create table dataset ( id integer not null, timestamp integer not null, data integer not null, unique (id, timestamp) );
> -----Original Message----- > From: sqlite-users-bounces at mailinglists.sqlite.org [mailto:sqlite-users- > bounces at mailinglists.sqlite.org] On Behalf Of Andrew Stewart > Sent: Monday, 7 December, 2015 08:01 > To: 'SQLite mailing list' > Subject: [sqlite] Making data unique > > Hi, > I have a table that consists of 3 elements: > ID - integer > Date/time - integer > Data - integer > A single ID can exist multiple times. > A single Date/time can exist multiple times. > An ID & Date/time combination is unique. > > What is the best way to ensure uniqueness in this table. > > Thanks, > Andrew Stewart > Software Designer > > Argus Controls > #101 - 18445 53 AVE > Surrey, BC V3S 7A4 > > t: 1-888-667-2091 ext : 108 > t: 1-604-536-9100 ext : 108 > f: 604-538-4728 > w: www.arguscontrols.com<http://www.arguscontrols.com/> > e: astewart at arguscontrols.com<mailto:astewart at arguscontrols.com> > > Notice: This electronic transmission contains confidential information, > intended only for the person(s) named above. If you are not the intended > recipient, you are hereby notified that any disclosure, copying, > distribution, or any other use of this email is strictly prohibited. If > you have received this transmission by error, please notify us immediately > by return email and destroy the original transmission immediately and all > copies thereof. > _______________________________________________ > sqlite-users mailing list > sqlite-users at mailinglists.sqlite.org > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
