title
Power BI Project For Beginners | Sales Insights Data Analysis Project - 3 - Data Analysis Using SQL

description
In the previous video, we looked at data discovery for our sales insights data analysis project. In this video, we will look at mysql database that is owned by the falcons team. This database has all sales transactions, customers, products, and market information. We will analyse this database and then hook it up with power BI. In power BI we will perform ETL and data cleaning operations to make it ready so that we can build our dashboard. To download the SQL dump file: https://codebasics.io/resources/sales-insights-data-analysis-project (You can find the SQL queries and setup instructions in the Readme file) Install mysql: https://www.youtube.com/watch?v=WuBcTJnIuzo Khan academy SQL course: https://www.khanacademy.org/computing/computer-programming/sql#sql-basics Previous video: https://www.youtube.com/watch?v=9QiZ0-HZG_A&list=PLeo1K3hjS3utcb9nKtanhcn8jd2E0Hp9b&index=2 Next video: https://www.youtube.com/watch?v=6pifKxjyHd8&list=PLeo1K3hjS3utcb9nKtanhcn8jd2E0Hp9b&index=4 How to learn data analyst skills for free: https://youtu.be/x6tnVOn4st4 Machine learning tutorial playlist: https://www.youtube.com/watch?v=gmvvaobm7eQ&list=PLeo1K3hjS3uvCeTYTeyfe0-rN5r8zn9rw Entire playlist for this project: https://www.youtube.com/playlist?list=PLeo1K3hjS3uva8pk1FI3iK9kCOKQdz1I9 Special thanks to my friend, Hemanand Vadivel (https://www.linkedin.com/in/hemanand-vadivel-0b34aab5/) who is an experienced data analyst manager working for a company in UK. He has a major contribution in this project. Basics of DAX & Data Modelling are the two fundamental technical skills required to author Power BI reports – There are the free courses I recommend from SQLBI.com DAX: https://www.sqlbi.com/p/introducing-dax-video-course/ Data Modelling: https://www.sqlbi.com/p/introduction-to-data-modeling-for-power-bi-video-course/ 🌎 My Website For Video Courses: https://codebasics.io/?utm_source=description&utm_medium=yt&utm_campaign=description&utm_id=description Need help building software or data analytics and AI solutions? My company https://www.atliq.com/ can help. Click on the Contact button on that website. #️⃣ Social Media #️⃣ 🔗 Discord: https://discord.gg/r42Kbuk 📸 Dhaval's Personal Instagram: https://www.instagram.com/dhavalsays/ 📸 Codebasics Instagram: https://www.instagram.com/codebasicshub/ 🔊 Facebook: https://www.facebook.com/codebasicshub 📱 Twitter: https://twitter.com/codebasicshub 📝 Linkedin (Personal): https://www.linkedin.com/in/dhavalsays/ 📝 Linkedin (Codebasics): https://www.linkedin.com/company/codebasics/ 🔗 Patreon: https://www.patreon.com/codebasics?fan_landing=true

detail
{'title': 'Power BI Project For Beginners | Sales Insights Data Analysis Project - 3 - Data Analysis Using SQL', 'heatmap': [{'end': 237.012, 'start': 171.799, 'weight': 0.958}, {'end': 286.244, 'start': 244.057, 'weight': 0.904}], 'summary': 'Series covers sql data analysis for beginners, including mysql setup, sql server setup, data import, table creation, and insights generation through simple sql queries, addressing data cleaning challenges, and performing inner joins to calculate revenue and analyze specific data.', 'chapters': [{'end': 141.143, 'segs': [{'end': 111.79, 'src': 'embed', 'start': 0.189, 'weight': 0, 'content': [{'end': 5.237, 'text': 'In the last video, we looked at Ames Grid and data discovery aspect of it.', 'start': 0.189, 'duration': 5.048}, {'end': 10.465, 'text': 'In this video, we are going to perform a simple data analysis using SQL.', 'start': 5.397, 'duration': 5.068}, {'end': 15.953, 'text': "Now, if you're targeting data analyst role, having knowledge of SQL is essential.", 'start': 10.725, 'duration': 5.228}, {'end': 26.64, 'text': "So we'll run simple SQL queries on MySQL database, and we'll see how we can get some of the insights very easily using those SQL queries.", 'start': 16.454, 'duration': 10.186}, {'end': 37.226, 'text': "So the Falcons team, which is a software engineering team, gives access of this MySQL database to Data Master's team,", 'start': 27.1, 'duration': 10.126}, {'end': 38.647, 'text': 'which is a team of data analysts.', 'start': 37.226, 