myadmin_big_sql.user.js

// ==UserScript==
// @name           phpMyAdmin: Bigger SQL box
// @namespace      http://jk3.us/gmns
// @description    Enlarge SQL Boxes in phpMyAdmin
// @include        http://svn2.cure4kids.net/padmin/*
// @include        https://svn2.cure4kids.net/padmin/*
// @include        https://www.cure4kids.org/padmin/*
// @exclude        */querywindow.php*
// ==/UserScript==

(function() {
  var input = document.getElementById("sqlquery");
  if (input) input.style.height = '500px';
})();