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>
SQL>
SQL> select doc
2 from myTable
3 where extract(doc, '/message/greeting/text()')
4 like '%it may concern%'
5 /
no rows selected
SQL>
SQL> drop table myTable;
Table dropped.
SQL>