var name =getItemValue("A字段-日期");
var sql="";
if(name!="" && name!=null){
sql="select id,domainid ,item_C字段-接警数 from tlk_f_SocietyTerrain where to_date(to_char(item_reportformstime,'yyyy-MM-dd'),'yyyy-mm-dd')=add_months(trunc(to_date('"+name+"','yyyy-mm-dd')),-1)";
}
sql;