Maybe you can reformulate the query to fit INSERT OR UPDATE INTO t SELECT t.a,t.b,...,s.x,s.y FROM t, s ...
-----Ursprüngliche Nachricht----- Von: Mark Lawrence [mailto:no...@null.net] Gesendet: Montag, 15. September 2014 10:51 An: sqlite-users@sqlite.org Betreff: [sqlite] SET (x,y) = (x1,y1)? I occasionally have the need to update two columns based on complex sub queries, which are often very similar UPDATE t SET x = ( SELECT 1...), y = ( SELECT 2...) -- nearly the same as SELECT 1 ; Normally one could use a CTE to do the work once: WITH cte AS ( SELECT 1 AS x, 2 AS y ) UPDATE t SET x = cte.x, y = cte.y ; However CTEs don't work within triggers. I was wondering hard it would be to support the SET syntax as shown in the subject line. I believe something like that works in PostgreSQL and I could use it in SQLite for performance reasons. UPDATE t SET (x,y) = (SELECT 1,2) ; Alternatively, is there any effort underway to make CTEs work inside triggers? -- Mark Lawrence _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users ___________________________________________ Gunter Hick Software Engineer Scientific Games International GmbH FN 157284 a, HG Wien Klitschgasse 2-4, A-1130 Vienna, Austria Tel: +43 1 80100 0 E-Mail: h...@scigames.at This communication (including any attachments) is intended for the use of the intended recipient(s) only and may contain information that is confidential, privileged or legally protected. Any unauthorized use or dissemination of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by return e-mail message and delete all copies of the original communication. Thank you for your cooperation. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
