Today I explored SQL functions small, built-in commands that transform or summarize data. They’re grouped into: 💡 Practical Example Idea: Use DATEPART() to extract the month from an admission date, then group admissions by month for seasonal trend analysis in respiratory illnesses. I’m still experimenting with these on sample data, but the potential for transforming…
Tag: healthcare analytics
Introduction to SQL Joins (INNER, LEFT, RIGHT, FULL)
Today I started with SQL joins, which let you pull data from multiple tables in a single query. So far, I’ve covered: 💡 Practical Example Idea: In a clinical setting, you could join a patient demographics table with a lab results table to see both in one view, could be useful for reviewing patient outcomes…