The simplest of all possible SQL bundles.... * Edit the environment variables in the preferences to the values for your database ("Bundles" -> "Show Bundle Editor...", then select "MySQL prefs" under the "MySQL" bundle). * Then open a file (your "worksheet"), type a SQL query, select it, and do "MySQL execute" (or Ctrl-Cmd-Return). * The query results are written back to the same worksheet. That's basically it. SQL language file stolen from the SQL bundle. Update 2011/1/14: Now with a new clever feature/cheesy hack! If you name your worksheet file something like "worksheet.<database-name>.sql", then queries will automatically go to that database -- so you can keep separate worksheets for different databases.