SQL functions like COUNT(), SUM(), AVG(), MIN(), and MAX() allow you to summarize and calculate data directly in your queries. Example: This counts patients on warfarin. 💡 Future clinical idea: Use AVG() to calculate the average length of stay for patients on a specific antibiotic regimen to track stewardship outcomes.
Tag: data transformation
SQL Functions for Data Transformation
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…