>
> --------------F6E00528E8927CCB0A9A2E2E
> Content-Type: text/plain; charset=EUC-KR
> Content-Transfer-Encoding: 7bit
>
> *** I'm not used to in English.. so will you do me a favor!
>
> I had implemented inserting into a DB and selecting from a DB
> and I'm tring to update a DB (Oracle) using Perl at this
time.
> but this isn't implemented .
>
> I had done following as :
> if table name is T1, field names are F1,F2,F3, and input
variables
> $V1,$V2,$V3
>
> $dbh->do("update T1 set F1=$V1, F2=$V2, F3=$V3 where
num=$v_num") || die
> DBI->errstr;
>
> that result is "ORA-00936: missing expression "
> but I don't know what I missed.
>
> I'll wait for your answer!!!
>
> --------------F6E00528E8927CCB0A9A2E2E
> Content-Type: text/html; charset=EUC-KR
> Content-Transfer-Encoding: 7bit
>
> <!doctype html public "-//w3c//dtd html 4.0
transitional//en">
> <html>
> *** I'm not used to in English.. so will you do me a favor!
> <p>I had implemented inserting into a DB and selecting from a
DB
> <br>and I'm tring to update a DB (Oracle) using Perl at this
time.
> <br>but this isn't implemented .
> <p>I had done following as :
> <br>if table name is T1, field names are F1,F2,F3, and
> input variables $V1,$V2,$V3
> <p><b>$dbh->do("update T1 set F1=$V1, F2=$V2, F3=$V3 where
num=$v_num")
> || die DBI->errstr;</b>
> <p>that result is "ORA-00936: missing expression "
> <br>but I don't know what I missed.
> <p>I'll wait for your answer!!!</html>
>
> --------------F6E00528E8927CCB0A9A2E2E--
>
>
>
One of your variables must be missing a value, effectively
turning your SQL string into:
"update T1 set F1=, F2=, F3= where num="
or some variant. No expressions means invalid SQL statement!
You are much better off using bind variables in the Perl
DBI/DBD,
instead of the dreaded substitutive $varnames.
This has to do with how statements like this are parsed by the
database engine.
Your statement might look like this instead:
"update T1 set F1=:v1, F2=:v2, F3=:v3 where num=:somenum"
*Prepare* the SQL statement (instead of "do") first!
Then set bind variables :v1, :v2, :v3 and :somenum to their
respective values prior to the "do" call.
See (specifically) the DBD-Oracle documentation for info
on bind variables - it's a little different than other
databases'
implementation (others use the "?" placeholder, oracle uses the
":var" nomenclature).
Hope this helps!
--
This answer is courtesy of QuestionExchange.com
http://www.questionexchange.com/showUsenetGuest.jhtml?ans_id=7168&cus_id=USENET&qtn_id=6907
Received on Thu Nov 04 1999 - 09:49:43 CST
