How to select a row, lock it, update it, then select again?

I have a table with these 3 columns:

  1. task (string)
  2. status (string)
  3. date (datetime)

I want to write a query that does the following:

  1. Selects the first row WHERE status != "In-Progress" Sorted by Date (oldest first), and Locks it – so other computers running this query concurrently can’t read it.
  2. Updates the Status column so status = "In-Progress".
  3. Return the row’s columns (like a regular Select * statement).

How do I write this query?

My main concern is that the row is only fetched by 1 computer, no matter how many concurrent instances are running.

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