'duration': 1.421}, {'end': 44.451, 'text': 'And once they get this access, they will run all these queries and generate the sales insights.', 'start': 39.288, 'duration': 5.163}, {'end': 56.123, 'text': 'In future videos, I will show you how having a Power BI dashboard can be much more convenient and powerful compared to these simple MySQL queries.', 'start': 45.251, 'duration': 10.872}, {'end': 58.986, 'text': "You don't need any prior SQL background.", 'start': 56.864, 'duration': 2.122}, {'end': 62.89, 'text': "I'm going to provide all the necessary data and setup instructions.", 'start': 59.026, 'duration': 3.864}, {'end': 63.811, 'text': "So let's get started.", 'start': 62.991, 'duration': 0.82}, {'end': 69.236, 'text': "All right, the first thing is let's install MySQL on your local computer.", 'start': 64.915, 'duration': 4.321}, {'end': 74.737, 'text': "I'm going to provide a link of this great video which goes through the installation instructions.", 'start': 69.516, 'duration': 5.221}, {'end': 76.078, 'text': 'So just follow the video.', 'start': 74.797, 'duration': 1.281}, {'end': 80.519, 'text': 'It is linked in the video description below and install MySQL.', 'start': 76.298, 'duration': 4.221}, {'end': 86.64, 'text': "So when you install MySQL, you're installing MySQL server as well as MySQL Workbench.", 'start': 80.999, 'duration': 5.641}, {'end': 93.442, 'text': 'So MySQL Workbench will allow you to see the tables and run the SQL queries.', 'start': 87.28, 'duration': 6.162}, {'end': 100.447, 'text': 'After you have installed it, click on MySQL Workbench and launch it.', 'start': 94.446, 'duration': 6.001}, {'end': 103.188, 'text': 'So when you launch it, it looks something like this.', 'start': 100.767, 'duration': 2.421}, {'end': 111.79, 'text': 'Now you can create a new connection and I will call it Dev Sales Insights.', 'start': 104.168, 'duration': 7.622}], 'summary': 'Learn sql for data analysis; use mysql, access provided by falcons team; power bi dashboard is more convenient; no prior sql background needed; install mysql and workbench, create new connection', 'duration': 111.601, 'max_score': 0.189, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk189.jpg'}], 'start': 0.189, 'title': 'Sql data analysis', 'summary': 'Introduces the significance of sql for data analysts, explains mysql setup on a local computer, and showcases the generation of sales insights through simple sql queries.', 'chapters': [{'end': 141.143, 'start': 0.189, 'title': 'Introduction to sql data analysis', 'summary': 'Introduces sql data analysis, emphasizing the importance of sql for data analysts, demonstrating the setup of mysql on a local computer, and highlighting the ease of generating sales insights through simple sql queries.', 'duration': 140.954, 'highlights': ["The Falcons team provides MySQL database access to the Data Master's team for generating sales insights, indicating the practical application of SQL queries for data analysis.", 'The video provides step-by-step instructions for installing MySQL on a local computer, offering a link for installation guidance and emphasizing the ease of setup, facilitating accessibility for beginners.', 'The demonstration includes creating a new connection in MySQL Workbench, showcasing the initial setup process for data analysis using SQL.', 'The chapter emphasizes the accessibility of SQL for data analysis by stating that no prior SQL background is required, promoting inclusivity and ease of adoption for beginners.', 'The chapter hints at the upcoming introduction of a Power BI dashboard, suggesting a more convenient and powerful alternative to simple MySQL queries for data analysis in future videos.']}], 'duration': 140.954, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk189.jpg', 'highlights': ["The Falcons team provides MySQL database access to the Data Master's team for generating sales insights, indicating the practical application of SQL queries for data analysis.", 'The video provides step-by-step instructions for installing MySQL on a local computer, offering a link for installation guidance and emphasizing the ease of setup, facilitating accessibility for beginners.', 'The demonstration includes creating a new connection in MySQL Workbench, showcasing the initial setup process for data analysis using SQL.', 'The chapter emphasizes the accessibility of SQL for data analysis by stating that no prior SQL background is required, promoting inclusivity and ease of adoption for beginners.', 'The chapter hints at the upcoming introduction of a Power BI dashboard, suggesting a more convenient and powerful alternative to simple MySQL queries for data analysis in future videos.']