- Видео 14
- Просмотров 6 811
Ramesh Retnasamy - CloudBoxAcademy
Добавлен 20 фев 2021
I am a data engineer based in the UK. I invite you to explore my videos on big data and cloud technologies!
I have over 20 years of experience delivering some of the large data projects for industries ranging from technology, gaming, finance, retail and government.
I have a passion for teaching and I take great pride in the success of my students. You can find my courses here www.cloudboxacademy.com
I have over 20 years of experience delivering some of the large data projects for industries ranging from technology, gaming, finance, retail and government.
I have a passion for teaching and I take great pride in the success of my students. You can find my courses here www.cloudboxacademy.com
3. Understanding Cartesian Products and Cross Joins in SQL
Welcome to this video!In this video, we dive into the concept of Cartesian products in SQL and how they can arise unintentionally due to missing conditions in joins. We’ll also explore how to intentionally create Cartesian products using CROSS JOIN for specific use cases.
In this video, you'll learn:
🔸 What Cartesian products are and how they occur in SQL
🔸 How to identify and avoid Cartesian products when writing joins
🔸 The potential performance and data accuracy issues caused by unintentional Cartesian products
🔸 The use of CROSS JOIN for intentionally creating Cartesian products
🔸 Practical examples to demonstrate Cartesian products and cross joins
By the end of this video, you’ll understand...
In this video, you'll learn:
🔸 What Cartesian products are and how they occur in SQL
🔸 How to identify and avoid Cartesian products when writing joins
🔸 The potential performance and data accuracy issues caused by unintentional Cartesian products
🔸 The use of CROSS JOIN for intentionally creating Cartesian products
🔸 Practical examples to demonstrate Cartesian products and cross joins
By the end of this video, you’ll understand...
Просмотров: 29
Видео
2. SQL Inner Joins Explained! : How Data is Matched Between Tables?
Просмотров 29День назад
Welcome to this video! In this video, we provide an intuitive explanation of SQL inner joins and how records from two tables are matched based on a join condition. Understanding the mechanics behind inner joins will help you write accurate queries and predict the structure of your result sets. In this video, you'll learn: 🔸 How inner joins work step by step when joining two tables 🔸 The order o...
1. Introduction to SQL Inner Join
Просмотров 3814 дней назад
Welcome to this video! In this video, we explore inner joins in SQL, which allow you to combine data from two or more tables based on a related column. Inner joins are the default type of join in SQL and are essential for effective data analysis across multiple tables. In this video, you'll learn: 🔸 What inner joins are and when to use them 🔸 How to use the JOIN keyword in SQL (ANSI standard) 🔸...
9. Introduction to SQL DELETE Statements: Deleting Data using SQL
Просмотров 3528 дней назад
Welcome to this video! In this video, we cover how to remove records from a SQL table using the DELETE statement. Whether you’re cleaning up outdated data or removing incorrect records, understanding how to safely delete data is crucial. In this video, you'll learn: 🔸 The syntax of the SQL DELETE statement 🔸 How to delete specific records using the WHERE clause 🔸 The impact of omitting the WHER...
8. Introduction to SQL UPDATE Statements: Updating Data using SQL
Просмотров 3428 дней назад
Welcome to this video! In this video, we explore how to update data in a SQL table using the UPDATE statement. When you need to correct existing data or add new information to existing records, understanding how to effectively use the UPDATE statement is essential. In this video, you'll learn: 🔸 The syntax of the SQL UPDATE statement 🔸 How to update single or multiple columns in a table 🔸 The i...
7. Introduction to SQL WHERE Clause: Filter Specific Records
Просмотров 46Месяц назад
Welcome to this video! In this video, we dive into using the WHERE clause in SQL to filter data from a table. When working with large datasets, being able to select specific records or conditions is essential for efficient querying and data analysis. In this video, you'll learn: 🔸 How to use the WHERE clause to filter results in a SQL SELECT statement 🔸 How to retrieve specific records based on...
6. Introduction to SQL SELECT Statements: Querying Data in SQL
Просмотров 48Месяц назад
Welcome to this video! In this video, we explore how to use the SELECT statement in SQL to query/ read data from a database table. The SELECT statement is fundamental to working with SQL and is one of the most commonly used statement. In this video, you'll learn: 🔸 How to write a basic SELECT statement with the FROM clause 🔸 How to specify column names to retrieve specific data 🔸 Using the wild...
5. How to Insert Multiple Records using a Single SQL INSERT Statement
Просмотров 33Месяц назад
Welcome to this video! In this video, we demonstrate how to insert multiple records into a SQL table using a single INSERT INTO statement. This approach is more efficient than writing multiple insert statements and helps you save time when working with large datasets. In this video, you'll learn: 🔸 How to use a single INSERT INTO statement to insert multiple records 🔸 The importance of separati...
4. Introduction to SQL INSERT Statement
Просмотров 20Месяц назад
Welcome to this video. In this video, we explore how to insert data into a database table using SQL’s INSERT INTO statement. If you’re new to SQL, this tutorial will guide you through the step-by-step process of adding records to a table and understanding best practices for writing SQL insert statements. What you’ll learn in this video: 🔸 The syntax of the SQL INSERT INTO statement 🔸 How to ins...
