Merge pull request #237 from isangwanrahul/main

Updates readme

Author: ry-v1

bootcamp/introduction.md

@@ -22,6 +22,10 @@ This will be six weeks of curricula
 - Data Quality (analytics)
 - Data Quality (infrastructure)
 - Data impact and visualization (analytics)
+  - Day 1 Lecture is [here](https://www.dataexpert.io/lesson/data-visualization-and-impact-day-1-lecture-yt)
+  - Day 1 Lab is [here](https://www.dataexpert.io/lesson/data-visualization-and-impact-day-1-lab-yt)
+  - Day 2 Lecture is [here](https://www.dataexpert.io/lesson/data-visualization-and-impact-day-2-lecture-yt)
+  - Day 2 Lab is [here](https://www.dataexpert.io/lesson/data-visualization-and-impact-day-2-lab-yt)
 - Data pipeline maintenance (infrastructure)
   - Homework is [here](materials/6-data-pipeline-maintenance/homework/homework.md)
   - Day 1 Lecture is [here](https://www.dataexpert.io/lesson/data-pipeline-maintenance-day-1-lecture-yt)

bootcamp/materials/1-dimensional-data-modeling/Makefile

@@ -17,6 +17,14 @@ down:
 		docker rm ${DOCKER_CONTAINER}; \
 	fi
 
+.PHONY: stop
+stop:
+	docker compose stop
+
+.PHONY: start
+start:
+	docker logs start
+
 .PHONY: restart
 restart:
 	docker compose down -v; \

bootcamp/materials/1-dimensional-data-modeling/README.md

@@ -136,7 +136,18 @@ There are two methods to get Postgres running locally.
 2. Go inside the container by executing `docker exec -it <container_name_or_id> bash`
 3. Run `pg_restore -U $POSTGRES_USER -d $POSTGRES_DB /docker-entrypoint-initdb.d/data.dump` 
 
----
+## **Frequently Asked Questions (FAQs)**
+
+1. **Not able to connect Postgres running on Docker?**
+   - Please recheck details like host and port details.
+
+2. **Throwing errors like connection refused even when all details are correct.**
+   - Please check that the port(5432 or port you use) runs only docker service, not any other services.
+     - Windows - use the command to check port availability in cmd ```netstat -ano | findstr :5432```
+               - to kill rest of extra services use ```taskkill /PID <PID> /F```
+     - Mac - use the command on terminal to check port availability ```lsof -i :5432```
+           - to kill rest of extra services use ```kill -9 <PID>```
+   
 
 #### 💡 Additional Docker Make commands
 

bootcamp/materials/3-spark-fundamentals/README.md

@@ -6,7 +6,10 @@ You need to install the required dependencies in `requirements.txt`
 
 Running `pip install -r requirements.txt` will install them.
 
-Running pytest is easy. You just need to run `python -m pytest` and you're good to go!
+> **_NOTE:_** Make sure to have spark set locally before running below.
+
+
+Running the pytest is easy. You need to run `python -m pytest` and you're good to go!
 
 
 
@@ -22,4 +25,4 @@ Or `docker compose up` if you're on Windows!
 
 Then, you should be able to access a Jupyter notebook at `localhost:8888`.
 
-The first notebook to be able to run is the `event_data_pyspark.ipynb` inside the `notebooks` folder.
+The first notebook to be able to run is the `event_data_pyspark.ipynb` inside the `notebooks` folder.