OpenEuphoria

RE: tsunami question

• Posted by Ron Austin <ronaustin at alltel.net> Dec 17, 2003
• 477 views

George Walters wrote:
> 
> 
> Ron, I understand the Create function, but using this you have do define 
> all
> over again the characteristics of the file. I was hoping that a function
> existed that would simply clear the file and retain it's original
> characteristics.
> 
> george
> 
As far as I know, there is no "clear file". I have made an "init.exw 
program for each of my files, for instance DiagInit.exw creates the 
Diagnosis.dat file.  There is one line to define the file, two lines to 
create the two indexes and then the final line creates (or re-creates 
the file).  Since the init program had to be written to initally create 
the file, all you have to do is run it again to clear the file, or as I 
said earlier maybe it wood be good to put the procedure for creating all 
the indexes in one include file and call them as needed.  
ClearFile("Diagnosis.dat") or even CLearFile("Diagnosis") is all you 
would need.  Of course you would still have to be sure no one was using 
the file when you cleared it.  I imagine you are already doing that with 
your present file system anyway.
> ----- Original Message -----
> From: "Ron Austin" <ronaustin at alltel.net>
> To: <EUforum at topica.com>
> Sent: Wednesday, December 17, 2003 12:20 PM
> Subject: RE: tsunami question
> 
> 
> > George Walters wrote:
> > >
> > >
> > > I don't see a function to clear a tsunami file w/o deleteing it and
> > > recreating it. Did I over look this? I have a lot of files that are
> > > cleared
> > > at the end of the month or year as well as transaction files that need
> > > to be
> > > cleared after being posted.
> > >
> > > george
> > > when you create a file using trm_Create("my.dat",flag), if flag=1 then
> > > you can re-create and clear the file.  If flag=0 and you try to recreate
> > > the file you get a warning message.  If you used flag=1 then you could
> > > write an include file with procedure that would re-create and clear the
> > > file.  You don't have to erase the file first.
> > >
> >
> > TOPICA - Start your own email discussion group. FREE!
> >
> >