Thanks a lot Svein,I'll use your suggestion,I'll also need .OLD value and EXECUTE STATEMENT is not for this case.

----- Original Message ----
From: Svein Erling Tysvaer <svein.erling.tysvaer@...>
To: firebird-support@yahoogroups.com
Sent: Saturday, March 1, 2008 3:00:16 PM
Subject: Re: [firebird-support] How to evaluate expression to field value

I would simply have done

VAL_RESULT = NEW.SUM1
if (NEW.MONTH >= 2) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM2
if (NEW.MONTH >= 3) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM3
if (NEW.MONTH >= 4) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM4
if (NEW.MONTH >= 5) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM5
if (NEW.MONTH >= 6) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM6
if (NEW.MONTH >= 7) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM7
if (NEW.MONTH >= 8) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM8
if (NEW.MONTH >= 9) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM9
if (NEW.MONTH >= 10) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM10
if (NEW.MONTH >= 11) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM11
if (NEW.MONTH = 12) THEN
VAL_RESULT = VAL_RESULT+NEW. SUM12

I would be somewhat surprised if NEW. and OLD. was accessible if used as
part of the string called by EXECUTE STATEMENT, but I must admit that I
do not know.

Set

Mr. John wrote:

> Hi !
> I have one table withe some fields like this ...sum_1,sum2. ..sum_12 for every month.
> Inside of a trigger (before trigger) I need to get some of these for a given month-value
>
> I=0;VAL_RESULT= 0;
> WHILE (I<=NEW.MONTH) DO BEGIN
> VAL_RESULT=VAL_ RESULT+NEW. SUM_'||I;
> I=I+1;
> END
> EXECUTE PROCEDURE MYPROC(VAL_RESULT) ;
>
> or i have to use EXECUTE STATEMENT and get values directly from database
>
> Thanks a lot.

<!--

#ygrp-mkp{
border:1px solid #d8d8d8;font-family:Arial;margin:14px 0px;padding:0px 14px;}
#ygrp-mkp hr{
border:1px solid #d8d8d8;}
#ygrp-mkp #hd{
color:#628c2a;font-size:85%;font-weight:bold;line-height:122%;margin:10px 0px;}
#ygrp-mkp #ads{
margin-bottom:10px;}
#ygrp-mkp .ad{
padding:0 0;}
#ygrp-mkp .ad a{
color:#0000ff;text-decoration:none;}
-->

<!--

#ygrp-sponsor #ygrp-lc{
font-family:Arial;}
#ygrp-sponsor #ygrp-lc #hd{
margin:10px 0px;font-weight:bold;font-size:78%;line-height:122%;}
#ygrp-sponsor #ygrp-lc .ad{
margin-bottom:10px;padding:0 0;}
-->

<!--

#ygrp-mlmsg {font-size:13px;font-family:arial, helvetica, clean, sans-serif;}
#ygrp-mlmsg table {font-size:inherit;font:100%;}
#ygrp-mlmsg select, input, textarea {font:99% arial, helvetica, clean, sans-serif;}
#ygrp-mlmsg pre, code {font:115% monospace;}
#ygrp-mlmsg * {line-height:1.22em;}
#ygrp-text{
font-family:Georgia;
}
#ygrp-text p{
margin:0 0 1em 0;}
#ygrp-tpmsgs{
font-family:Arial;
clear:both;}
#ygrp-vitnav{
padding-top:10px;font-family:Verdana;font-size:77%;margin:0;}
#ygrp-vitnav a{
padding:0 1px;}
#ygrp-actbar{
clear:both;margin:25px 0;white-space:nowrap;color:#666;text-align:right;}
#ygrp-actbar .left{
float:left;white-space:nowrap;}
..bld{font-weight:bold;}
#ygrp-grft{
font-family:Verdana;font-size:77%;padding:15px 0;}
#ygrp-ft{
font-family:verdana;font-size:77%;border-top:1px solid #666;
padding:5px 0;
}
#ygrp-mlmsg #logo{
padding-bottom:10px;}

#ygrp-vital{
background-color:#e0ecee;margin-bottom:20px;padding:2px 0 8px 8px;}
#ygrp-vital #vithd{
font-size:77%;font-family:Verdana;font-weight:bold;color:#333;text-transform:uppercase;}
#ygrp-vital ul{
padding:0;margin:2px 0;}
#ygrp-vital ul li{
list-style-type:none;clear:both;border:1px solid #e0ecee;
}
#ygrp-vital ul li .ct{
font-weight:bold;color:#ff7900;float:right;width:2em;text-align:right;padding-right:.5em;}
#ygrp-vital ul li .cat{
font-weight:bold;}
#ygrp-vital a{
text-decoration:none;}

#ygrp-vital a:hover{
text-decoration:underline;}

#ygrp-sponsor #hd{
color:#999;font-size:77%;}
#ygrp-sponsor #ov{
padding:6px 13px;background-color:#e0ecee;margin-bottom:20px;}
#ygrp-sponsor #ov ul{
padding:0 0 0 8px;margin:0;}
#ygrp-sponsor #ov li{
list-style-type:square;padding:6px 0;font-size:77%;}
#ygrp-sponsor #ov li a{
text-decoration:none;font-size:130%;}
#ygrp-sponsor #nc{
background-color:#eee;margin-bottom:20px;padding:0 8px;}
#ygrp-sponsor .ad{
padding:8px 0;}
#ygrp-sponsor .ad #hd1{
font-family:Arial;font-weight:bold;color:#628c2a;font-size:100%;line-height:122%;}
#ygrp-sponsor .ad a{
text-decoration:none;}
#ygrp-sponsor .ad a:hover{
text-decoration:underline;}
#ygrp-sponsor .ad p{
margin:0;}
o{font-size:0;}
..MsoNormal{
margin:0 0 0 0;}
#ygrp-text tt{
font-size:120%;}
blockquote{margin:0 0 0 4px;}
..replbq{margin:4;}
-->






____________________________________________________________________________________
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs

[Non-text portions of this message have been removed]