Skip is used to specify the number of records to skip. It is available with only select.

It can be done in sql in no of ways, so i am not mentioning any particluar example.

JsStore

connection.select({
    from: "Table_Name",
    skip: number,
}).then(function(results) {
    //results will be array of objects.
    console.log(results);
}).catch(function(error) {
    alert(error.message);
});

Example