}, {'end': 411.918, 'segs': [{'end': 286.244, 'src': 'heatmap', 'start': 171.799, 'weight': 0, 'content': [{'end': 175.863, 'text': 'so follow uh, i have the link in the video description below.', 'start': 171.799, 'duration': 4.064}, {'end': 184.834, 'text': 'so use that link and download this file called DB underscore dump dot SQL.', 'start': 175.863, 'duration': 8.971}, {'end': 187.135, 'text': 'so I downloaded that file here.', 'start': 184.834, 'duration': 2.301}, {'end': 189.736, 'text': 'DB underscore dump dot SQL.', 'start': 187.135, 'duration': 2.601}, {'end': 193.137, 'text': "okay, many times people don't know how to clone things from github.", 'start': 189.736, 'duration': 3.401}, {'end': 201.301, 'text': 'you have to just go to root repository and click on the green clone button and that way you can download the file.', 'start': 193.137, 'duration': 8.164}, {'end': 211.553, 'text': "so, assuming you have downloaded this file now, what I'm going to do from workbench is click on tools, rather server,", 'start': 201.301, 'duration': 10.252}, {'end': 215.378, 'text': 'and say data import in the data import.', 'start': 211.553, 'duration': 3.825}, {'end': 220.864, 'text': 'click this option and here go to the location.', 'start': 215.378, 'duration': 5.486}, {'end': 237.012, 'text': 'so my location of the dump file is this so select that, And what this will do is this will create the entire database,', 'start': 220.864, 'duration': 16.148}, {'end': 239.454, 'text': 'along with the records in your system.', 'start': 237.012, 'duration': 2.442}, {'end': 243.917, 'text': 'OK, so this is a self contained SQL file.', 'start': 240.875, 'duration': 3.042}, {'end': 247.979, 'text': 'I created database and exported the entire database to SQL file for you.', 'start': 244.057, 'duration': 3.922}, {'end': 252.542, 'text': 'So now all you have to do is just go here and import it.', 'start': 248.52, 'duration': 4.022}, {'end': 258.065, 'text': 'Then you can click on this button start import.', 'start': 254.304, 'duration': 3.761}, {'end': 262.321, 'text': 'and it is importing.', 'start': 261.399, 'duration': 0.922}, {'end': 267.309, 'text': 'so here it says import is running, looks like it finished without an error.', 'start': 262.321, 'duration': 4.988}, {'end': 271.956, 'text': 'so now you can click on this refresh icon and you will see this sales database created.', 'start': 267.309, 'duration': 4.647}, {'end': 275.699, 'text': 'You will see a couple of tables here', 'start': 274.278, 'duration': 1.421}, {'end': 279.581, 'text': "Now let's look at some records from customers table.", 'start': 276.219, 'duration': 3.362}, {'end': 286.244, 'text': 'So you can right click and select this and you will see this records.', 'start': 279.621, 'duration': 6.623}], 'summary': 'Demonstrating how to import a sql file to create a database with tables and records.', 'duration': 65.38, 'max_score': 171.799, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk171799.jpg'}, {'end': 368.063, 'src': 'embed', 'start': 314.158, 'weight': 3, 'content': [{'end': 322.342, 'text': 'so here, when I what it is doing is, it is printing all the records from customer table.', 'start': 314.158, 'duration': 8.184}, {'end': 331.371, 'text': "Now, if you don't know much about SQL and relational database, I will suggest that you do this course on Khan Academy.", 'start': 323.263, 'duration': 8.108}, {'end': 337.978, 'text': 'It is for free and that SQL course will teach you the fundamentals of relational database.', 'start': 331.391, 'duration': 6.587}, {'end': 341.942, 'text': 'What are tables, columns, foreign key, primary key and so on.', 'start': 338.018, 'duration': 3.924}, {'end': 347.458, 'text': 'In this table, I have