oracle用户被锁-解锁SQL

错误：
ORA-28000: the account is locked

解决：
(1) 在oracle用户下执行：sqlplus /nolog
SQL> connect as sysdba;
Connected.
SQL> alter user ah_hs_sst account unlock;
User altered.
SQL> commit;
Commit complete.

或者使用（未尝试过）：
(2) 修改参数failed_login_attempts=unlimited
SQL> alter profile default limit failed_login_attempts unlimited;