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imronyesterday at 6:43 AM1 replyview on HN

Sometimes it’s still the app:

   rows = select all accounts
   for each row in rows:
       update row
But that’s not necessarily a PHP problem. N+1 queries are everywhere.

Replies

silon42yesterday at 7:39 AM

Depending on what you are doing, the above is not necessarily bad.. often much better than an SQL that locks an entire table (potentially blocking the whole DB, if this is one of the key tables).