three columns, customer code, name and customer type.', 'start': 343.297, 'duration': 4.161}, {'end': 351.439, 'text': 'These are all the clients of ETLIC hardware.', 'start': 347.718, 'duration': 3.721}, {'end': 356.88, 'text': "OK, let's look at transactions table because that's the most important one.", 'start': 352.239, 'duration': 4.641}, {'end': 366.903, 'text': 'Transaction table contains all my transactions, so you can see columns such as product code, customer code, market code, order date, sales quantity,', 'start': 358.141, 'duration': 8.762}, {'end': 368.063, 'text': 'sales amount and currency.', 'start': 366.903, 'duration': 1.16}], 'summary': 'Intro to sql and relational database, covering tables, columns, keys, with example of customer and transactions tables.', 'duration': 53.905, 'max_score': 314.158, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk314158.jpg'}], 'start': 141.143, 'title': 'Sql server setup, importing database, and understanding sql', 'summary': 'Covers setting up a sql server, importing a database dump file, using mysql workbench, creating tables, and exporting data to excel. it also provides an overview of sql and relational databases, with recommendations for further learning.', 'chapters': [{'end': 258.065, 'start': 141.143, 'title': 'Setting up sql server and importing database', 'summary': 'Discusses the process of setting up a sql server and importing a database dump file, emphasizing the steps to follow and the location of the file on github, and explaining the process of importing the database using mysql workbench.', 'duration': 116.922, 'highlights': ['The chapter emphasizes the process of setting up a SQL server and importing the database dump file, providing a link to the file on GitHub and guiding users through the steps of downloading and importing the file, ensuring a smooth setup process.', "The speaker offers guidance on downloading the database dump file from their GitHub page, emphasizing the importance of obtaining the 'DB_dump.SQL' file and providing instructions on how to access and download the file from the root repository on GitHub.", "Detailed instructions are given on how to import the database using MySQL Workbench, including clicking on the 'Tools' menu, selecting 'Data Import,' and choosing the location of the dump file, ensuring a seamless import process."]}, {'end': 314.158, 'start': 261.399, 'title': 'Importing sales database and exporting data', 'summary': 'Demonstrates importing a sales database, creating tables, and exporting data to excel, emphasizing the simplicity of the interface and the ability to export the whole customer table as a csv file.', 'duration': 52.759, 'highlights': ['The chapter demonstrates importing a sales database and creating tables, emphasizing the simplicity of the interface and the ability to export the whole customer table as a CSV file.', 'Users can click on the refresh icon to view the sales database created, and can also access and view records from the customers table by right-clicking and selecting the appropriate option.', 'The interface is described as simple, and users are encouraged to play with it, while also being informed about the ability to export data to an Excel file and run different queries.']}, {'end': 411.918, 'start': 314.158, 'title': 'Understanding sql and relational databases', 'summary': 'Provides an overview of sql and relational databases, covering the tables and columns in the customer, transactions, products, and markets tables, and recommends a free sql course on khan academy for fundamental learning.', 'duration': 97.76, 'highlights': ['The chapter emphasizes the importance of learning SQL and relational databases, recommending a free course on Khan Academy to understand the fundamentals, including tables, columns, foreign keys, and primary keys.', 'The transactions table is highlighted as the most crucial, containing columns such as product code, customer code, market code, order date, sales quantity, sales amount, and currency.', 'The details of the products and markets tables are briefly explained, including the lack of fancy product names and the presence of market codes, city names, and zones such as South Central or North, with specific examples like New York and Paris mentioned.']