You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@cocoon.apache.org by Marcus Crafter <cr...@dresdnerbank.de> on 2000/11/04 13:51:07 UTC
[C2] xsp in esql ? (was Re: [C2] esql connections diff)
Hi Donald (and others),
What are your thoughts about being able to parameterize the queries
with your suggested syntax, perhaps with xsp ? For example:
<esql:connection>
<esql:driver>...</esql:driver>
<xsp:logic>
for (int i=0; i < sz; i++) {
<esql:execute-query>
<esql:query>
INSERT INTO mytable VALUES
('<xsp:expr>field[i]</xsp:expr>');
</esql:query>
</esql:execute-query>
}
</xsp:logic>
</esql:connection>
This is something we've done here in C1 using the SQL processor (xsp
is done first, then the sql processor). Such abilities in esql would
also be very useful.
I guess it's a general question about using xsp within esql.
What do you think ? (or is this already possible ?)
Cheers,
Marcus
--
.....
,,$$$$$$$$$, Marcus Crafter
;$' '$$$$: Computer Systems Engineer
$: $$$$: Open Software Associates GmbH
$ o_)$$$: 82-84 Mainzer Landstrasse
;$, _/\ &&:' 60327 Frankfurt Germany
' /( &&&
\_&&&&' Email : Marcus.Crafter@osa.de
&&&&. Business Hours : +49 69 9757 200
&&&&&&&: After Hours : +49 69 49086750
Re: [C2] xsp in esql ? (was Re: [C2] esql connections diff)
Posted by Donald Ball <ba...@webslingerZ.com>.
On Sat, 4 Nov 2000, Marcus Crafter wrote:
> Hi Donald (and others),
>
> What are your thoughts about being able to parameterize the queries
> with your suggested syntax, perhaps with xsp ? For example:
>
> <esql:connection>
>
> <esql:driver>...</esql:driver>
>
> <xsp:logic>
> for (int i=0; i < sz; i++) {
> <esql:execute-query>
> <esql:query>
> INSERT INTO mytable VALUES
> ('<xsp:expr>field[i]</xsp:expr>');
> </esql:query>
> </esql:execute-query>
> }
> </xsp:logic>
>
> </esql:connection>
>
> This is something we've done here in C1 using the SQL processor (xsp
> is done first, then the sql processor). Such abilities in esql would
> also be very useful.
>
> I guess it's a general question about using xsp within esql.
> What do you think ? (or is this already possible ?)
yes, it's already possible - you want to use prepared statements here so
that you don't have to worry about escaping apostraphes and such. try:
<esql:statement>insert into mytable values (
<esql:parameter><xsp:expr>field[0]</xsp:expr></esql:parameter>
)
</esql:statement>
i'm probably going to merge the statement and query elements, i'll just
consider a query to be a prepared statement if a parameter element appears
inside it. :)
- donald