Top 50 Sql Tricky Interview Questions

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Top 50 Sql Tricky Interview Questions

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Author : Knowledge Powerhouse
language : en
Publisher:
Release Date : 2016-12-11

Top 50 Sql Tricky Interview Questions written by Knowledge Powerhouse and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-11 with categories.

This book contains tricky and nasty SQL interview questions that an interviewer asks. It is a compilation of advanced SQL interview questions after attending dozens of technical interviews in top-notch companies like- Oracle, Google, Ebay, Amazon etc.Each question is accompanied with an answer because you want to save your time while preparing for an interview.The difficulty rating on these Questions varies from a Junior level programmer to Architect level. Sample Questions are:How can we retrieve alternate records from a table in Oracle?Given a list of student names and grade. Write a query to print a comma separated list of student names in a grade.Write SQL Query to get Student Name and number of Students in same grade.Write SQL query to delete duplicate rows in a table?Write SQL query to get the second highest salary among all Employees?Write SQL Query to get Employee Name, Manager ID and number of employees in the department?Write SQL query to get the nth highest salary among all Employees.Given an Employee table with Manager_ID as column, print First name, Manager ID and Level of employees in Organization Structure?Why is the difference between NVL and NVL2 functions in SQL?What is the difference between UNION and UNION ALL?What are the reasons for de-normalizing the data?What is a Pseudocolumn?How can you find 10 employees with Odd number as Employee ID?What is the difference between DELETE and TRUNCATE in SQL?Which SQL feature can be used to view data in a table sequentially?What are the differences between CASE and DECODE in SQL?Write a SQL Query to get the Quarter from date.http://www.knowledgepowerhouse.com

Sql Server Interview Questions And Answers

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Author : Pinal Dave
language : en
Publisher:
Release Date : 2011-01-01

Sql Server Interview Questions And Answers written by Pinal Dave and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-01 with Client/server computing categories.

This book will flow in a "Question & Answer" mode from start to finish to help you grasp concepts faster and get to the point quickly. Once you understand the concepts, it gets easier to see twists using that concept within a scenario and to ultimately solve them. Though each of these chapters are geared towards convenience we highly recommend reading each of the sections irrespective of the roles you might be doing since each of the sections have some interesting trivia about working with SQL Server. In the industry the role of accidental DBA's (especially with SQL Server) is very common. Hence if you have performed the role of DBA for a short stint and want to brush-up your fundamentals then the upcoming sections will be a great review.

Sql Server Interview Questions

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Author : Shivprasad Koirala
language : en
Publisher:
Release Date : 2005-05

Sql Server Interview Questions written by Shivprasad Koirala and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-05 with Client/server computing categories.

Data Analysis Using Sql And Excel

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Author : Gordon S. Linoff
language : en
Publisher: John Wiley & Sons
Release Date : 2010-09-16

Data Analysis Using Sql And Excel written by Gordon S. Linoff and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-16 with Computers categories.

Useful business analysis requires you to effectively transform data into actionable information. This book helps you use SQL and Excel to extract business information from relational databases and use that data to define business dimensions, store transactions about customers, produce results, and more. Each chapter explains when and why to perform a particular type of business analysis in order to obtain useful results, how to design and perform the analysis using SQL and Excel, and what the results should look like.

Joe Celko S Sql Puzzles And Answers

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Author : Joe Celko
language : en
Publisher: Morgan Kaufmann
Release Date : 1997-03

Joe Celko S Sql Puzzles And Answers written by Joe Celko and has been published by Morgan Kaufmann this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-03 with Computers categories.

A compilation of Joe Celko's trickiest puzzles from his columns in "DBMS" and "Database Programming & Design" magazines, these pages include never-before-published puzzles and a variety of solutions. In his usual entertaining and informative style, Celko uses his puzzles to teach readers to write non-procedural programs and to introduce new methods and practical, useful applications of SQL implementation.

Top 30 Sql Interview Coding Tasks

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Author : Matthew Urban
language : en
Publisher: net-boss
Release Date :

Top 30 Sql Interview Coding Tasks written by Matthew Urban and has been published by net-boss this book supported file pdf, txt, epub, kindle and other format this book has been release on with Computers categories.

Ace The Data Science Interview

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Author : Kevin Huo
language : en
Publisher:
Release Date : 2021

Ace The Data Science Interview written by Kevin Huo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Big data categories.

Practical Issues In Database Management

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Author : Fabian Pascal
language : en
Publisher: Addison-Wesley Professional
Release Date : 2000

Practical Issues In Database Management written by Fabian Pascal and has been published by Addison-Wesley Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Computers categories.

The aim of this work is to provide a correct and up-to-date understanding of the practical aspects of crucial, yet little- understood core database issues. The author identifies fundamental concepts, principles, and techniques and assesses the treatment of those issues in SQL (both the standard and commercial implementations) and gives advice on how to deal with them. Topics covered include complex data types, missing information, data hierarchies, and quota queries. Annotation copyrighted by Book News, Inc., Portland, OR

Exploring Splunk

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Author : David Carasso
language : en
Publisher: Cito Research
Release Date : 2012

Exploring Splunk written by David Carasso and has been published by Cito Research this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Computers categories.

Big data has incredible business value, and Splunk is the best tool for unlocking that value. Exploring Splunk shows you how to pinpoint answers and find patterns obscured by the flood of machinegenerated data. This book uses an engaging, visual presentation style that quickly familiarizes you with how to use Splunk. You'll move from mastering Splunk basics to creatively solving real-world problems, finding the gems hidden in big data.