}], 'duration': 270.775, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk141143.jpg', 'highlights': ['The chapter emphasizes the process of setting up a SQL server and importing the database dump file, ensuring a smooth setup process.', 'Detailed instructions are given on how to import the database using MySQL Workbench, ensuring a seamless import process.', 'The chapter demonstrates importing a sales database and creating tables, emphasizing the simplicity of the interface and the ability to export the whole customer table as a CSV file.', 'The importance of learning SQL and relational databases is emphasized, recommending a free course on Khan Academy to understand the fundamentals.', 'The transactions table is highlighted as the most crucial, containing columns such as product code, customer code, market code, order date, sales quantity, sales amount, and currency.']}, {'end': 732.678, 'segs': [{'end': 511.016, 'src': 'embed', 'start': 433.364, 'weight': 0, 'content': [{'end': 437.646, 'text': "so there will be so much garbage, and that's where the main challenge comes in.", 'start': 433.364, 'duration': 4.282}, {'end': 442.749, 'text': 'you have to Do data cleaning as a data analyst and deal with cases like this.', 'start': 437.646, 'duration': 5.103}, {'end': 450.113, 'text': 'Okay You might have noticed in transactions table I had this which is sales amount is negative.', 'start': 443.509, 'duration': 6.604}, {'end': 451.354, 'text': 'Now that cannot be negative.', 'start': 450.153, 'duration': 1.201}, {'end': 455.317, 'text': 'So I had some messy data here as well.', 'start': 452.175, 'duration': 3.142}, {'end': 458.694, 'text': 'Also, few transactions are in USD.', 'start': 456.593, 'duration': 2.101}, {'end': 465.979, 'text': "If you want to do, let's say, some analysis, you have to convert this USD into INR.", 'start': 458.854, 'duration': 7.125}, {'end': 470.782, 'text': 'Otherwise, if you are trying to find out the total sum of revenue, it becomes really difficult.', 'start': 466.359, 'duration': 4.423}, {'end': 473.123, 'text': 'You cannot add this 500 with this one.', 'start': 471.042, 'duration': 2.081}, {'end': 475.805, 'text': 'So you will be facing a lot of these challenges.', 'start': 473.563, 'duration': 2.242}, {'end': 480.587, 'text': "So let's do some primary analysis of our database.", 'start': 476.525, 'duration': 4.062}, {'end': 483.828, 'text': 'In transactions we see some records here.', 'start': 481.287, 'duration': 2.541}, {'end': 486.669, 'text': 'I want to see how many total records are there.', 'start': 484.508, 'duration': 2.161}, {'end': 489.91, 'text': 'For that you can use this query.', 'start': 487.409, 'duration': 2.501}, {'end': 493.592, 'text': 'Select count star from sales transaction.', 'start': 490.23, 'duration': 3.362}, {'end': 496.333, 'text': 'OK And when you click here.', 'start': 494.412, 'duration': 1.921}, {'end': 499.754, 'text': 'It will give you the total count.', 'start': 497.373, 'duration': 2.381}, {'end': 503.175, 'text': 'You can see there is 150, 000 records.', 'start': 500.234, 'duration': 2.941}, {'end': 505.215, 'text': 'So this is not some dummy database.', 'start': 503.195, 'duration': 2.02}, {'end': 507.816, 'text': "It's some serious stuff going on.", 'start': 505.295, 'duration': 2.521}, {'end': 511.016, 'text': '150, 000 sales transaction.', 'start': 508.376, 'duration': 2.64}], 'summary': 'Data analyst faces challenges like negative sales, messy data, and currency conversion. database contains 150,000 sales transactions.', 'duration': 77.652, 'max_score': 433.364, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk433364.jpg'}, {'end': 661.347, 'src': 'embed', 'start': 574.733, 'weight': 2, 'content': [{'end': 586.863, 'text': 'So you can say where market code basically give me all the records where market code is Mark 001.', 'start': 574.733, 'duration': 12.13}, {'end': 593.388, 'text': 'And when you execute this, You know, you get all these records.', 'start': 586.863, 'duration': 6.525}, {'end': 601.794, 'text': 'Again, if you want to do count, you can see how many transactions were performed in Chennai.', 'start': 594.569, 'duration': 