Operators like and not like

With like operator, you will search anything that look like your criterion.
Ex: like mac, you will find anything that contains mac inside, like bigmac, macbook, smack...

With not like, it's the opposite, you will find anything that not look like your criterion.
Ex: not like toto, you will find anything that not contains toto inside, like beer, crisps, friend...

Be careful: it's case sensitive.