Life of a Data Engineer.....
Business user : Can we add a filter on this dashboard. This will help us track a critical metric.
me : sure this should be a quick one.
Next day :
I quickly opened the dashboard to find the column in the existing dashboard's data sources. -- column not found
Spent a couple of hours to identify the data source and how to bring the column into the existence data pipeline which feeds the dashboard( table granularity , join condition etc..).
Then comes the pipeline changes , data model changes , dashboard changes , validation/testing.
Finally deploying to production and a simple email to the user that the filter has been added.
A small change in the front end but a lot of work in the backend to bring that column to life.
Never underestimate data engineers and data pipelines ๐ช
Business user : Can we add a filter on this dashboard. This will help us track a critical metric.
me : sure this should be a quick one.
Next day :
I quickly opened the dashboard to find the column in the existing dashboard's data sources. -- column not found
Spent a couple of hours to identify the data source and how to bring the column into the existence data pipeline which feeds the dashboard( table granularity , join condition etc..).
Then comes the pipeline changes , data model changes , dashboard changes , validation/testing.
Finally deploying to production and a simple email to the user that the filter has been added.
A small change in the front end but a lot of work in the backend to bring that column to life.
Never underestimate data engineers and data pipelines ๐ช
โค1
These are the Top 5 Most Common SQL Questions for Data Engineering:
1. Total records after joining two tables on all types of joins
2. Rolling Sum and Nth salary based questions
3. Lag/Lead based questions e.g., consecutive months of increasing sales or YoY growth
4. Query to find employees who earn more than their managers
5. Removing duplicates from a table
Key Takeaways:
- Master window functions and joins
- Practice medium to hard SQL questions regularly
Getting good at SQL will pay off in the long run! ๐ช
Join our WhatsApp channel of Data Engineers: https://whatsapp.com/channel/0029Vaovs0ZKbYMKXvKRYi3C
1. Total records after joining two tables on all types of joins
2. Rolling Sum and Nth salary based questions
3. Lag/Lead based questions e.g., consecutive months of increasing sales or YoY growth
4. Query to find employees who earn more than their managers
5. Removing duplicates from a table
Key Takeaways:
- Master window functions and joins
- Practice medium to hard SQL questions regularly
Getting good at SQL will pay off in the long run! ๐ช
Join our WhatsApp channel of Data Engineers: https://whatsapp.com/channel/0029Vaovs0ZKbYMKXvKRYi3C
FREE RESOURCES TO LEARN DATA ENGINEERING
๐๐
Big Data and Hadoop Essentials free course
https://bit.ly/3rLxbul
Data Engineer: Prepare Financial Data for ML and Backtesting FREE UDEMY COURSE
[4.6 stars out of 5]
https://bit.ly/3fGRjLu
Understanding Data Engineering from Datacamp
https://clnk.in/soLY
Data Engineering Free Books
https://ia600201.us.archive.org/4/items/springer_10.1007-978-1-4419-0176-7/10.1007-978-1-4419-0176-7.pdf
https://www.darwinpricing.com/training/Data_Engineering_Cookbook.pdf
Big Data of Data Engineering Free book
