It is clear the WHERE clause executes before the SELECT clause so WHERE clause has no knowledge about column alias of SELECT clause while ORDER BY clause executes after the SELECT clause so it know about column alias of SELECT clause.

  6. 2.Which command using Query Analyzer will give you the version of SQL server and operating system? SELECT SERVERPROPERTY ('productversion'), SERVERPROPERTY ('productlevel'), SERVERPROPERTY ('edition'). 3. What is SQL Server Agent? SQL Server agent plays an important role in the day-to-day tasks of a database administrator (DBA). It is often overlooked as one of the main tools for SQL Server management. Its purpose is to ease the implementation of tasks for the DBA, with its full- function scheduling engine, which allows you to schedule your own jobs and scripts. 4. Can a stored procedure call itself or recursive stored procedure? How much level SP nesting is possible? Yes. Because Transact-SQL supports recursion, you can write stored procedures that call themselves. Recursion can be defined as a method of problem solving wherein the solution is arrived at by repetitively applying it to subsets of the problem. A common application of recursive logic is to perform numeric computations that lend themselves to repetitive evaluation by the same processing steps. Stored procedures are nested when one stored procedure calls another or executes managed code by referencing a CLR routine, type, or aggregate. You can nest stored procedures and managed code references up to 32 levels.

  7. 5. What is Log Shipping? Log shipping is the process of automating the backup of database and transaction log files on a production SQL server, and then restoring them onto a standby server. Enterprise Editions only supports log shipping. In log shipping the transactional log file from one server is automatically updated into the backup database on the other server. If one server fails, the other server will have the same db and can be used this as the Disaster Recovery plan. The key feature of log shipping is that it will automatically backup transaction logs throughout the day and automatically restore them on the standby server at defined interval. 6. Name 3 ways to get an accurate count of the number of records in a table? SELECT * FROM table1 SELECT COUNT(*) FROM table1 SELECT rows FROM sysindexes WHERE id = OBJECT_ID(table1) AND indid < 2 7. What does it mean to have QUOTED_IDENTIFIER ON? What are the implications of having it OFF? When SET QUOTED_IDENTIFIER is ON, identifiers can be delimited by double quotation marks, and literals must be delimited by single quotation marks. When SET QUOTED_IDENTIFIER is OFF, identifiers cannot be quoted and must follow all Transact-SQL rules for identifiers. 8.What is NOT NULL Constraint? A NOT NULL constraint enforces that the column will not accept null values. The not null constraints are used to enforce domain integrity, as the check constraints.

  8. 9. How to get @@ERROR and @@ROWCOUNT at the same time? If @@Rowcount is checked after Error checking statement then it will have 0 as the value of @@Recordcount as it would have been reset. And if @@Recordcount is checked before the error-checking statement then @@Error would get reset. To get @@error and @@rowcount at the same time do both in same statement and store them in local variable. SELECT @RC = @@ROWCOUNT, @ER = @@ERROR

  9. 10. What is a Scheduled Jobs or What is a Scheduled Tasks? Scheduled tasks let user automate processes that run on regular or predictable cycles. User can schedule administrative tasks, such as cube processing, to run during times of slow business activity. User can also determine the order in which tasks run by creating job steps within a SQL Server Agent job. E.g. back up database, Update Stats of Tables. Job steps give user control over flow of execution. If one job fails, user can configure SQL Server Agent to continue to run the remaining tasks or to stop execution.

  10. 11. What are the advantages of using Stored Procedures? • Stored procedure can reduced network traffic and latency, boosting application performance. • Stored procedure execution plans can be reused, staying cached in SQL Server's memory, reducing server overhead. • Stored procedures help promote code reuse. • Stored procedures can encapsulate logic. You can change stored procedure code without affecting clients. • Stored procedures provide better security to your data. • 12. What is a table called, if it has neither Cluster nor Non-cluster Index? What is it used for? • Unindexed table or Heap. Microsoft Press Books and Book on Line (BOL) refers it as Heap. A heap is a table that does not have a clustered index and, therefore, the pages are not linked by pointers. The IAM pages are the only structures that link the pages in a table together. Unindexed tables are good for fast storing of data. Many times it is better to drop all indexes from table and then do bulk of inserts and to restore those indexes after that. • 13. Can SQL Servers linked to other servers like Oracle? • SQL Server can be linked to any server provided it has OLE-DB provider from Microsoft to allow a link. E.g. Oracle has an OLE-DB provider for oracle that Microsoft provides to add it as linked server to SQL Server group.

  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 14. How do you load large data to the SQL server database?BulkCopy is a tool used to copy huge amount of data from tables. BULK INSERT command helps to Imports a data file into a database table or view in a user-specified format. 15. What is Self Join? This is a particular case when one table joins to itself, with one or two aliases to avoid confusion. A self join can be of any type, as long as the joined tables are the same. A self join is rather unique in that it involves a relationship with only one table. The common example is when company has a hierarchal reporting structure whereby one member of staff reports to another.

  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

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  17. Address: KAASHIV INFO TECHShivanantha 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 https://plus.google.com/u/0/108546120202591604585 https://plus.google.com/u/0/b/110228862465265998202/dashboard/overview https://plus.google.com/u/0/b/117408505876070870512/dashboard/overview

  18. https://plus.google.com/u/0/b/104468163439231303834 /dashboard/overview https://plus.google.com/u/0/b/117640664472494971423/dashboard/overview KaaShiv InfoTech Facebook Page https://www.facebook.com/KaaShivInfoTech Inplant Training Program in Chennai https://www.facebook.com/pages/Inplant-Training-Program-in-Chennai/1402097696706380 Internship in Chennai https://www.facebook.com/pages/Internship-in-Chennai-KaaShiv/1446147235603704

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