INSERT

INSERT adds a row to a table. Name the target columns so the statement does not depend on implicit column order. In application code, bind values through a prepared statement rather than concatenating user input into SQL. The SQL example makes the inserted fields explicit. Further guidance Use migrations to version schema changes, constraints to protect relationships, and prepared statements for every dynamic value. Scope writes with a precise condition, check affected rows, and use transactions when multiple statements must succeed together. Store credentials outside source control. Practice task: Create a fresh example for INSERT. Predict the result before running it, then change one input and explain why the result changes. Test a normal case and one boundary or invalid case where it applies. Compare your output with the example and note one rule you would use in a real project.