Personal notes and practice materials built while developing SQL skills for data analysis.
-
Updated
Mar 28, 2026 - PLpgSQL
#
null-handling
Here are 5 public repositories matching this topic...
A two-phase SQL project that cleans a real-world tech layoffs dataset and performs exploratory analysis to surface trends across companies, countries, industries, and time.
mysql sql exploratory-data-analysis string-manipulation cte joins aggregation data-cleaning deduplication self-join window-functions data-type-conversion null-handling
-
Updated
Jun 4, 2026
🔍 MySQL data cleaning & EDA on world layoffs dataset
mysql sql exploratory-data-analysis cte standardization data-cleaning deduplication window-function null-handling staging-table layoffs-dataset
-
Updated
May 15, 2026
This project demonstrates practical SQL skills used for data analysis, database management, and backend data operations.
views schema joins filtering stored-procedures triggers grouping er-diagram subqueries aggregate-functions dml-commands null-handling
-
Updated
May 26, 2026 - TSQL
There are seven business-critical questions solved using SQL
-
Updated
Jun 30, 2024
Improve this page
Add a description, image, and links to the null-handling topic page so that developers can more easily learn about it.
Add this topic to your repo
To associate your repository with the null-handling topic, visit your repo's landing page and select "manage topics."