7.225}, {'end': 605.176, 'text': 'So we are already doing now data analysis.', 'start': 602.534, 'duration': 2.642}, {'end': 608.778, 'text': 'We are generating insights from our data by using SQL.', 'start': 605.356, 'duration': 3.422}, {'end': 614.262, 'text': "That's why SQL is one of the tools that you need to know as a data analyst.", 'start': 609.339, 'duration': 4.923}, {'end': 622.944, 'text': 'If your business manager asks you how many transactions we did in Chennai in total, you can go to SQL Workbench,', 'start': 615.6, 'duration': 7.344}, {'end': 625.786, 'text': 'run this query and get the answer immediately.', 'start': 622.944, 'duration': 2.842}, {'end': 634.031, 'text': "If he wants to know all the transactions, you know, he'll be like, okay, give me the dump of all the transactions in Chennai.", 'start': 626.787, 'duration': 7.244}, {'end': 643.021, 'text': 'Then you can run this query, click on export here, and export the result to CSV and give it to your business manager.', 'start': 634.851, 'duration': 8.17}, {'end': 647.342, 'text': 'So you realize how SQL can help you with your data analysis.', 'start': 643.601, 'duration': 3.741}, {'end': 652.144, 'text': 'Now I saw this USD currency.', 'start': 648.683, 'duration': 3.461}, {'end': 655.345, 'text': 'I want to know how many transactions have USD currency.', 'start': 652.344, 'duration': 3.001}, {'end': 656.725, 'text': 'So it is simple.', 'start': 655.965, 'duration': 0.76}, {'end': 658.086, 'text': "Again, it's a where clause.", 'start': 656.885, 'duration': 1.201}, {'end': 661.347, 'text': 'You can say currency equal to USD.', 'start': 658.606, 'duration': 2.741}], 'summary': 'Using sql for data analysis, performing specific queries and exporting results for business insights.', 'duration': 86.614, 'max_score': 574.733, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk574733.jpg'}, {'end': 732.678, 'src': 'embed', 'start': 701.358, 'weight': 4, 'content': [{'end': 706.601, 'text': 'I get these records, but I want to know how many transactions were performed in 2020.', 'start': 701.358, 'duration': 5.243}, {'end': 708.903, 'text': "Let's say I'm interested in a particular year.", 'start': 706.601, 'duration': 2.302}, {'end': 713.506, 'text': 'One thing you can do is get the year out of this column.', 'start': 709.963, 'duration': 3.543}, {'end': 719.79, 'text': 'Or, if you notice, we have this date table.', 'start': 714.346, 'duration': 5.444}, {'end': 722.692, 'text': 'so this date table is very important actually.', 'start': 719.79, 'duration': 2.902}, {'end': 724.553, 'text': 'so here.', 'start': 722.692, 'duration': 1.861}, {'end': 732.678, 'text': 'so date table has a date and it will tell you what is the given year for that particular date.', 'start': 724.553, 'duration': 8.125}], 'summary': 'Focus on extracting transaction data from 2020 using the date table.', 'duration': 31.32, 'max_score': 701.358, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk701358.jpg'}], 'start': 412.558, 'title': 'Data analysis challenges and sql insights', 'summary': 'Covers challenges in data cleaning and analysis such as dealing with messy and irrelevant data, and demonstrates sql data analysis by showcasing record counts, filtering, and generating insights.', 'chapters': [{'end': 483.828, 'start': 412.558, 'title': 'Data cleaning and analysis challenges', 'summary': 'Discusses the challenges of data cleaning and analysis, including dealing with messy and irrelevant data, converting currency, and performing primary analysis on a database.', 'duration': 71.27, 'highlights': ['Dealing with messy and irrelevant data is a key challenge in data cleaning, as relational databases may contain a lot of garbage accumulated over the years.', 'Converting currency, such as converting USD to INR, is necessary for accurate analysis and aggregation of revenue data.', 'Identifying and addressing data anomalies, such as negative sales amounts and inconsistent currency, is crucial for maintaining data accuracy and integrity.']