> (This drove me bananas in gambas2.) Is there now (in gambas 3) a way to > get the key of the row just inserted into the database when the key is a > surrogate key e.g. a SQLite "serial"? > For example, in the following, the "items" table has a surrogate key > called "id" which is a simple serial. > > Private Sub CreateItem(item As Todoitem) > > Dim hRslt As Result > > hRslt = hConn.Create("items") > If hRslt.Available Then > Marshall(item, hRslt) 'Moves the item data into the result fields > hRslt.Update > > ' So what's the value of the id field??? According to hRslt!id > it is still blank. > > Endif > > End > > I've tried several ways to read the table and try to determine which row > was just added, but there are too many problems like > a) someone else may have inserted another row between the update and the > re-read, so I cant just look at the "highest" id > b) I or someone else may be inserting copies of an existing row, i.e. > all the non-key fields now exist in more than one row. > c) In postgresql, it is possible to create a pseudo query function that > adds the new row and returns the key of it, but > 1) this is postgresql specific > 2) it means I have to use hConn.Exec instead of the nice simple > gambas routines > 3) it is messy code in the database and the function has to be > created and maintained for each table > > Surely someone has come up with an answer to this? > > Bruce
This feature is missing, mainly because there is no standard way to do that in SQL, and I don't know if there is a function for that in all SQL DBMS. -- Benoît Minisini ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user