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$session v
WHERE p.addr = v.paddr
AND v.sid = v_sid;
v_os_user := sys_context('userenv', 'os_user');
dbms_application_info.read_module(v_module, v_action);
message := to_char(SYSDATE, 'YYYYMMDD HH24MISS') ||
' logon denied from ' || nvl(ip,'localhost') || ' ' ||
v_pid || ' ' || v_os_user || 'with ' || v_program || ' – ' ||
v_module || ' ' || v_action;
sys.dbms_system.ksdwrt(2, message);
ENDIF;
END;
2，执行报错信息：
Compilation errors for TRIGGERTIMDBA.LOGON_DENIED_TO_ALERT
Error: PL/SQL: ORA-00942: table or viewdoes not exist
Line: 20
Text: SELECT sid INTO v_sid FROMsys.v_$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;
：