Need Heip For SQL Query

Question

Hi Friends,
I am too muchconfused about an sql query. I've created a html page where I select one radio button . The value of this radio button is passed to the query.Now the out put of the query is used in developing the output.
For illustration I show you the source code.
Radio Button Selection page.
<form action="service.html" method="post"> <h3><strong>Services Available</strong></h3>   <p>     <label>       <input type="radio" name="service" value="si"  />       Institutions</label>     <br />     <label>       <input type="radio" name="service" value="sc" />       Corporate_Offices</label>     <br />     <label>       <input type="radio" name="service" value="sr" />       Restaurent_Cafe</label>     <br />     </p>   <label>     <input type="submit" value="Submit" />   </label> </form>
Now the query page-
<sql:query var="empList" scope="session"> select <c:out value="${param.service}" /> from map_service where cityname = ? <sql:param value="${param.cityname}" />   </sql:query>
Now I need to generate output with the given below value in the next page-
<c:out value="${param.service}" />
This value show value as si, sc sr only where I need the database table value as per selection.
I am really confused that what I should write as <c:out value="${...
My database table has attributes as cityname, si, sc, sr. etc.
when some one select si from radio button the value of radio button is passed to sql query and the value which is selected on the table after query should be used in developing output result please help.

Answer 1

Dear Friend Is it not possible for any of you to give me a clue that if I've to get the output of *?* from the query what I can write in syntax.
<sql:query var="empList" scope="session">
select ? from map_service
where cityname = ?
<sql:param value="${param.service}" />
<sql:param value="${param.cityname}" />
</sql:query>
<c:out value="${empList.param.service}" />Output of the value of ? from the database select ? from map_service Any idea