private void buildSQL() {
JDBQuery.closeStatement(listStatement);
JDBQuery query = new JDBQuery(Common.selectedHostID, Common.sessionID);
query.clear();
query.addText(JUtility.substSchemaName(schemaName, "select * from {schema}APP_MATERIAL_BATCH"));
query.addParamtoSQL("material=", jTextFieldMaterial.getText());
query.addParamtoSQL("batch_number=", jTextFieldBatch.getText());
query.addParamtoSQL("status=", jComboBoxStatus.getSelectedItem().toString());