}, {'end': 732.678, 'start': 484.508, 'title': 'Sql data analysis insights', 'summary': 'Demonstrates how sql is used to perform data analysis by showcasing the total records, specific record counts, filtering records, and generating insights, including finding the total count of records, specific record counts, filtering records based on location and currency, and analyzing transactions in a specific year.', 'duration': 248.17, 'highlights': ['Using SQL to find the total count of 150,000 sales transactions, showcasing the significance of SQL in data analysis.', 'Demonstrating the specific record counts of 38 customers and 150,000 sales transactions, highlighting the scale of the dataset and the importance of accurate data analysis.', 'Filtering records to show transactions only from Chennai using SQL, emphasizing the practical application of SQL in data analysis.', 'Analyzing transactions with USD currency, showcasing the ability of SQL to filter and analyze specific data points.', 'Showcasing the importance of a date table in SQL data analysis and its role in analyzing transactions in a specific year.', 'Emphasizing the significance of SQL as a tool for generating insights and performing data analysis, showcasing its practical application for business managers and data analysts.']}], 'duration': 320.12, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk412558.jpg', 'highlights': ['Using SQL to find the total count of 150,000 sales transactions, showcasing the significance of SQL in data analysis.', 'Demonstrating the specific record counts of 38 customers and 150,000 sales transactions, highlighting the scale of the dataset and the importance of accurate data analysis.', 'Emphasizing the significance of SQL as a tool for generating insights and performing data analysis, showcasing its practical application for business managers and data analysts.', 'Filtering records to show transactions only from Chennai using SQL, emphasizing the practical application of SQL in data analysis.', 'Showcasing the importance of a date table in SQL data analysis and its role in analyzing transactions in a specific year.', 'Converting currency, such as converting USD to INR, is necessary for accurate analysis and aggregation of revenue data.', 'Identifying and addressing data anomalies, such as negative sales amounts and inconsistent currency, is crucial for maintaining data accuracy and integrity.', 'Dealing with messy and irrelevant data is a key challenge in data cleaning, as relational databases may contain a lot of garbage accumulated over the years.', 'Analyzing transactions with USD currency, showcasing the ability of SQL to filter and analyze specific data points.']}, {'end': 1226.631, 'segs': [{'end': 907.65, 'src': 'embed', 'start': 875.604, 'weight': 2, 'content': [{'end': 879.125, 'text': 'So these two tables are joined using the date columns.', 'start': 875.604, 'duration': 3.521}, {'end': 885.407, 'text': "So now when I'm looking at this transaction, you know, the good thing is I also know the year here.", 'start': 880.005, 'duration': 5.402}, {'end': 901.328, 'text': 'See, and what I can do now is I can print all the transaction in 2020 by saying sales dot date here equal to 2020.', 'start': 886.187, 'duration': 15.141}, {'end': 906.49, 'text': 'So when I do this now, it will show me only the transaction from year 2020.', 'start': 901.328, 'duration': 5.162}, {'end': 907.65, 'text': 'You see there is only 2020 here.', 'start': 906.49, 'duration': 1.16}], 'summary': 'Joining tables by date to filter transactions in 2020.', 'duration': 32.046, 'max_score': 875.604, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk875604.jpg'}, {'end': 988.228, 'src': 'embed', 'start': 959.924, 'weight': 0, 'content': [{'end': 962.105, 'text': "So you don't have to worry about that currency.", 'start': 959.924, 'duration': 2.181}, {'end': 966.788, 'text': 'But if there was a USD currency, then you have to change the query a little bit.', 'start': 962.505, 'duration': 4.283}, {'end': 973.132, 'text': 'But when you execute this, now I got this number that there was 152 million rupees revenue in 2020.', 'start': 967.368, 'duration': 5.764}, {'end': 983.905, 'text': 'Similarly, if you do 2019, it will tell me 2019 had this much revenue.', 'start': 973.132, 'duration': 10.773}, {'end': 988.228, 'text': 'so you see, the revenues are, i think, declining, because previous