Update multiple rows with one query

Question

How can I update hundreds of rows at once?

Like: UPDATE table SET a = ? WHERE b = ? AND c = 1

but for many rows. The ? parameters a

Answer 1

Use the CASE method as described in the link you provided, but build the query dynamically with the values you want.

Likely, this will be built with a for loop similar to how you're already doing it, but you will end up with a single query rather than querying your database every iteration.