What is XQuery
What is XQuery? This article will introduce XQuery to you and let you know what XQuery is? What's the use? I hope it helps you.
What is XQuery? What is the use?
XQuery is a query-based functional query language, a functional language that is the same as XML's database SQL; it is designed to be easy to understand and use for querying XML data .
XQuery can be used in XML documents, relational databases or XML databases containing data in XML format;
XQuery is a functional language that can be used to retrieve information stored in XML format and is responsible for extracting data from XML documents. Extract information from (find and extract elements and attributes). [Recommended related video tutorials: XML Tutorial]
XQuery has functions for many operations, including date and time comparisons, mathematical calculations, string operations and Boolean algebra. Let's take a look at what XQuery can be used for.
XQuery can be used for the following things:
1. Extract information to be used in Web services.
2. It is used to retrieve and query XML-based data.
3. Convert XML data to XHTML.
4. Search Web documents to obtain relevant information.
Benefits of using XQuery
1. No matter what type of data is used, XQuery allows us to work in a common model: relationships data, XML or object data.
2. XQuery is most suitable for XML-based databases and object-based databases. Object databases are more flexible and powerful than pure tabular databases.
3. XQuery is ideal for queries that must represent results in XML format, queries for XML stored inside or outside the database, and across relationships and XML sources.
4. XQuery allows the creation of many different types of XML representations of the same data.
5. XQuery allows querying relational sources and XML sources and creating an XML result.
Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.
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