Bug 361443 Excel ODA
data/org.eclipse.birt.report.data.oda.excel/src/org/eclipse/birt/report/data/oda/excel/impl/ExcelFileQuery.java
}
	/**
	 * Return the String that contains column label(s) selected in a query.
	 * Multiple column labels, if any, are separated by comma.
	 *
	 * @param parsedQueryFragments
	 *            the string array which is generated by the
	 *            parsePreparedQueryText method
	 * @return the comma-separated column labels selected in a query
	 */
	private String getPreparedColumnLabels(String[] parsedQueryFragments) {
		return parsedQueryFragments[1];
	}
	/**
	 * Validate whether the given query segments contains a single table name.
	 *
	 * @param parsedQuerySegments
	 * @throws OdaException
	 *             if the given query contains multiple table names
	 */
	private void validateSingleTableQuery(String[] parsedQuerySegments)
			throws OdaException {
		if (getPreparedTableNames(parsedQuerySegments).split(
				ExcelODAConstants.DELIMITER_COMMA_VALUE).length != 1)
			throw new OdaException(
					Messages.getString("query_DO_NOT_SUPPORT_CROSS_TABLE_QUERY")); 
	}
	/**
	 * Return the String which contains the identifiers in the FROM clause.
	 *