DELETE Query

Author: learning-zone

Diff for: nodejs-mysql/delete-record.js

@@ -1,14 +1,14 @@
 let db_pool = require('./config').mysql_connect; 
 
-
-let sql = `DELETE FROM employee WHERE id = 21`;  
+// Avoid SQL injection
+let sql = `DELETE FROM employee WHERE id = ?`;  
 
 // connect to the MySQL server
 db_pool.getConnection((err) => {  
   if (err) throw err;  
 
   // execute the SQL QUery
-  db_pool.query(sql, (err, result) => {  
+  db_pool.query(sql, [20], (err, result) => {  
     if (err) throw err; 
 
     console.log("Number of records deleted: " + result.affectedRows);