Insert values from array - XSJS

for(var j=0; j<output2.length; j++)

  {

  var pstmt4 = conn.prepareStatement("INSERT INTO STUDENT01.HISTORY VALUES(?,?,?,?)");

  pstmt4.setString(1,date);

  pstmt4.setString(2,time);

  pstmt4.setString(3,output2[j]);  // at this line

  pstmt4.setString(4,output);

  pstmt4.executeQuery();

  }

The above code shows an error while inserting. but works without the loop. Am i missing something?