String fexp="";
fexp=request.getParameter("fexpcujob");

"SELECT * FROM jobreg where
jobreg.expcujob=fexp";

this query is not working. here jobreg is the table name and cxpcujob is the field name.

Hello, Try this for your query: String query = "SELECT * FROM jobreg WHERE jobreg.expcujob=" + fexp;