You can also use for loop to create the buttons

void LessonWindowList( int windowID ) {

    scrollPosition = GUILayout.BeginScrollView( scrollPosition );
    for( int x = 0; x <= yourLimit; x++ ) {
       if( GUILayout.Button( "no: " + x ) ){
       }
    }
    GUILayout.EndScrollView();

[CODE]

//create list of buttons

void LessonWindowList ( int windowID ) {

    scrollPosition = GUILayout.BeginScrollView( scrollPosition );
    if( _GameItems != null ) {
       if( _GameItems.Count > 0 ) {
         foreach( data itm in _GameItems ) {
          if ( GUILayout.Button("Button Label Name) ) {
               //WHATS HAPPEN IF USER CLICKED THE BUTTON
              }
          }
         }
       }
    }
    GUILayout.EndScrollView();
}

[/CODE]

_GameItems contains the list of your data from database.