SQL>
SQL> CREATE TABLE myTable(
2 id NUMBER PRIMARY KEY
3 ,doc XMLType NOT NULL
4 )
5 XMLTYPE doc STORE AS CLOB
6 /
Table created.
SQL>
SQL> -- Demo the selfish style of invocation
SQL> select COUNT(*)
2 from myTable x
3 where x.doc.existsnode('/message/greeting') = 1
4 /
COUNT(*)
----------
0
1 row selected.
SQL>
SQL> drop table myTable;
Table dropped.