3. SQL Best Practices: Writing Readable and Maintainable SQL Code
Просмотров 54Месяц назад
In this video, we explore best practices for writing clean, readable, and maintainable SQL code. Whether you're just starting out or looking to refine your skills, following these SQL coding standards from day one will help you write production-quality scripts that are easy to read and manage. In this video, you'll learn: 🔸 How to format SQL statements for readability 🔸 Best practices for using...
2. Creating a Database Table in SQL: Step-by-Step Guide
Просмотров 64Месяц назад
In this video, we take a deeper dive into SQL by learning how to create a database table using SQL's CREATE TABLE statement. If you’re familiar with spreadsheets, this tutorial will help you understand how similar concepts like rows, columns, and data types translate into SQL and relational databases. What you'll learn in this video: 🔸 The relationship between spreadsheets and database tables 🔸...
1. Introduction to SQL (Structured Query Language)
Просмотров 156Месяц назад
Welcome to this video where we dive into the basics of SQL (Structured Query Language). Whether you're a beginner looking to understand databases or someone wanting to get a quick overview of SQL, this video is for you! In this video, we cover: 🔸 What SQL is and how it's pronounced 🔸 What a database is and how data is stored 🔸 The difference between a domain-specific language like SQL and gener...
Comprehensive Introduction to Azure Databricks
Просмотров 3 тыс.3 года назад
Welcome to this video! In this video, we dive into Azure Databricks, an increasingly popular platform for big data and machine learning projects. You’ll get an overview of the Databricks service and its powerful capabilities, plus a hands-on demonstration to help you get started. In this video, you'll learn: 🔸 What Azure Databricks is and its core components 🔸 An introduction to Apache Spark an...
Comprehensive Introduction to Azure Data Factory
Просмотров 3,2 тыс.3 года назад
Welcome to the Video! In this video, we explore Azure Data Factory (ADF), Microsoft's flagship data integration solution. Azure Data Factory enables you to ingest, prepare, and transform data at scale. This video covers an overview of ADF and includes a hands-on demonstration where we create a data factory, set up a data lake, and build a data pipeline. In this video, you'll learn: 🔸 What Azure...
good sir , need more videos on Azure data bricks from an company level from beginner's to advanced . thanks for advance
Hi Ramesh, could you please provide a contact number or email? I would like to enroll in the online course if you are conducting one. Thanks, Senthil
Hi Senthil, thanks for your interest. The online course that I have is pre-recorded and available via Udemy. The details are in the description of the video. Hope this helps!
Thanks for your response. Okay. I am interested in online class please let me know if any of your friends do. Thanks
@RameshRetnasamy Hello, We are the YAGI Team and recently reviewed your Udemy course. Your content shows great potential for sales with the right strategies in place. Given Udemy’s competitive nature, standing out often requires high enrollments and positive reviews. We’d love to discuss how we can help enhance your course's visibility and success. Looking forward to your thoughts! Best regards, YAGI Team"
Thank you Ramesh for awesome, I came to know about you through Udemy, where I had registered for all your courese, Could you also let us know if you are trying to upgrade them and provide more content. looking forward to hear from you, Thank you very much Ramesh.
Thanks for the clear explanation of videos for Synapse. I got it from Udemy online learning.
Best Course , worth the money
Can u upload or continue plz upload ful data engineer course plz
Sir Nice explanation... When we will expect the other video
Please upload more videos on data engineering
Very clear explanation point to point really liked it keeps you engaged
Could you please post the videos for Azure synapse analytics. I am interested for that course. Please let me know. Thank you🤗
Anna super and very useful
Ramesh your videos really helpful working in big data project 👍🤝 My request could you please create similar for Azure synapse analytics. Thank you 🙂
Thanks Boss 🙏
Hi Ramesh, which one should one choose with? databricks or aws tools ? How much of AWS is needed for spark/databricks?
Waiting for more videos please
Sure, I will add more videos, If you are interested in my courses, please checkout www.cloudboxacademy.com
Only video all over internet that clears all the confusion with what is databricks......was so confused.... How all those services ( at 9:08 )are connected..... Thanks a lot ❤️
Thanks Vinayak, glad you found it useful!
Hi Ramesh,It was such a great video to start ADF. Is it possible to provide complete training on ADF.
Thanks Srikanth. I don't have an in-person training programme, but I have a 10 hours long ADF course on Udemy if you are interested. www.udemy.com/course/learn-azure-data-factory-from-scratch/?referralCode=E1F8CD7C853094E7652C Hope you find this useful
Hi ramesh, I looking to take training from you on data factory. Thanks, Mani.
Thanks Manikumar. I don't have an in-person training programme, but I have a 10 hours long ADF course on Udemy if you are interested. www.udemy.com/course/learn-azure-data-factory-from-scratch/?referralCode=E1F8CD7C853094E7652C
This course is exceIIent !
Good job ramesh...thank u
Thank you for the video ! Subscribed to channel. Would love to see more videos on Azure Databricks
Thank you
Great.. looking forward to learn more on ADF with this channel.
Thank you Shivam. Will bring more videos
Great.. Thanks for the tut.. Expecting more videos on ADF.. 😊
Sure Shashank, thank you
Very well explained....very informative 👍
Thank you Preeti :)