Best method - update multiple items

Question

Hello all. I have 2 tables. One called deposits and another called items. 1 deposit can have 1 or many items.
Hence the item table looks like this
|  item_num      |  item_name     |   deposit_id    |
|       1        |   bike         |          1      |
|       2        |   helmet       |          1      |
|       3        |   bike         |          2      |
-----------------------------------------------------Now, I would like to update deposit 1. I would like to remove helmet from the deposit. The way I figure to do it is to do the following:
1) Remove all items where deposit id = 1
2) Add new items found in text area and set their deposit id to 1.
Would this be the correct way to do it? Update ??

Answer 1

Nah, its a bit awkard, or perhaps my brain matter isn't dense enough to get it :D
I could delete multiple items from a text area.
ie before the text area may look like this:
bike
helmet
gloves
lights
Then after the update it may look like
bike
bike
gloves
I opted for the delete all then re-inputted the answers. Thanks for your response anyway Eric H.