On Fri, Nov 14, 2014 at 9:53 AM, Reimar Grabowski <reimg...@web.de> wrote:
> On Thu, 13 Nov 2014 11:33:58 -0300 > silvioprog <silviop...@gmail.com> wrote: > > > I use an own "TPreparedStatement" (equivalent to TSQLQuery prepared + > > Params, but my structure does not uses TDataset) that I get the last > > inserted ID with (pseudo codes): > <snip> > Sorry, you lost me there, but not a problem (see my response to Marcos). > > Thanks anyway I saw. The "problem" which I see is just: Query.SQL.Text := 'SELECT LAST_INSERT_ID() AS SomeNameIChoose;'; Query.Open; << here ID := Query.Fields[0].AsInt64; This approach is ugly IMHO. So I use "INSERT X (FIELDS) VALUES (PARAMS) RETURNING PK", returning the generated ID in same SQL cursor which I used to prepare my statement. This idea is from JDBC and I'm using it daily. Works fine in all popular SGBDs. =) Even when the SGBD does not provides the "RETURNING" feature, I use the SQL cursor from the database driver to generate it without TDataset.Open. My complete code works only in FPC 2.7.1+, but in short words I get the generated ID via buffer (pointer) on database driver. -- Silvio Clécio My public projects - github.com/silvioprog
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