https://databricks.com/wp-content/uploads/2021/10/Big-Book-of-Data-Engineering-Final.pdf
https://aimlcommunity.com/wp-content/uploads/2019/09/Data-Engineering.pdf
The Data Engineerโs Guide to Apache Spark
https://t.me/datasciencefun/783?single
Data Engineering with Python
https://t.me/pythondevelopersindia/343
Data Engineering Projects -
1.End-To-End From Web Scraping to Tableau https://lnkd.in/ePMw63ge
2. Building Data Model and Writing ETL Job https://lnkd.in/eq-e3_3J
3. Data Modeling and Analysis using Semantic Web Technologies https://lnkd.in/e4A86Ypq
4. ETL Project in Azure Data Factory - https://lnkd.in/eP8huQW3
5. ETL Pipeline on AWS Cloud - https://lnkd.in/ebgNtNRR
6. Covid Data Analysis Project - https://lnkd.in/eWZ3JfKD
7. YouTube Data Analysis
(End-To-End Data Engineering Project) - https://lnkd.in/eYJTEKwF
8. Twitter Data Pipeline using Airflow - https://lnkd.in/eNxHHZbY
9. Sentiment analysis Twitter:
Kafka and Spark Structured Streaming - https://lnkd.in/esVAaqtU
ENJOY LEARNING ๐๐
๐๐
Big Data and Hadoop Essentials free course
https://bit.ly/3rLxbul
Data Engineer: Prepare Financial Data for ML and Backtesting FREE UDEMY COURSE
[4.6 stars out of 5]
https://bit.ly/3fGRjLu
Understanding Data Engineering from Datacamp
https://clnk.in/soLY
Data Engineering Free Books
https://ia600201.us.archive.org/4/items/springer_10.1007-978-1-4419-0176-7/10.1007-978-1-4419-0176-7.pdf
https://www.darwinpricing.com/training/Data_Engineering_Cookbook.pdf
Big Data of Data Engineering Free book
https://databricks.com/wp-content/uploads/2021/10/Big-Book-of-Data-Engineering-Final.pdf
https://aimlcommunity.com/wp-content/uploads/2019/09/Data-Engineering.pdf
The Data Engineerโs Guide to Apache Spark
https://t.me/datasciencefun/783?single
Data Engineering with Python
https://t.me/pythondevelopersindia/343
Data Engineering Projects -
1.End-To-End From Web Scraping to Tableau https://lnkd.in/ePMw63ge
2. Building Data Model and Writing ETL Job https://lnkd.in/eq-e3_3J
3. Data Modeling and Analysis using Semantic Web Technologies https://lnkd.in/e4A86Ypq
4. ETL Project in Azure Data Factory - https://lnkd.in/eP8huQW3
5. ETL Pipeline on AWS Cloud - https://lnkd.in/ebgNtNRR
6. Covid Data Analysis Project - https://lnkd.in/eWZ3JfKD
7. YouTube Data Analysis
(End-To-End Data Engineering Project) - https://lnkd.in/eYJTEKwF
8. Twitter Data Pipeline using Airflow - https://lnkd.in/eNxHHZbY
9. Sentiment analysis Twitter:
Kafka and Spark Structured Streaming - https://lnkd.in/esVAaqtU
ENJOY LEARNING ๐๐
โค2๐2
๐๐ผ๐ผ๐ด๐น๐ฒ ๐๐ฅ๐๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐๐
Data analytics is a must-have skill in todayโs digital era, and Google offers exceptional free courses to help you excel
- Google Analytics Certification
- Google Analytics for Power Users
- Advanced Google Analytics
๐๐ข๐ง๐ค ๐:-
https://pdlink.in/423LMom
Enroll For FREE & Get Certified๐
Data analytics is a must-have skill in todayโs digital era, and Google offers exceptional free courses to help you excel
- Google Analytics Certification
- Google Analytics for Power Users
- Advanced Google Analytics
๐๐ข๐ง๐ค ๐:-
https://pdlink.in/423LMom
Enroll For FREE & Get Certified๐
Languages used by data engineers:
๐SQL
๐Python
๐Scala
๐Pyspark
๐Spark SQL
๐SQL
๐Python
๐Scala
๐Pyspark
๐Spark SQL
