插入选择JAVA JDBC

Question

How do I insert all records from another table using insert select?

       try {
        PreparedStatement st=dc.getConnection().prepareStatement("INSERT INTO timerecord (empno)  SELECT empno FROM Employeemaster WHERE empstatus = 'Active'" );

        i=st.executeUpdate();
        if (i>0) {
            dc.getConnection().commit();
        }
    } catch (Exception e) {
       JOptionPane.showMessageDialog(this,"Database Error: "+e.getMessage());
       return;
    }

Answer 1

Make sure the syntax error is not related to Java or your formatting by running the statement directly with the database before trying to go further.

Also, one of the advantages of a PreparedStatement is that you can include parameters instead of hard coding things like 'Active'. This will help prevent other syntax errors.