Use Aggregrate functions on XML data : Introduction « XML « Oracle PL/SQL Tutorial






  1. Oracle PL/SQL Tutorial
  2. XML
  3. Introduction
SQL> CREATE TABLE myTable
  2    (myID            NUMBER PRIMARY KEY,
  3     myValue     XMLTYPE )
  4     XMLTYPE myValue STORE AS CLOB
  5  /

Table created.


SQL>
SQL> 
SQL> select count(extract(myValue,'/ROWSET')  )
  2         AS count
  3  from myTable;

     COUNT
----------
         0

1 row selected.

SQL>
SQL>
SQL> drop table myTable;

Table dropped.

SQL>








33.1.Introduction
33.1.1.SQL to XML
33.1.2.Create a table to hold the simple "Hello World" XML document
33.1.3.Create table based on single data type
33.1.4.Create table myTable of xmltype
33.1.5.Use Aggregrate functions on XML data
33.1.6.Use Text() function to get text value from xml string
33.1.7.xmlagg and xmlforest
33.1.8.Without the text() operator, returns node name + text value