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Code for "Advanced data transformations in SQL" free live workshop - josephmachado/adv_data_transformation_in_sql

Joins represent the denormalization of data to create dimensions and add dimension attributes to fact tables for reporting. Group bys enable the creation of metrics that determine how your data is used to make decisions. If you have wondered Why do your joins often end up in a dense block that's hard to pick apart. Why are people running nearly identical queries with only different join combinations. How to avoid losing data when performing joins How group bys have been used to mask underlying data modeling issues Why a group by all is considered a red flag Then this post is for you. In this post, we will cover how to use joins and group bys, as well as what to look out for when using them. By the end of this post, you will know what to watch out for when you perform joins or group bys.

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An attempt to explain the estimation process in statistics in the simplest form.

This dataset shows the Battery Electric Vehicles (BEVs) and Plug-in Hybrid Electric Vehicles (PHEVs) that are currently registered through Washington State Department of Licensing (DOL).

SUMMARIZE is a very powerful and very complex function to use. This article describes its internal behavior, and provides guidance on how to use it. If you

The context transition in DAX is the transformation of row contexts into an equivalent filter context performed by CALCULATE and CALCULATETABLE. Managing th

Riipen is a leading experiential learning platform helping educators, students, and organizations collaborate on real-world projects.

Discover the differences between Databricks and Snowflake and the similarities they share.

Understanding the Basics and Advanced Levels of Database Normalization

Whether it's for your workplace or home project, learning how to design a database is a valuable skill. Let's take a look at six easy steps on how to design a …

A community-made collection of public APIs about music. Find these and many other great resources for your projects.

Only Wrike's work management platform gives your team full visibility and control over all your tasks and projects. Project management software has never been more collaborative.

API Documentation for Alpha Vantage. Alpha Vantage offers free JSON APIs for realtime and historical stock market data & options data with over 50 technical indicators. Supports intraday, daily, weekly, and monthly stock quotes and technical analysis with charting-ready time series.

Explore and run machine learning code with Kaggle Notebooks | Using data from multiple data sources

Here is the list of Excel Formulas and Functions. We have included All Excel functions, Description, Syntax. Explained with Example Formulas.

Let’s go on an adventure into the amazing world of AdventureWorks Database!

News for the next generation about markets, business, technology, and the culture of money.

Dive into the world of data with Voronoi by Visual Capitalist. Discover captivating visualizations like charts and maps, all sourced transparently from renowned creators globally. Uncover the stories data can tell!

The Wisconsin State Climatology Office provides climate information to Wisconsin residents, climate scientists, and government agencies.