In the previous exercise we were able to import the 'sqlite3' library and use that to open our SQLite database — so far so good! But we still haven't retrieved any information from it. Since we have access to our database as a JavaScript object, let's try running a query on it. Recall that a query is a statement that speaks to a database and requests specific information from it. To execute a query and retrieve all rows returned, we use db.all(), like so:
db.all("SELECT * FROM Dog WHERE breed='Corgi'", (error, rows) => {
printQueryResults(rows);
});
In the previous example, we used the db.all() method to retrieve every dog of breed "Corgi" from a table named Dog and print them.