However DB2 (9.5) and Oracle (10) do not support update from. I really wish all major player would come together and level the playing field.
On 2 Dec 2009, at 00:53, Kerry Sainsbury wrote: > MS SQL Server also supports "update... from", but it has essentially been > superceeded in SQL Server 2008 via the "merge" command. "merge" even conforms > to SQL 2003. > > http://sqlblog.com/blogs/hugo_kornelis/archive/2008/03/10/lets-deprecate-update-from.aspx > > http://en.wikipedia.org/wiki/Merge_%28SQL%29 > > Of course H2 already supports the "merge" command :-) > > Cheers > Kerry > > > On Wed, Dec 2, 2009 at 9:15 AM, Alexander Hartner > <[email protected]> wrote: > Is this not an extension to ANSI SQL ? If it is I would prefer not to have it > to prevent creating database specific code. After all that is the purpose of > an SQL standard. > > > On 1 Dec 2009, at 20:11, Franklin Schmidt wrote: > > > Both Postgres and MySQL allow using a join in an update statements. > > For example, in Postgres I could do: > > > > update totals > > set total = total + increments.inc > > from increments > > where totals.id = increments.id > > > > The closest one can come with H2 is: > > > > update totals > > set total = total + (select inc from increments where totals.id = > > increments.id) > > where exists (select inc from increments where totals.id = > > increments.id) > > > > which is ugly and I think will do each join twice. It would be nice > > if H2 had better syntax for this. > > > > -- > > > > You received this message because you are subscribed to the Google Groups > > "H2 Database" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > > http://groups.google.com/group/h2-database?hl=en. > > > > > > -- > > You received this message because you are subscribed to the Google Groups "H2 > Database" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/h2-database?hl=en. > > > > > -- > > You received this message because you are subscribed to the Google Groups "H2 > Database" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/h2-database?hl=en. -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/h2-database?hl=en.
