perform an update query for over 200 items - sql

Question

In access I have an update function where I can update information in an inventory database 1 at a time. I enter the Item name and I able to update the cost as well as a date.
Is there a way to write an sql Query to perform an update for 200 unique items?
EDIT:
I have
|ITEM NAME|ITEM COST|DATE CHANGE|
|A |$2.00 |1/1/1111 |
|B |$3.50 |1/2/1111 |
|C |$4.50 |1/3/1111 |
Let's say there are over 200 item names, I'd want to run a query to keep the item name but update the prices and date
|ITEM NAME|ITEM COST|DATE CHANGE|
|A |$3.00 |1/4/1111 |
|B |$1.50 |1/5/1111 |
|C |$84.50 |1/6/1111 |
I feel the only way to do it is to just do one long update, but I don't know if there is something better to do that.

Answer 1

I'm not sure if you mean that there's duplicate rows.. But I hope this could help by using the DISTINCT keyword from SQL. So if you were to write an update sql query it would be something like this:
UPDATE Accomodation
SET AccomodationName = "YourChoice"
WHERE AccomodationPrice = (SELECT DISTINCT AccomodationPrice
FROM Accomodation)
For more information about distinct, you can see here.

Answer 2

With a data table called Inventory and another table, Updates, with the same structure containing the 200 or so changes, the update would look like
UPDATE Inventory INNER JOIN Updates ON Inventory.[Item Name] = Updates.[Item Name] SET Inventory.[Item Cost] = [updates].[item cost], Inventory.[Date Change] = [updates].[date change];