Hi Igor, Many thanks for that.
For this example I'm updating a single column (c2). If I needed to update multiple columns in the table would I need to use the SELECT construct for each column? Cheers, Dave Ward Analytics Ltd - information in motion Tel: +44 (0) 118 9740191 Fax: +44 (0) 118 9740192 www: http://www.ward-analytics.com Registered office address: The Oriel, Sydenham Road, Guildford, Surrey, United Kingdom, GU1 3SR Registered company number: 3917021 Registered in England and Wales. -----Original Message----- From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Igor Tandetnik Sent: 08 June 2013 20:01 To: sqlite-users@sqlite.org Subject: Re: [sqlite] Updating a table from itself On 6/8/2013 2:51 PM, Dave Wellman wrote: > update t1 from (select c1,c2 from t1) as dt1 set c2 = dt1.c2 where > t1.c1 = dt1.c2 - 1; update t1 set c2 = coalesce((select c2 from t1 dt1 where t1.c1 = dt1.c2 - 1), c2); -- Igor Tandetnik _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
