how do I do this UPDATE in sqlite?

Posted by Jason S on Stack Overflow See other posts from Stack Overflow or by Jason S
Published on 2011-01-07T03:48:57Z Indexed on 2011/01/07 3:53 UTC
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Filed under:

sqlite

|

join

|

update

I have a table assoc containing columns

local_id, remote_id, cachedData

I can successfully run an SQLITE query that looks like

SELECT a1.local_id, a1.remote_id FROM assoc a1 LEFT JOIN ....

so that I identify certain rows of the assoc table that meet my criteria.

What I would like to do is to set cachedData to null in those rows.

How can I do this? Sqlite doesn't support UPDATE with joins; you can issue subqueries but I can't figure out how to get the syntax correct; it seems nonintuitive to me.

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