转自 :http://blog.csdn.net/jaune161/article/details/47300697
create or replace trigger tr_ddl
before ddl on database
declare
l_errmsg varchar2(100) := '请按照公司流程进行申请';
begin
if (Ora_dict_obj_type = 'TABLE' or Ora_dict_obj_type = 'INDEX' or
Ora_dict_obj_type = 'PROCEDURE' or Ora_dict_obj_type = 'TRIGGER') AND
ora_login_user not in ('SYS', 'SYSTEM') and
(Ora_sysevent = 'ALTER' OR Ora_sysevent = 'DROP' OR
Ora_sysevent = 'CREATE') then
raise_application_error(-20001,
ora_dict_obj_owner || '.' || ora_dict_obj_name || ' ' ||
l_errmsg);
end if;
exception
when no_data_found then
null;
end;
#需要使用sys用户授权
CREATE USER DBADMIN IDENTIFIED BY DBADMIN;
GRANT CONNECT TO DBADMIN;
GRANT DBA TO DBADMIN;
GRANT SYS.V_$OPEN_CURSOR TO DBADMIN;
DROP SEQUENCE SEQ_DDL_VERSION;
CREATE SEQUENCE SEQ_DDL_VERSION INCREMENT BY 1 START WITH 1 NOMAXVALUE NOMINVALUE NOCYCLE NOCACHE;
DROP TABLE TB_SYSTEM_DDL_LOGS CASCADE CONSTRAINTS;
/*==============================================================*/
/* TABLE: TB_SYSTEM_DDL_LOGS */
/*==============================================================*/
CREATE TABLE TB_SYSTEM_DDL_LOGS
(
EVENT_ID VARCHAR2(32) DEFAULT SYS_GUID() NOT NULL,
EVENT_NAME VARCHAR2(20),
TERMINAL VARCHAR2(50),
DB_NAME VARCHAR2(50),
OBJECT_NAME VARCHAR2(30),
OBJECT_NAME_LIST VARCHAR(300),
OBJECT_OWNER VARCHAR2(30),
OBJECT_TYPE VARCHAR2(20),
IS_ALTER_COLUMN VARCHAR(10),
IS_DROP_COLUMN VARCHAR(10),
SQL_ID VARCHAR(13),
SQL_TEXT CLOB,
CURRENT_USER VARCHAR(30),
CURRENT_USERID NUMBER,
SESSION_USER VARCHAR(10),
SESSION_USERID NUMBER,
PROXY_USER VARCHAR(30),
PROXY_USERID NUMBER,
CURRENT_SCHEMA VARCHAR(30),
HOST VARCHAR(100),
OS_USER VARCHAR(60),
IP_ADDRESS VARCHAR(32),
DDL_TIME DATE DEFAULT SYSDATE,
SESSION_ID VARCHAR(32),
VERSION_NO NUMBER,
CONSTRAINT PK_TB_SYSTEM_DDL_LOGS PRIMARY KEY (EVENT_ID)
);
COMMENT ON TABLE TB_SYSTEM_DDL_LOGS IS '【数据库日志】DDL日志表';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.EVENT_ID IS '事件ID自动生成';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.EVENT_NAME IS '事件名称';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.TERMINAL IS '客户端操作系统终端的名称';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.DB_NAME IS '数据库名称';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.OBJECT_NAME IS 'DDL发生的对象名称';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.OBJECT_NAME_LIST IS '对象列表';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.OBJECT_OWNER IS
'DDL发生对象的宿主';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.OBJECT_TYPE IS
'对象类别';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.IS_ALTER_COLUMN IS
'当列被修改的时候为真,否则为假 ';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.IS_DROP_COLUMN IS
'当列被DROP的时候为真,否则为假 ';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.SQL_ID IS
'SQL_ID';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.SQL_TEXT IS
'SQL语句';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.CURRENT_USER IS
'当前SESSION拥有权限的用户的名称(比如说当前SESSION是SYS,但是正在执行system.myproc,那么current_user就是system)';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.CURRENT_USERID IS
'当前SESSION拥有的权限的用户的ID';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.SESSION_USER IS
'session所属的用户名';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.SESSION_USERID IS
'当前SESSION所属的用户id';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.PROXY_USER IS
'打开当前SESSION的用户的名称';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.PROXY_USERID IS
