Re: [GENERAL] Need efficient way to do comparison with NULL as an option

[Lew]

D. Dante Lorenso wrote:

But if I want to find all the items which are not in any folder, I want:

  SELECT *
  FROM mytable
  WHERE folder_id IS NULL;

I don't have any folder_id 0, so on a URL I might do this:

  http://xyz/page.php?fid=123
  http://xyz/page.php?fid=0

SELECT * FROM mytable WHERE COALESCE( folder_id, 0 ) = 0;

--
Lew

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