监控表函数的问题

db2 update monitor switches using locks on

select * from table(sysproc.snapshot_lock('sample',-1));

SQL0440N  No authorized routine named "SNAPSHOT_LOCK" of type "FUNCTION"

having compatible arguments was found.  SQLSTATE=42884

9.5和9.1都存在这个问题，请大神帮忙看看什么问题