SELECT TABLE_NAME,
TO_NUMBER(EXTRACTVALUE(XMLTYPE(DBMS_XMLGEN.GETXML('SELECT COUNT(*) CNT FROM '||TABLE_NAME)),'/ROWSET/ROW/CNT')) AS COUNT
FROM USER_TABLES order by COUNT DESC;
SELECT TABLE_NAME,
TO_NUMBER(EXTRACTVALUE(XMLTYPE(DBMS_XMLGEN.GETXML('SELECT COUNT(*) CNT FROM '||TABLE_NAME)),'/ROWSET/ROW/CNT')) AS COUNT
FROM USER_TABLES order by COUNT DESC;