Let's add data to the students table we created earlier and read the result back.
INSERT INTO students (id, name, age) VALUES (1, "Ali", 16), (2, "Sara", 17); adds two rows in a single statement. Notice the column list (id, name, age) matches the order of every value group that follows it.
Query OK, 2 rows affected confirms exactly two rows were added this count is a useful sanity check; if you expected to insert 5 rows and it says 2, something in your statement needs a second look.
SELECT * FROM students; then reads every column (that's what * means: all columns) for every row currently in the table, letting you visually confirm the insert worked exactly as intended.
This insert-then-select pattern add data, then immediately look at it is one of the most common habits in everyday database work, especially while you're still learning to trust your own queries.