ORA-00054:资源正忙，要求指定NOWAIT

--ORA-00054:资源正忙，要求指定NOWAIT--
--以DBA角色, 查看当前数据库里锁的情况可以用如下SQL语句--
SELECT sid, serial#, username, osuser FROM v$session WHERE sid IN(SELECT session_id FROM v$locked_object);

--杀掉锁--
ALTER SYSTEM KILL SESSION 'sid,serial#';

ALTER SYSTEM KILL SESSION '151,48674';

--生成序号的函数--
CREATE OR REPLACE FUNCTION BDLLY.fn_Reg_ywdjh(fn_rq date)
RETURN varchar2 IS
v_char varchar2(200);
v_max  varchar2(100);

BEGIN
--查询出最大的业务登记号--
SELECT max(ywdjh) INTO v_max FROM bdlly_2v.qtywb@"BDLLY2V_LINK.REGRESS.RDBMS.DEV.US.ORACLE.COM" WHERE TO_CHAR(rq,'YYYY-MM-DD')=TO_CHAR(fn_rq,'YYYY-MM-DD');
IF v_max IS NULL
THEN
v_char := to_char(fn_rq,'yyyymmdd')||'0001';
ELSE
v_char := to_char((to_number(v_max) + 1));
END IF;
commit;
RETURN v_char;

END fn_Reg_ywdjh;
/

--调用--

SELECT BDLLY.fn_Reg_ywdjh(RQ) FROM BDLLY_2V.QTYWB;