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An imperative application of XML is the exchange of electronic information among numerous data resources on the net. XML data always propagate on the net and applications need to add and cumulative data from different resource. It also clean and alter the data to aid exchange. This presentation is about querying language for XML known as XML-QL. This argument is suitable for performing the above jobs. As XML-QL is declarative and relational comprehensive query language of coding and is quite easy that it can be optimized and time. This

An important application of XML is the interchange of electronic data (EDI) between multiple data sources on the Web. As XML data proliferates on the Web, applications will need to integrate and aggregate data from multiple source and clean and transform data to facilitate exchange. Data extraction, conversion, transformation, and integration are all well-understood database problems, and their solutions rely on a query language. We present a query language for XML, called XML-QL, which we argue is suitable for performing the above tasks. XML-QL is a