Simon, On Thu, Oct 31, 2013 at 9:39 PM, Simon Slavin <slav...@bigfraud.org> wrote: > > On 1 Nov 2013, at 4:15am, Igor Korot <ikoro...@gmail.com> wrote: > >> I'm not trying to change an order of my rows. >> Look at it this way: >> I have a league with some teams. When the league is created the >> players needs to be put in from the players pool. In order to assign >> the rank inside the league I am inserting players with the rank as >> NULL. In this case will be assigned as 1,2,3,4,etc based on the player >> pool rank. >> Now it is possible to insert a new player in the league. If I insert a >> new player with the value of 0 then the same rule apply - the rank of >> the new player will be max( rank ) + 1. Otherwise the new player will >> be inserted by the value. So if I insert the new player with the value >> of $5.00 and there are players with the values $0 - $5 they needs to >> be moved in rank. >> >> Is it more clear now? > > I understood it before. You're doing something that doesn't reflect the way > SQL works. SQL is for holding your data and spitting it back out to you, not > for implementing your business logic.
I'm not sure I understand. Are you saying that I don't have to populate the rank in the table on insertion? > > Given your description above, why try to get all the ranks right every time > you do an INSERT ? Because right after insert I am displaying those records and the rank field is the second field in the sorting algorithm. So, on creating the league I do an insert and then do a sorting and display all those records. Thank you. > Add the player rows, and include a field with the player's value when you're > doing the INSERT. If the ranks aren't used very much between changes, deduce > them when you need them by doing an "ORDER BY value DESC". Or if at some > stage you use the rank numbers a lot, write values to a rank column just > before you do all the reporting and don't allow INSERTs until the reporting > is done. > > Simon. > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
