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 dbtype = getSelectedDbType( );
		cachedDbType = dbtype;
		if ( dbtype != null )
		{
			if ( DbType.TABLE_STRING.equalsIgnoreCase( dbtype )
					|| DbType.VIEW_STRING.equalsIgnoreCase( dbtype ) )
			{
				tableType = new String[]{
					dbtype
				};
			}
		}
	    String catalogName = metaDataProvider.getCatalog();
		ArrayList tableList = new ArrayList();
	
		ResultSet tablesRs = null;
		ArrayList procedureRs = null;
		if (schemaName != null && schemaName.trim().length() > 0)
		{
			
			
			{
				if( metaDataProvider.isProcedureSupported() )
					procedureRs = metaDataProvider.getAllProcedure( catalogName, schemaName, namePattern );
				if( !DbType.PROCEDURE_STRING.equalsIgnoreCase(dbtype))
					tablesRs = metaDataProvider.getAlltables(catalogName,schemaName,namePattern,tableType);	
				tableList = new ArrayList();
				try
				{