On 2013-02-06, JORGE MALDONADO <jorgemal1...@gmail.com> wrote: > --f46d0401fb2fcb805e04d50354b1 > Content-Type: text/plain; charset=ISO-8859-1 > > I have an UPDATE query with the following general structure: > > UPDATE table1 SET (SELECT field FROM table2 WHERE conditions ORDER BY > order_field LIMIT 1)
assuming you mean this, and you are happy with its performance. UPDATE table1 SET field1 = (SELECT field FROM table2 WHERE conditions ORDER BY order_field LIMIT 1) > Is it possible to assign a default value in case no results are returned by > the SELECT statement? use coalesce. UPDATE table1 SET field1 = coalesce( (SELECT field FROM table2 WHERE conditions ORDER BY order_field LIMIT 1) , default_value ) -- ⚂⚃ 100% natural -- Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-sql
