On 27 Apr 2012 at 22:16, Simon Slavin <slav...@bigfraud.org> wrote: > On 27 Apr 2012, at 9:00pm, Tim Streater <t...@clothears.org.uk> wrote:
>> delete from addressbook where absid=(select personnick from grouplinks where >> groupnick='27') >> >> The 'select personnick ...' can return zero, one, or many results, and I'd >> like to have the 'delete from ...' delete zero, one, or many rows from the >> addressbook table. How can I do that with a single statement in SQLite, or is >> it not possible? > > The sub-SELECT evaluates to a list, not an individual number. And 'absid' > will never equal a list. You probably mean > > DELETE FROM addressbook WHERE absid IN (SELECT personnick FROM grouplinks > WHERE groupnick = '27') > > or something like that. The syntax tree for DELETE can be found here: > > <http://www.sqlite.org/lang_delete.html> Simon, Yes. I confess to being a mere hacker where SQL itself is concerned. I should really have looked up the syntax for expr: <http://www.sqlite.org/lang_expr.html> -- Cheers -- Tim
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