Count(*) and existsnode() : existsNode « XML « Oracle PL/SQL Tutorial






  1. Oracle PL/SQL Tutorial
  2. XML
  3. existsNode
SQL> CREATE TABLE myTable
  2  (id  NUMBER PRIMARY KEY
  3  ,doc XMLType NOT NULL)
  4  XMLTYPE doc STORE AS CLOB
  5  /

Table created.

SQL>
SQL> select COUNT(*) from myTable
  2  where existsnode(doc, '/message/greeting') = 1
  3  /

  COUNT(*)
----------
         0

1 row selected.

SQL> drop table myTable;

Table dropped.








33.6.existsNode
33.6.1.Call existsNode() function from xmltype data
33.6.2.Count(*) and existsnode()
33.6.3.Find rows that contain the ROWSET/ROW node
33.6.4.Oracle XML function ExistsNode.
33.6.5.existsnode and where clause
33.6.6.existsnode(myValue, '/ROWSET')