Hi Monk

I have a webpage from which I am selecting some values to construct my sql query in my cgi script. For exanple, the webpage has the following content as its page source , 

<html>
<table>
<tr>
<td><select name='OPENBRACK1'>
<option value=''></option>
<option value='('>(</option>
</td>
<td>
<select name='FIELD1'>
<option value='CITY'>CITY</option>
<option value='NAME'>NAME</option>
</select>
</td>
<td >
<select name='COMP1'>
<option value='like'>like</option>
<option value='notlike'>not like </option
<td>
<input type=text name='VALUE1' maxlength=40 size=30 value=''></td>
<td ><select name='CLOSEBRACK1'>
<option value=''></option>
<option value=')'>)</option>
</td>
<tr>

<td colspan=7 align=center>
<input type='hidden' name='NoOfRows' value="1" />
<input type="button" value="Add Condition" onclick="addRowToTable();" 
+name="AddCondition" />
</td>
</tr>
</table>
</html>

[download]

By the "Add condition" button , I add a similar line of table data in the webpage. And assume that, I collect all these param infos in my cgi script as, 

$br1 = $cgi->param('OPENBRACK1');
$field1 = $cgi->param('FIELD1');
$value1 = $cgi->param('VALUE1');
$comp1  = $cgi->param('COMP1');
$br2 = $cgi->param('OPENBRACK2');
$field2 = $cgi->param('FIELD2');
$value2 = $cgi->param('VALUE2');
$comp2 = $cgi->param('COMP2');

[download]

So, upon submitting all these in a form, assume that I have all these infos in my cgi script. Now from these param infos how can I contruct a query like this :

select NAME,CITY from MyTable where NAME like %xyz% and CITY not like %abc%;

Please help me with the logic or if there is any other built-in mechanism in cgi perl (some function or ENV variables) which will help me construct such a query.
The diffculty I am facing is how many 'AND' or 'OR' conditions have been used by 'Add condition' button or so.Hope I could explain my problem clearly.

Thanks.

In reply to query construction from cgi perl params by ghosh123

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