exec dbms_....
SQL> exec dbms_stats.gather_table_stats('CLARK','TT');
PL/SQL 过程已成功完成。
或者有些直接使用select
SQL> select dbms_random.value() randomval from dual
2 ;
RANDOMVAL
----------
.265415762
SQL> select dbms_random.string('a',10) randomstr from dual;
RANDOMSTR
--------------------------------------------------------------------------------
MklhdTxYgf