On Thu, Oct 14, 2010 at 10:54 AM, Kavita Raghunathan <kavita.raghunat...@skyfiber.com> wrote: > 3. How can I make my primary ID remain sequential even after a delete of row. > Can sqlite somehow realign the indices after a row in the middle is deleted ? >
If you can change the "primary ID" (sic), by which, I am assuming you are referring to the primary key, then it won't really be the primary key. PK should be immutable. Create a separate ID that can be under your control, and change it as you wish. > > On 10/14/10 10:53 AM, "Kavita Raghunathan" <kavita.raghunat...@skyfiber.com> > wrote: > > Hello, > I’ve been adding and deleting rows from the sqlite database. Now the primary > ID is non-sequential. > > > 1. How do I get the nth entry in the database > 2. AND, How do I get the first n rows from the database ? > Both "nth" and "first n" depend upon the sort order. Sort the table the way you want, and then get the nth or the first n (use LIMIT/OFFSET) to get the desired rows. The db by itself has no sort order, although, if you have numeric PK, there is an implicit ascending sort on PK. > > Thanks, > Kavita > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- Puneet Kishor http://www.punkish.org Carbon Model http://carbonmodel.org Charter Member, Open Source Geospatial Foundation http://www.osgeo.org Science Commons Fellow, http://sciencecommons.org/about/whoweare/kishor Nelson Institute, UW-Madison http://www.nelson.wisc.edu ----------------------------------------------------------------------- Assertions are politics; backing up assertions with evidence is science ======================================================================= _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
