You're reading from SQL Query Design Patterns and Best Practices

Product typeBook

Published inMar 2023

Reading LevelIntermediate

PublisherPackt

ISBN-139781837633289

Edition1st Edition

Languages

SQL

Concepts

Database Programming

Authors (6):

Steve Hughes

Dennis Neer

Dr. Ram Babu Singh

Shabbir H. Mala

Leslie Andrews

Chi Zhang

View More author details

Identifying data to be aggregated

To identify the data that you are going to aggregate in the initial dataset that you have created, it is important to understand the story that you are trying to tell about the data. Some items will need to be counted, some will need to be summarized, and some will need to be aggregated by summarizing and counting. For example, if you are interested in doing an analysis of the data showing how many times an item has been ordered, then this would be an example of when you would aggregate the data by performing counts. If you are looking at data to see how many sales have occurred or the profits that have been made, this would be an example of summarizing the data. In addition, you may be interested in the average profit for a time period or the earliest and latest that an order has been delivered.

With these aggregations in place, the size of the dataset will be reduced, and you will be able to perform several other calculations based on these aggregations...

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SQL Query Design Patterns and Best Practices

Published in: Mar 2023Publisher: PacktISBN-13: 9781837633289

Authors (6)

Steve Hughes

Steve Hughes is a senior director of data and analytics at 3Cloud. In this role, he focuses on growing the teams' skills and capabilities to deliver data projects with Azure. In his 20 years of experience in technology, much of the time was spent on creating business intelligence (BI) solutions and helping customers implement BI and cloud solutions. He is passionate about helping customers understand that data is valuable and profitable. Steve has recently been diagnosed with ALS but continues to work and share with others what he has learned. Steve is also the founder of Data on Wheels where he blogs with one of his daughters on topics such as data, analytics, and work enablement
Read more about Steve Hughes

Dennis Neer

Dennis Neer is a senior architect of data and analytics at 3Cloud. In this role, he focuses on working with clients to design Azure solutions for their data and analytic needs to improve their business decision-making process. This includes using tools such as SQL Server databases, Synapse, data lakes, and Power BI. In his 30 years of experience in technology, much of the time was spent on designing and building database and visualization solutions. He is passionate about helping businesses to understand data and use it to their advantage during their decision-making process
Read more about Dennis Neer

Dr. Ram Babu Singh

Dr. Ram Babu Singh is a Microsoft Certified Professional with a Ph.D. in computer science. He is a lead architect of data and analytics at 3Cloud, using complex data analytics and data science solutions. In his 20 years of career, over a decade was spent in leadership positions providing data science and data platform solutions to the world's top IT consulting companies. He has been published in international journals and has a patent in his name
Read more about Dr. Ram Babu Singh

Shabbir H. Mala

Shabbir H. Mala is a director of data and analytics at 3Cloud. He has over 23 years of experience in thought leadership and consulting, developing complex data solutions, business systems, and processes using Azure Data Services and Power BI. He currently manages a team of over 40 principals and senior architects focusing on business growth, successful project delivery, and client experience. He has done talks at Power BI conferences as well as user groups. He has been awarded Microsoft FastTrack Solution Architect in 2021 and 2022. He is currently living in Chicago, married, and has three beautiful kids
Read more about Shabbir H. Mala

Leslie Andrews

Andrews is a lead data architect of data and analytics at 3Cloud. Working in the IT sector for over 20 years in local government, electrical supply, law enforcement, and healthcare, she has broad experience to draw from to assist clients in making data more accessible for end users. Leslie's expertise includes SQL development, ETL, data warehousing, data modeling, and analytics. Leslie currently holds several Microsoft certifications related to Azure technologies for data engineering. She approaches each day as an opportunity to use data and technology to make it easier for others to do their daily work. Leslie has been doing public speaking since 2015, was an IDERA ACE in 2019, and is a supporter of and contributor to the SQL community
Read more about Leslie Andrews

Chi Zhang

Chi Zhang is a lead data architect at 3Cloud. After completing her master's degree at Carnegie Mellon University, she worked in data consulting for the past 5 years. She has helped clients from various industries to deliver customized data solutions within Azure. Focusing on ETL, data warehousing, data modeling, and BI reporting, Chi solves data problems for clients and builds data solutions that provide business users with better operational insights and a smoother experience. Recently, she has continued to grow her footprint in the Azure community: earning certifications in Azure data engineering and data science, giving her first public tech talk, co-authoring a technical book, and becoming an active contributor to the SQL community
Read more about Chi Zhang

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Identifying data to be aggregated

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