year it was 336 million.', 'start': 983.905, 'duration': 4.323}], 'summary': "Revenue in 2020 was 152 million rupees, showing a decline from 2019's 336 million.", 'duration': 28.304, 'max_score': 959.924, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk959924.jpg'}, {'end': 1134.314, 'src': 'embed', 'start': 1103.12, 'weight': 1, 'content': [{'end': 1110.285, 'text': 'And this is now showing me the revenue in Chennai, which is 123123 2.4 million.', 'start': 1103.12, 'duration': 7.165}, {'end': 1115.589, 'text': 'You can also show the distinct products.', 'start': 1111.266, 'duration': 4.323}, {'end': 1123.074, 'text': 'For example, if you want to know the distinct products that you sold in Chennai, then you can print this query.', 'start': 1115.669, 'duration': 7.405}, {'end': 1125.696, 'text': 'Select distinct product from that.', 'start': 1123.254, 'duration': 2.442}, {'end': 1128.824, 'text': 'And you know this will show you the.', 'start': 1127.321, 'duration': 1.503}, {'end': 1134.314, 'text': 'Distinct products list of products that you sold in Chennai so far.', 'start': 1130.487, 'duration': 3.827}], 'summary': 'Chennai revenue is 123123 2.4 million; query for distinct products available.', 'duration': 31.194, 'max_score': 1103.12, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk1103120.jpg'}], 'start': 732.678, 'title': 'Sql data analysis and joins', 'summary': 'Covers performing inner join in sql, filtering data by year, calculating total revenue, and analyzing data in chennai, leading to insights and preparation for data cleaning in the next video.', 'chapters': [{'end': 1226.631, 'start': 732.678, 'title': 'Sql data analysis and joins', 'summary': 'Discusses performing inner join in sql to combine tables, filtering data by year, calculating total revenue, and analyzing data in chennai, leading to insights and preparing for data cleaning in the next video.', 'duration': 493.953, 'highlights': ['Performing inner join to combine tables using date columns and filtering data by year to retrieve specific transactions.', 'Calculating total revenue for 2020 and 2019, indicating a decline in revenue from 336 million to 142 million in 2020.', 'Analyzing revenue in Chennai, revealing a revenue of 123.24 million and demonstrating how to retrieve distinct products sold in Chennai.']}], 'duration': 493.953, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/JOrhcV3_NAk/pics/JOrhcV3_NAk732678.jpg', 'highlights': ['Calculating total revenue for 2020 and 2019, indicating a decline from 336M to 142M in 2020.', 'Analyzing revenue in Chennai, revealing a revenue of 123.24M.', 'Performing inner join to combine tables using date columns and filtering data by year.']}], 'highlights': ["The Falcons team provides MySQL database access to the Data Master's team for generating sales insights.", 'Using SQL to find the total count of 150,000 sales transactions, showcasing the significance of SQL in data analysis.', 'Calculating total revenue for 2020 and 2019, indicating a decline from 336M to 142M in 2020.', 'The chapter emphasizes the process of setting up a SQL server and importing the database dump file, ensuring a smooth setup process.', 'Demonstrating the specific record counts of 38 customers and 150,000 sales transactions, highlighting the scale of the dataset and the importance of accurate data analysis.', 'The video provides step-by-step instructions for installing MySQL on a local computer, offering a link for installation guidance and emphasizing the ease of setup, facilitating accessibility for beginners.', 'The demonstration includes creating a new connection in MySQL Workbench, showcasing the initial setup process for data analysis using SQL.', 'The chapter demonstrates importing a sales database and creating tables, emphasizing the simplicity of the interface and the ability to export the whole customer table as a CSV file.', 'The importance of learning SQL and relational databases is emphasized, recommending a free course on Khan Academy to understand the fundamentals.', 'The transactions table is highlighted as the most crucial, containing columns such as product code, customer code, market code, order date, sales quantity, sales amount, and currency.']}