SQL
projects
Querying, joining, and shaping data for reports and analysis.
Each write-up starts with the business question, the tables involved, how the query was structured, and what the result showed.
Used my knowledge of the database schema and SQL commands to find out who committed the murder.
SQL Murder Mystery
A schema-first investigation: I explored related tables, wrote joins and filters, and used the clues in the data to identify who committed the murder. The write-up lives with the SQL solution in GitHub.
I use the same habit on delivery work — understand the data model, test the question in SQL, then document what the result means for the business.