There are five different options how to edit your table data:
(1) Inline

That is what the editing looks like with this option:

(2) Edit Form

This is what the editing looks like with this option:

(3) Edit Form and Display Row

This is what the editing looks like with this option:

(4) Popup Edit Form

This is what the editing looks like with this option:

(5) Batch Mode

This is what the editing looks like with this option:

In the Batch mode you can edit all of your records at once.