Here are some incredible platforms where you can download datasets for your project:
Our World in Data https://ourworldindata.org/
World Health Organization (https://www.who.int/data/gho
Statcounter (https://gs.statcounter.com/
Food and Agriculture Organization of the UN (FAO) (https://www.fao.org/home/en
World Bank (https://data.worldbank.org/)
Our World in Data https://ourworldindata.org/
World Health Organization (https://www.who.int/data/gho
Statcounter (https://gs.statcounter.com/
Food and Agriculture Organization of the UN (FAO) (https://www.fao.org/home/en
World Bank (https://data.worldbank.org/)
๐๐ฒ๐ ๐ฌ๐ผ๐๐ฟ ๐๐ฟ๐ฒ๐ฎ๐บ ๐๐ผ๐ฏ ๐๐ป ๐๐บ๐ฎ๐๐ผ๐ป, ๐๐ผ๐ผ๐ด๐น๐ฒ, ๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐, ๐ก๐ฉ๐๐๐๐, ๐ฎ๐ป๐ฑ ๐ ๐ฒ๐๐ฎ (๐๐ฎ๐ฐ๐ฒ๐ฏ๐ผ๐ผ๐ธ) ๐๐ถ๐๐ต ๐๐ต๐ฒ๐๐ฒ ๐ฐ๐ผ๐บ๐ฝ๐ฟ๐ฒ๐ต๐ฒ๐ป๐๐ถ๐๐ฒ ๐ฟ๐ฒ๐๐ผ๐๐ฟ๐ฐ๐ฒ๐๐
1๏ธโฃ Amazon Interviewing Guide
2๏ธโฃ Google Interview Tips
3๏ธโฃ Microsoft Hiring Tips
4๏ธโฃ NVIDIA Hiring Process
5๏ธโฃ Meta Onsite SWE Prep Guide
๐๐ข๐ง๐ค๐:-
https://pdlink.in/40OSJJ6
Crack Interview & Get Your Dream Job In Top MNCs
1๏ธโฃ Amazon Interviewing Guide
2๏ธโฃ Google Interview Tips
3๏ธโฃ Microsoft Hiring Tips
4๏ธโฃ NVIDIA Hiring Process
5๏ธโฃ Meta Onsite SWE Prep Guide
๐๐ข๐ง๐ค๐:-
https://pdlink.in/40OSJJ6
Crack Interview & Get Your Dream Job In Top MNCs
๐
๐๐๐ ๐๐๐ซ๐ญ๐ข๐๐ข๐๐๐ญ๐ข๐จ๐ง ๐๐จ๐ฎ๐ซ๐ฌ๐๐ฌ ๐
1) Generative AI
2) Big data artificial intelligence
3 ) Microsoft Al for beginners
4) Prompt Engineering for Chat GPT
๐๐ข๐ง๐ค๐ :-
https://pdlink.in/40Fbg9d
Enroll For FREE & Get Certified๐
1) Generative AI
2) Big data artificial intelligence
3 ) Microsoft Al for beginners
4) Prompt Engineering for Chat GPT
๐๐ข๐ง๐ค๐ :-
https://pdlink.in/40Fbg9d
Enroll For FREE & Get Certified๐
โค1
Struggling with Machine Learning algorithms? ๐ค
Then you better stay with me! ๐ค
We are going back to the basics to simplify ML algorithms.
... today's turn is Logistic Regression! ๐๐ป
1๏ธโฃ ๐๐ข๐๐๐ฆ๐ง๐๐ ๐ฅ๐๐๐ฅ๐๐ฆ๐ฆ๐๐ข๐ก
It is a binary classification model used to classify our input data into two main categories.
It can be extended to multiple classifications... but today we'll focus on a binary one.
Also known as Simple Logistic Regression.
2๏ธโฃ ๐๐ข๐ช ๐ง๐ข ๐๐ข๐ ๐ฃ๐จ๐ง๐ ๐๐ง?
The Sigmoid Function is our mathematical wand, turning numbers into neat probabilities between 0 and 1.
It's what makes Logistic Regression tick, giving us a clear 'probabilistic' picture.
3๏ธโฃ ๐๐ข๐ช ๐ง๐ข ๐๐๐๐๐ก๐ ๐ง๐๐ ๐๐๐ฆ๐ง ๐๐๐ง?
For every parametric ML algorithm, we need a LOSS FUNCTION.
It is our map to find our optimal solution or global minimum.
(hoping there is one! ๐)
โ ๐๐ข๐ก๐จ๐ฆ - FROM LINEAR TO LOGISTIC REGRESSION
To obtain the sigmoid function, we can derive it from the Linear Regression equation.
Then you better stay with me! ๐ค
We are going back to the basics to simplify ML algorithms.
... today's turn is Logistic Regression! ๐๐ป
1๏ธโฃ ๐๐ข๐๐๐ฆ๐ง๐๐ ๐ฅ๐๐๐ฅ๐๐ฆ๐ฆ๐๐ข๐ก
It is a binary classification model used to classify our input data into two main categories.
It can be extended to multiple classifications... but today we'll focus on a binary one.
Also known as Simple Logistic Regression.
2๏ธโฃ ๐๐ข๐ช ๐ง๐ข ๐๐ข๐ ๐ฃ๐จ๐ง๐ ๐๐ง?
The Sigmoid Function is our mathematical wand, turning numbers into neat probabilities between 0 and 1.
It's what makes Logistic Regression tick, giving us a clear 'probabilistic' picture.
