Simply MySQL SP Fetch Rows Based on CSV Returning Only 1 Row

Question

I have a simply query to fetch products based on a comma separated list of IDs:

CREATE PROCEDURE `databaseName`.`fetchRecentlyViewed` (IN productIdCsv VARCHAR(128))
BEGIN
SELECT listingTitle, productName, productID FROM products WHERE productID IN (productIdCsv );
END

If I run this query against it:

CALL fetchRecentlyViewed ('6,7,4,3')

I only ever get the first product returned - its so simple I really don't know where to go from here!

I'm missing something obvious I'm sure!

Answer 1

So it seems that the most popular answer in the question relating to this also only returns one row: Pass array to MySQL stored routine

If you want to return more than one row, you need to use FIND_IN_SET

Here's a good resource on this:

FIND_IN_SET() vs IN()