Cognitive Hub

Hi folks!

I know it’s been quiet here for quite some time. I took a break, but now I’m back and planning to create fresh content around Data Engineering 🚀

I’ll be focusing on practical topics like SQL optimization, Databricks workflows, and real-world scenarios.

Would really appreciate your input:What kind of videos would help you the most right now?

Drop your suggestions below—let’s make this useful for everyone 🙌

2 months ago | [YT] | 1

Cognitive Hub

#LearnDatabricks

50. In Azure Databricks, what is the purpose of the %lsmagic command in a notebook cell?

1 year ago | [YT] | 11

Cognitive Hub

#LearnDatabricks

49. Which of the following is a correct syntax for displaying the first few rows of a DataFrame in Azure Databricks?

1 year ago | [YT] | 7

Cognitive Hub

#LearnDatabricks

48. What is the purpose of the %run command in Azure Databricks notebooks?

1 year ago | [YT] | 27

Cognitive Hub

#LearnDatabricks

47. Which of the following is a correct syntax for reading data from an external table in Azure Databricks?

1 year ago | [YT] | 22

Cognitive Hub

#LearnDatabricks

46. In Azure Databricks, what is the purpose of the %pip command in a notebook cell?

1 year ago | [YT] | 15

Cognitive Hub

#LearnDatabricks

45. Which of the following is a correct syntax for writing data to a Parquet file in Azure Databricks?

1 year ago | [YT] | 19

Cognitive Hub

#LearnDatabricks

44. What is the purpose of the broadcast() function in Spark programming within Azure Databricks?

1 year ago | [YT] | 10

Cognitive Hub

#LearnDatabricks

43. Which of the following is a correct syntax for performing a union operation between two DataFrames in PySpark?

1 year ago | [YT] | 3

Cognitive Hub

#LearnDatabricks

42. What is the purpose of the groupBy() function in Spark programming within Azure Databricks?

1 year ago | [YT] | 12