Bug 153387 Database item can't be dragged and dropped onto editor field
Steps to reproduce: 1.Start up BIRT in Mac OS X; 2.File->New->Project; 3.File->New->Report Design; 4.In Data Explorer, create a New Data Source, and choose "Classic Models Inc. Sample DataBase", press "Next" and then press "finish"; 5.In Data Explorer, create a New Data Set, press "Next"; 6.In the popup window, expand the "CLASSICMODELS", select and drag a item onto the editor field at right side.
data/org.eclipse.birt.report.data.oda.jdbc.ui/src/org/eclipse/birt/report/data/oda/jdbc/ui/editors/SQLDataSetEditorPage.java
String[] tableType = null;
		cachedSearchTxt = searchTxt.getText( );
		namePattern = SQLUtility.getTailoredSearchText( searchTxt.getText( ) );
		String dbtype = getSelectedDbType( );
		cachedDbType = dbtype;
		
		if ( dbtype != null )
		{
			if ( DbType.TABLE_STRING.equalsIgnoreCase( dbtype )
					|| DbType.VIEW_STRING.equalsIgnoreCase( dbtype ) )
			{
				tableType = new String[]{
					dbtype
				};
			}
		}
		if ( metaDataProvider.isProcedureSupported( ) )
			procedureRs = metaDataProvider.getAllProcedure( catalogName,
					null,
					namePattern );
		if ( !DbType.PROCEDURE_STRING.equalsIgnoreCase( dbtype ) )
			tablesRs = metaDataProvider.getAlltables( catalogName,
					null,
					namePattern,
					tableType );
		if ( tablesRs == null && procedureRs == null )
		{
			return;
		}
		try