OpenEuphoria

Re: problem

• Posted by George Walters <gwalters at sc.rr.com> Oct 14, 2003
• 488 views

I found the mistake, but I don't understand the difference. The very end of
the string was incorrect...

out[length(out)] = ')' -- replace trailing comma with paren.
was wrong.
out = out[1..length(out)-1] & ")"
was correct. Here I clipped off the trailing comma and appended the")" and
mysql did not complain. I don't understand the difference. If any one does
please explain. when put "puts(1,out)" you can't tell the difference.

george

----- Original Message -----
From: "George Walters" <gwalters at sc.rr.com>
To: "EUforum" <EUforum at topica.com>
Sent: Monday, October 13, 2003 8:55 AM
Subject: Re: problem


>
> Matt,
>
> The error reported from "odbcError(-tmp)" is: I can't cut and paste it,
I've
> type'd it
>
> ODBC Error #42000: 42000[MySQL][IDBC 3,51 /druver][mysqld-3,23.54-nt]You
> have an error in your SQL syntax
> near " at line2
>
> "record" var is attached.
>
> Here's the code for getColumnTypes.... all I've done is to change the name
> of getColumnData to getColumnTypes and return data_type instead of data.
> Seems to work.
>
> --/func getColumnTypes( atom hstmt )
> --Pass the handle for the statement in question, and a sequence of column
> types
> --will be returned to be used on converting outbound data going back to
the
> --data base.  If hstmt is 0, uses the current handle.
> global function getColumnTypes( atom hstmt )
>     object data, data_type
>     atom h_ptr, ok, mset, handle, ptr1, ptr2, ptr3, ptr4, ptr5, ptr6,
>         ptr7, len, hs, rec_count
>     integer cols, row
>
>     if not hstmt then
>         hstmt = current_handle
>     else
>         current_handle = hstmt
>     end if
>
>     hs = getHandleODBC( hstmt)
>
>     h_ptr = allocate( 4 )
>     poke4( h_ptr, 0 )
>     ok = c_func( SQLNumResultCols, { hs, h_ptr } )
>
>     if not find( ok, { SQL_SUCCESS, SQL_SUCCESS_WITH_INFO } ) then
>         --odbcError( hstmt )
>         free( h_ptr )
>         return -hstmt
>     end if
>
>     cols = peek4u( h_ptr )
>     data = { repeat( {}, cols ) }
>     data_type = repeat( 0, cols )
>
>     ptr1 = allocate( 256 )
>     ptr2 = allocate( 4 )
>     ptr3 = allocate( 4 )
>     ptr4 = allocate( 4 )
>     ptr5 = allocate( 4 )
>     ptr6 = allocate( 4 )
>  poke4( ptr3, 0 )
>
>     row = 1
>     for i = 1 to cols do
>         ok = c_func( SQLDescribeCol, { hs, i, ptr1, 256,
>             ptr2, ptr3, ptr4, ptr5, ptr6 } )
>
>         data[row][i] = peek_string( ptr1 )
>         data_type[i] = peek4s( ptr3 )
>         if data_type[i] > #8000 then
>          data_type[i] -= #10000
>         end if
>     end for
>
>     last_datatype = data_type
>     free( ptr1 )
>     free( ptr2 )
>     free( ptr3 )
>     free( ptr4 )
>     free( ptr5 )
>     free( ptr6 )
>
>     return data_type
> end function
>
> ----- Original Message -----
> From: "Matt Lewis" <matthewwalkerlewis at yahoo.com>
> To: "EUforum" <EUforum at topica.com>
> Sent: Monday, October 13, 2003 8:35 AM
> Subject: RE: problem
>
>
> > > From: George Walters [mailto:gwalters at sc.rr.com]
> > >
> > > After listening to forum comments (thank you) and thinking a
> > > bit I don't beleive this problem has a solution. What I have
> > > done is to use a modified version of Matt's ODBC function
> > > getColumnData which returns the data from an SQL statement. I
> > > now have a getColumnTypes which returns data_type for each
> > > column of the table. Using this I know how to convert the
> > > data into an SQL statement to insert or replace the row.....
> > > at least that's my approach. I'm getting an error back as follows.
> >
> > Can you post the code for getColumnData?
> >
> > > syntax error near " at line 2
> >
> > Is this the exact error report?
> >
> > > anyone know what line 2 is?? The statement is
> > >
> > > tmp = execDirectODBC(connId, "insert into arCust values " & record )
> > >
> > > record is the string I've converted using data_type from the
> > > data base. I see nothing wrong with record, but it does have
> > > lots of "s.  I'm beginning to wonder if my string is too long
> > > and the system is breaking it into multiple lines and is
> > > breaking it at an inconvinent place?? record is approx 259
> > > chars long. Any body know?
> >
> > Can you post the value of record?
> >
> > I suspect that the solution is to probably use a prepared statement
<snip>

> > parameters:
> >
> > -- use however many ?'s as there are fields
> > ins = prepareSQL( connId, "insert into arCust values ( ?, ?, ?,..." )
> >
> > -- to insert a record:
> > for i = 1 to length(record) do
> >     -- where c_type is a sequence of the c data types you're using
> >     -- and sql_type is a sequence of the sql data types
> >     setParameter( ins, i, record[i], c_type[i], sql_type[i] )
> > end for
> > result = executeSQL( ins )
> >
> > For instance, for a date, you could use a string c type and a sql date
> type.
> > That tells the ODBC driver that it needs to parse the date from its
string
> > format into whatever internal format it needs, and the sql type allows
it
> to
> > do type checking on the data.  I'll try to make the docs clearer on
this,
> > but part of the problem is that I'm learning as I go, too.
> >
> > Matt Lewis
> >
> >
> > TOPICA - Start your own email discussion group. FREE!
> >
> >
>
>
> TOPICA - Start your own email discussion group. FREE!
>
>