diff --git a/app/src/main/java/jrunner/jrunner.java b/app/src/main/java/jrunner/jrunner.java
index 20f6e8f..d216ad0 100644
--- a/app/src/main/java/jrunner/jrunner.java
+++ b/app/src/main/java/jrunner/jrunner.java
@@ -161,6 +161,7 @@ public class jrunner {
         //----------------------------------------open resultset------------------------------------------------------------
         try {
             stmt = scon.createStatement();
+            stmt.setFetchSize(10000);
             rs = stmt.executeQuery(sq); 
             //while (rs.next()) {
             //   System.out.println(rs.getString("x"));
@@ -201,29 +202,32 @@ public class jrunner {
                 for (int i = 1; i <= cols; i++){
                     switch (dtn[i]){
                         case "VARCHAR":
-                            nc = rs.getString(i).replace("'","''");
+                            nc = rs.getString(i);
                             if (rs.wasNull() || nc == null) {
                                 nc = "NULL";
                                 break;
                             }
+                            nc.replace("'","''");
                             if (trim) { nc = nc.trim();}
                             nc = "'" + nc + "'";
                             break;
                         case "CLOB":
-                            nc = rs.getString(i).replace("'","''");
+                            nc = rs.getString(i);
                             if (rs.wasNull() || nc == null) {
                                 nc = "NULL";
                                 break;
                             }
+                            nc.replace("'","''");
                             if (trim) { nc = nc.trim();}
                             nc = "'" + nc + "'";
                             break;
                         case "CHAR":
-                            nc = rs.getString(i).replace("'","''");
+                            nc = rs.getString(i);
                             if (rs.wasNull() || nc == null) {
                                 nc = "NULL";
                                 break;
                             }
+                            nc.replace("'","''");
                             if (trim) { nc = nc.trim();}
                             nc = "'" + nc + "'";
                             break;
@@ -239,19 +243,21 @@ public class jrunner {
                             }
                             break;
                         case "TIME":
-                            nc = rs.getString(i).replace("'","''");
+                            nc = rs.getString(i);
                             if (rs.wasNull() || nc == null) {
                                 nc = "NULL";
                                 break;
                             }
+                            nc.replace("'","''");
                             nc = "'" + nc + "'";
                             break;
                         case "TIMESTAMP":
-                            nc = rs.getString(i).replace("'","''");
+                            nc = rs.getString(i);
                             if (rs.wasNull() || nc == null) {
                                 nc = "NULL";
                                 break;
                             }
+                            nc.replace("'","''");
                             nc = "'" + nc + "'";
                             break;
                         case "BIGINT":