| 摘要 |
Methods and systems are provided for querying a tag database. The tag database is stored in a storage. An XML document including a database query is received. The database query is written in a query language supported by an agent of the tag database. The XML document is parsed to extract the database query from the XML document. The tag database is accessed to perform at least one or a read or write operation on the tag database, based on the database query.
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