'打开当前SESSION的用户的ID';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.CURRENT_SCHEMA IS
'当前SESSION缺省的SCHEMA名称,可以用SESSION SET CURRENT_SCHEMA语句修改';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.HOST IS
'客户端的主机名称';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.OS_USER IS
'客户端的操作系统用户名';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.IP_ADDRESS IS
'客户端的IP地址';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.DDL_TIME IS
'修改时间';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.SESSION_ID IS
'SESSION_ID';
COMMENT ON COLUMN TB_SYSTEM_DDL_LOGS.VERSION_NO IS
'版本号';
序列的作用主要是为了标识DDL操作版本,采用的是一种类似与SVN版本控制的方式,每发生一次变化版本号就加一
表是用来存储变更记录的
CREATE OR REPLACE TRIGGER TRIG_MONITOR_SYSTEM_DDL AFTER DDL ON DATABASE /** * 创建时间:2014年7月1日09:49:02 * 描述:监控DDL操作并将DDL操作及DDL语句记录到日志表中 */ DECLARE PRAGMA AUTONOMOUS_TRANSACTION; TR_EVENT_ID VARCHAR2(32); TR_TERMINAL VARCHAR2(50); TR_IPADDR VARCHAR2(30); TR_CUR_USER VARCHAR2(30); TR_CUR_USERID NUMBER; TR_SE_USER VARCHAR2(30); TR_SE_USERID NUMBER; TR_PROXY_USER VARCHAR2(30); TR_PROXY_USERID NUMBER; TR_CUR_SC VARCHAR2(30); TR_HOST VARCHAR2(100); TR_OS_USER VARCHAR2(60); TR_SESSIONID VARCHAR2(32); TR_SQL_ID VARCHAR2(13); TR_SQL VARCHAR2(60); TR_VERSION_NO NUMBER; TR_N NUMBER; TR_STMT CLOB := NULL; TR_SQL_TEXT ORA_NAME_LIST_T; BEGIN TR_EVENT_ID := SYS_GUID(); --获取用户信息 SELECT NVL(SYS_CONTEXT('USERENV','TERMINAL'),''),--客户端操作系统终端的名称 NVL(SYS_CONTEXT('USERENV','IP_ADDRESS'),''),--客户端操作系统终端的名称 NVL(SYS_CONTEXT('USERENV','CURRENT_USER'),''),--当前SESSION拥有权限的用户的名称(比如说当前SESSION是SYS,但是正在执行SYSTEM.MYPROC,那么CURRENT_USER就是SYSTEM) NVL(SYS_CONTEXT('USERENV','CURRENT_USERID'),''),--当前SESSION拥有的权限的用户的ID NVL(SYS_CONTEXT('USERENV','SESSION_USER'),''),--SESSION所属的用户名 NVL(SYS_CONTEXT('USERENV','SESSION_USERID'),''),--当前SESSION所属的用户ID NVL(SYS_CONTEXT('USERENV','PROXY_USER'),''),--打开当前SESSION的用户的名称 NVL(SYS_CONTEXT('USERENV','PROXY_USERID'),''),--打开当前SESSION的用户的ID NVL(SYS_CONTEXT('USERENV','CURRENT_SCHEMA'),''),--当前SESSION缺省的SCHEMA名称 NVL(SYS_CONTEXT('USERENV','HOST'),''),--客户端的主机名称 NVL(SYS_CONTEXT('USERENV','OS_USER'),''),--客户端的操作系统用户名 NVL(SYS_CONTEXT('USERENV','SESSIONID'),'')--SESSION的ID INTO TR_TERMINAL,TR_IPADDR,TR_CUR_USER,TR_CUR_USERID,TR_SE_USER,TR_SE_USERID,TR_PROXY_USER,TR_PROXY_USERID, TR_CUR_SC,TR_HOST,TR_OS_USER,TR_SESSIONID FROM DUAL; --获取DDL SQL语句,如果语句过长无法全部获得,可以根据SQL_ID查询 BEGIN SELECT SQL_TEXT,SQL_ID INTO TR_SQL,TR_SQL_ID FROM V$OPEN_CURSOR WHERE UPPER(SQL_TEXT) LIKE 'ALTER%' OR UPPER(SQL_TEXT) LIKE 'CREATE%' OR UPPER(SQL_TEXT) LIKE 'DROP%'; TR_N := ORA_SQL_TXT(TR_SQL_TEXT); FOR I IN 1 .. TR_N LOOP TR_STMT := TR_STMT || TR_SQL_TEXT(I); END LOOP; EXCEPTION WHEN OTHERS THEN TR_SQL_ID := NULL; TR_STMT := NULL; END;
--向TB_SYSTEM_DDL_LOGS日志表中插入DDL操作记录 IF ORA_SYSEVENT <> 'TRUNCATE' AND ORA_DICT_OBJ_NAME NOT LIKE 'SYS_C%' THEN SELECT SEQ_DDL_VERSION.NEXTVAL INTO TR_VERSION_NO FROM DUAL; INSERT INTO TB_SYSTEM_DDL_LOGS (EVENT_ID,EVENT_NAME,TERMINAL,DB_NAME,OBJECT_NAME,OBJECT_OWNER,OBJECT_TYPE, IS_ALTER_COLUMN,IS_DROP_COLUMN,SQL_ID,SQL_TEXT,SESSION_ID, CURRENT_USER,CURRENT_USERID,SESSION_USER,SESSION_USERID, PROXY_USER,PROXY_USERID,CURRENT_SCHEMA,HOST,OS_USER,IP_ADDRESS,VERSION_NO) VALUES (TR_EVENT_ID,ORA_SYSEVENT,TR_TERMINAL,ORA_DATABASE_NAME,ORA_DICT_OBJ_NAME,ORA_DICT_OBJ_OWNER,ORA_DICT_OBJ_TYPE, NULL,NULL,TR_SQL_ID,TR_STMT,TR_SESSIONID, TR_CUR_USER,TR_CUR_USERID,TR_SE_USER,TR_SE_USERID, TR_PROXY_USER,TR_PROXY_USERID,TR_CUR_SC,TR_HOST,TR_OS_USER,TR_IPADDR,TR_VERSION_NO ); COMMIT; END IF; END;