On Sat, 16 Aug 2003, [iso-8859-1] Deepak Malhotra wrote:
> Hello
>
> Any idea why I am getting
> "ERROR: More than one tuple returned by a subselect
> used as an expression"
> while running update statement using subselect
> statement.
That usually means you're using a subselect that returns
multiple rows in a context where a scalar is expected,
for example
update foo set bar = (select abc from def);
works if def has 0 rows (giving a NULL) or 1 row (giving a value),
but if the subselect returned say 3 rows, which gets used to
update each row from foo?
