One of the first essential skills in SQL is filtering data with the WHERE clause. It’s how you narrow your results to exactly what you need. Example: This query shows only patients older than 65. In the future, I could use this approach to quickly find all geriatric patients on a high-risk medication to support…
Tag: Filtering Data
Filtering Data with WHERE Clauses in SQL
As part of my SQL learning journey, I’ve reached one of the most practical topics so far: filtering data using the WHERE clause. This is where SQL starts feeling useful for real-world applications, even for clinicians like myself. The WHERE clause lets you pull only the data that meets certain conditions. This means you can…