In this tutorial, you will be practicing some of the most common data cleaning techniques in SQL. You will create your own dummy dataset, but the techniques can be applied to the real world data (of the tabular
In this live training, you'll learn about data cleaning, shaping and loading techniques and learn about common database schemas for organizing tables for analysis.
课程链接在这里:SQL for Data Analysis 课程一共有七节课: Basic SQL SQL joins SQL Aggregations SQL Subqueries & Temporary Tables SQL Data Cleaning [Advanced] SQL Window Functions [Advanced] SQL Advanced JOINS & Performance Tuning 下面以第一节课为例,老师先是通过视频的形式讲解相关的概念: 美国人嘛,...
This tutorial is designed for people who want to answer questions with data. For many, SQL is the "meat and potatoes" of data analysis—it's used for accessing, cleaning, and analyzing data that's stored in databases. It's very easy to learn, yet it's employed by the world's largest...
SQL Tutorial——w3schools (示例教程)入门之后,就要多学学T-SQL语言了。除了51自学网的SQL Server数据库教程外,w3schools是一个很好的资源库,它不止讲解T-SQL语言的知识点,还有一个在线的示例数据库提供给用户,可以随时随地进行练习。 Head First SQL——Head First系列(文字教程)因为是文字教程,所以贴的是豆瓣...
Great elaborations and step to step tutorial. I enjoy so far 有帮助吗? Agada Stephen M. 评分:5.0,满分 5 分4 个月前 AM It has been an awesome journey. My knowledge on DA has improved and I can say it is worth it. 有帮助吗? 显示所有评论 Digital Learning Academy 的更多课程 ETL/...
SQL Tutorial Learning Logs SQL Projects COVID-19 Data Exploration Nashville Housing Data Cleaning SQL Murder Mystery Game Company Layoffs Adidas Sales Analysis Pizza Sales Analysis Target Sales Analysis(sql-python-project) DAY 1 of 'Learning SQL' What is SQL? SQL (Structured Query Language) is a...
If you work in data, you’ll write SQL queries all the time. So how do you write efficient SQL queries that are optimized for performance? This tutorial will help you with just that. SQL 7 Modern SQL Databases You Must Know in 2024- Jun 28, 2024. ...
Our Data Environment This tutorial is based onExercises 2 and 3of our O’Reilly course,Managing Data Downtime. You’re welcome to try out these exercises on your own using a Jupyter Notebook and SQL. We’ll be going into more detail, including exercise4, in future articles. ...
I was sick of changing context in Azure Data Studio while cleaning up things discovered in our vulnerability assessments. Changing things via PowerShell I wanted to be cautious with drops across multiple subscriptions, so I started with a single subscription. I use Ghostty for my… Continue Readi...