sorry, I posted a wrong souce code, my source code should be the following lines:
===========================================================
ad_page_contract {
@author char.wang
@creation-date 2003-7-14
}
set issue 113
set query1 "SELECT cm_magazine.issue FROM cm_magazine WHERE cm_magazine.issue = $issue"
set IfIssueExist [db_0or1row {dummy1} $query1]
set artID AXT1113
set query2 "SELECT cm_index.articleid FROM cm_index WHERE cm_index.articleid=$artID"
set cm2 [db_0or1row {dummy2} $query2]
ad_return_template
===========================================================
