diff --git a/mariadb.js b/mariadb.js
index ff24168..28c096c 100644
--- a/mariadb.js
+++ b/mariadb.js
@@ -5,7 +5,20 @@ const pool = mariadb.createPool({
     password: "llopis.19263",
     connectionLimit: 5
 });
-pool.getConnection(){
-    .then(conn => {}
-
-    })
\ No newline at end of file
+pool.getConnection()
+    .then(conn => {
+    
+      conn.query("SELECT 1 as val")
+        .then(rows => { // rows: [ {val: 1}, meta: ... ]
+          return conn.query("INSERT INTO myTable value (?, ?)", [1, "mariadb"]);
+        })
+        .then(res => { // res: { affectedRows: 1, insertId: 1, warningStatus: 0 }
+          conn.release(); // release to pool
+        })
+        .catch(err => {
+          conn.release(); // release to pool
+        })
+        
+    }).catch(err => {
+      //not connected
+    });
\ No newline at end of file