ORACLE 11G 触发器调试记录Error: PLS-00201: identifier'SYS.DBMS_SYSTEM' must be declared

1，触发器内容如下

CREATE OR REPLACE TRIGGER"LOGON_DENIED_TO_ALERT"
AFTER servererror ON DATABASE
DECLARE
message VARCHAR2(168);
ip VARCHAR2(15);
v_os_user VARCHAR2(80);
v_module VARCHAR2(50);
v_action VARCHAR2(50);
v_pid VARCHAR2(10);
v_sid NUMBER;
v_program VARCHAR2(48);
BEGIN
IF(ora_is_servererror(1017)) THEN

-- get ip FOR remote connections :
IF upper(sys_context('userenv', 'network_protocol')) = 'TCP' THEN
ip := sys_context('userenv', 'ip_address');
END IF;

SELECT sid INTO v_sid FROM sys.v_$mystat WHERE rownum < 2;
SELECT p.spid, v.program
INTO v_pid, v_program
FROM v$process p, v$session v
WHERE p.addr = v.paddr
AND v.sid = v_sid;

v_os_user := sys_context('userenv', 'os_user');
dbms_application_info.read_module(v_module, v_action);

message := to_char(SYSDATE, 'YYYYMMDD HH24MISS') ||

' logon denied from ' || nvl(ip,'localhost') || ' ' ||
v_pid || ' ' || v_os_user || 'with ' || v_program || ' – ' ||
v_module || ' ' || v_action;

sys.dbms_system.ksdwrt(2, message);

ENDIF;
END;


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原博客地址： /article/1563893.html
原作者：黄杉 (mchdba)
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2，执行报错信息：

Compilation errors for TRIGGERTIMDBA.LOGON_DENIED_TO_ALERT

Error: PL/SQL: ORA-00942: table or viewdoes not exist
Line: 20
Text: SELECT sid INTO v_sid FROMsys.v_$mystat WHERE rownum < 2;

Error: PL/SQL: SQL Statement ignored
Line: 20
Text: SELECT sid INTO v_sid FROMsys.v_$mystat WHERE rownum < 2;

Error: PL/SQL: ORA-00942: table or viewdoes not exist
Line: 23
Text: FROM v$process p, v$session v

Error: PL/SQL: SQL Statement ignored
Line: 21
Text: SELECT p.spid, v.program

Error: PLS-00201: identifier'SYS.DBMS_SYSTEM' must be declared
Line: 35
Text: sys.dbms_system.ksdwrt(2, message);

Error: PL/SQL: Statement ignored
Line: 35
Text: sys.dbms_system.ksdwrt(2, message);


解决办法
grant execute on sys.dbms_system to timdba;

3，再次执行还在报错：

Compilation errors for TRIGGER TIMDBA.LOGON_DENIED_TO_ALERT

Error: PL/SQL: ORA-00942: table or viewdoes not exist
Line: 20
Text: SELECT sid INTO v_sid FROMsys.v_$mystat WHERE rownum < 2;

Error: PL/SQL: SQL Statement ignored
Line: 20
Text: SELECT sid INTO v_sid FROMsys.v_$mystat WHERE rownum < 2;

Error: PL/SQL: ORA-00942: table or viewdoes not exist
Line: 23
Text: FROM v$process p, v$session v

Error: PL/SQL: SQL Statement ignored
Line: 21
Text: SELECT p.spid, v.program

解决办法：
grant select on sys.v_$mystat to timdba;

4，再次调试报错信息3

Compilation errors for TRIGGERTIMDBA.LOGON_DENIED_TO_ALERT

Error: PL/SQL: ORA-00942: table or viewdoes not exist
Line: 23
Text: FROM v$process p, v$session v

Error: PL/SQL: SQL Statement ignored
Line: 21
Text: SELECT p.spid, v.program

解决办法：
grant select on sys.v_$process to timdba;
grant select on sys.v_$session to timdba;







参考文章地址：https://blogs.oracle.com/mandalika/entry/resolving_pls_00201_identifier_dbms