3๏ธโฃ ๐๐ข๐ช ๐ง๐ข ๐๐๐๐๐ก๐ ๐ง๐๐ ๐๐๐ฆ๐ง ๐๐๐ง?
For every parametric ML algorithm, we need a LOSS FUNCTION.
It is our map to find our optimal solution or global minimum.
(hoping there is one! ๐)
โ ๐๐ข๐ก๐จ๐ฆ - FROM LINEAR TO LOGISTIC REGRESSION
To obtain the sigmoid function, we can derive it from the Linear Regression equation.
๐3โค1
Understand the power of Data Lakehouse Architecture for ๐๐ฅ๐๐ here...
๐จ๐ข๐น๐ฑ ๐๐ฎ๐
โข Complicated ETL processes for data integration.
โข Silos of data storage, separating structured and unstructured data.
โข High data storage and management costs in traditional warehouses.
โข Limited scalability and delayed access to real-time insights.
โ ๐ก๐ฒ๐ ๐ช๐ฎ๐
โข Streamlined data ingestion and processing with integrated SQL capabilities.
โข Unified storage layer accommodating both structured and unstructured data.
โข Cost-effective storage by combining benefits of data lakes and warehouses.
โข Real-time analytics and high-performance queries with SQL integration.
The shift?
Unified Analytics and Real-Time Insights > Siloed and Delayed Data Processing
Leveraging SQL to manage data in a data lakehouse architecture transforms how businesses handle data.
Data Engineering Interview Preparation Resources: https://whatsapp.com/channel/0029Vaovs0ZKbYMKXvKRYi3C
All the best ๐๐
๐จ๐ข๐น๐ฑ ๐๐ฎ๐
โข Complicated ETL processes for data integration.
โข Silos of data storage, separating structured and unstructured data.
โข High data storage and management costs in traditional warehouses.
โข Limited scalability and delayed access to real-time insights.
โ ๐ก๐ฒ๐ ๐ช๐ฎ๐
โข Streamlined data ingestion and processing with integrated SQL capabilities.
โข Unified storage layer accommodating both structured and unstructured data.
โข Cost-effective storage by combining benefits of data lakes and warehouses.
โข Real-time analytics and high-performance queries with SQL integration.
The shift?
Unified Analytics and Real-Time Insights > Siloed and Delayed Data Processing
Leveraging SQL to manage data in a data lakehouse architecture transforms how businesses handle data.
Data Engineering Interview Preparation Resources: https://whatsapp.com/channel/0029Vaovs0ZKbYMKXvKRYi3C
All the best ๐๐
๐1
๐ง๐ผ๐ฝ ๐๐ฟ๐ฒ๐ฒ ๐ฃ๐๐๐ต๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐ณ๐ผ๐ฟ ๐๐ฒ๐ด๐ถ๐ป๐ป๐ฒ๐ฟ๐๐
Python is one of the most versatile and in-demand programming languages today.
Whether youโre a beginner or looking to refresh your coding skills, these beginner-friendly courses will guide you step by step.
๐๐ฒ๐ฎ๐ฟ๐ป ๐๐ผ๐ฟ ๐๐ฅ๐๐๐:-
https://pdlink.in/4gG4k2q
All The Best ๐
Python is one of the most versatile and in-demand programming languages today.
Whether youโre a beginner or looking to refresh your coding skills, these beginner-friendly courses will guide you step by step.
๐๐ฒ๐ฎ๐ฟ๐ป ๐๐ผ๐ฟ ๐๐ฅ๐๐๐:-
https://pdlink.in/4gG4k2q
All The Best ๐
๐ฆ๐ค๐ ๐๐ฅ๐๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐
Best Free SQL Courses to Get Started
1) Introduction to Databases and SQL
2) Advanced Database and SQL
3) Learn SQL
4) SQL Tutorial
๐๐ข๐ง๐ค ๐:-
https://pdlink.in/3EyjUPt
Enroll For FREE & Get Certified ๐
Best Free SQL Courses to Get Started
1) Introduction to Databases and SQL
2) Advanced Database and SQL
3) Learn SQL
4) SQL Tutorial
๐๐ข๐ง๐ค ๐:-
https://pdlink.in/3EyjUPt
Enroll For FREE & Get Certified ๐
๐1
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all companies placement material๐ฅ๐ฅ๐ฅ
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https://t.me/sqlspecialist