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How does xmltable work in Oracle 10g Release 2?
Prior to Oracle 10g Release 2, retrieving data from XML typically involved manually parsing the XML DOM tree. Oracle 10g Release 2 introduced the XMLTABLE operator, which allows you to project columns on to XML data in an XMLTYPE, making it possible to query the data directly from SQL as if it were relational data.
Is the xmltype storage model deprecated in Oracle 12c?
“Starting with Oracle Database 12c Release 1 (12.1.0.1), the unstructured (CLOB) storage model for XMLType is deprecated. Use binary XML storage instead.”
Which is better Binary XML or CLOB storage?
While doing poc for storing XML in ClOB storage and Binary XML storage ,I could see storing XML in Binary XML takes less table space as compared to CLOB .As far as I know both store XML in LOB storage.so why there is difference between space taken Binary XML storage is less than XML CLOB storage .
Which is an example of XML based table?
The examples below use the following tables. This example uses tag-based XML, where each data element for an employee is surrounded by its own start and end tag. First we create a table to hold our XML document and populate it with a document containing multiple rows of data. Using XMLFOREST gives us a separate tag for each column in the query.
Where is the XML data stored in SQL?
In some cases, the XML is stored in a PL/SQL variable. The XMLTABLE operator can work with this also.
Where is the ref attribute in Oracle XML?
The REF attribute points to an XMLType instance of SQL object type obj_t1 in table addr_tab. Table addr_tab is stored out of line. It has columns street and city. When registering this XML schema, Oracle XML DB generates the XMLType tables and types shown in Example 9-4. DESCRIBE emp_tab Name Null?
Can you create more than one xmltype table in Oracle?
Starting with Oracle Database 11g Release 2 (11.2.0.2), you can create only one XMLType table that uses an XML schema that results in an out-of-line table. An error is raised if you try to create a second table that uses the same XML schema.