> On Mar 19, 2020, at 6:45 PM, pabloa98 <pablo...@gmail.com> wrote: > > > > On Thu, Mar 19, 2020 at 5:13 PM Adrian Klaver <adrian.kla...@aklaver.com > <mailto:adrian.kla...@aklaver.com>> wrote: > On 3/19/20 3:32 PM, pabloa98 wrote: > > > > > > On Thu, Mar 19, 2020 at 3:17 PM Rob Sargent <robjsarg...@gmail.com > > <mailto:robjsarg...@gmail.com> > > <mailto:robjsarg...@gmail.com <mailto:robjsarg...@gmail.com>>> wrote:I have > > a table called "pair": > > CREATE TABLE pair( > group INT NOT NULL, > element INT NOT NULL, > CONSTRAINT PRIMARY KEY (group, element) > ); > > I must add entries to the table "event". This table event will have a code > that will be generated using a sequence of that is a function of > s(group,element). > CREATE TABLE event( > group INT NOT NULL, > element INT NOT NULL, > code INT NOT NULL, > CONSTRAINT PRIMARY KEY(code, element, group) > ); > Unless event table is searched by code more than group, you probably want to maintain the key order from the pair table's primary key.
If gaps are ok do you still near multiple sequences?
