在某些情况下,我们需要获得数据库用户的创建脚本(包含系统权限,对象权限,配额等相关语句),这些东西如果人工去做绝对是体力活,在asktom网站上看到相关脚本,做了测试和验证,确实很好
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-- ###########################################
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create or replace procedure GET_CREATE_USER_DDL
as
cursor get_username is
select username
from dba_users
--where username IN('CHF','XIFENFEI')
;
begin
for l_user in get_username loop
DBMS_OUTPUT.PUT_LINE('-----------------------');
DBMS_OUTPUT.PUT_LINE('select (case');
DBMS_OUTPUT.PUT_LINE(' when ((select count(*)');
DBMS_OUTPUT.PUT_LINE(' from dba_users');
DBMS_OUTPUT.PUT_LINE(' where username = '''||l_user.username||''') > 0)');
DBMS_OUTPUT.PUT_LINE(' then dbms_metadata.get_ddl (''USER'', '''||l_user.username||''')');
DBMS_OUTPUT.PUT_LINE(' else to_clob ('' -- Note: User not found!'')');
DBMS_OUTPUT.PUT_LINE(' end ) "--Extracted_DDL" from dual');
DBMS_OUTPUT.PUT_LINE('UNION ALL');
DBMS_OUTPUT.PUT_LINE('-----------------------');
DBMS_OUTPUT.PUT_LINE('select (case');
DBMS_OUTPUT.PUT_LINE(' when ((select count(*)');
DBMS_OUTPUT.PUT_LINE(' from dba_ts_quotas');
DBMS_OUTPUT.PUT_LINE(' where username = '''||l_user.username||''') > 0)');
DBMS_OUTPUT.PUT_LINE(' then dbms_metadata.get_granted_ddl (''TABLESPACE_QUOTA'',
'''||l_user.username||''')');
DBMS_OUTPUT.PUT_LINE(' else to_clob ('' -- Note: No TS Quotas found!'')');
DBMS_OUTPUT.PUT_LINE(' end ) from dual');
DBMS_OUTPUT.PUT_LINE('UNION ALL');
DBMS_OUTPUT.PUT_LINE('-----------------------');
DBMS_OUTPUT.PUT_LINE('select (case');
DBMS_OUTPUT.PUT_LINE(' when ((select count(*)');
DBMS_OUTPUT.PUT_LINE(' from dba_role_privs');
DBMS_OUTPUT.PUT_LINE(' where grantee = '''||l_user.username||''') > 0)');
DBMS_OUTPUT.PUT_LINE(' then dbms_metadata.get_granted_ddl (''ROLE_GRANT'',
'''||l_user.username||''')');
DBMS_OUTPUT.PUT_LINE(' else to_clob ('' -- Note: No granted roles found!'')');
DBMS_OUTPUT.PUT_LINE(' end ) from dual');
DBMS_OUTPUT.PUT_LINE('UNION ALL');
DBMS_OUTPUT.PUT_LINE('-----------------------');
DBMS_OUTPUT.PUT_LINE('select (case');
DBMS_OUTPUT.PUT_LINE(' when ((select count(*)');
DBMS_OUTPUT.PUT_LINE(' from dba_sys_privs');
DBMS_OUTPUT.PUT_LINE(' where grantee = '''||l_user.username||''') > 0)');
DBMS_OUTPUT.PUT_LINE(' then dbms_metadata.get_granted_ddl (''SYSTEM_GRANT'',
'''||l_user.username||''')');
DBMS_OUTPUT.PUT_LINE(' else to_clob ('' -- Note: No System Privileges found!'')');
DBMS_OUTPUT.PUT_LINE(' end ) from dual');
DBMS_OUTPUT.PUT_LINE('UNION ALL');
DBMS_OUTPUT.PUT_LINE('-----------------------');
DBMS_OUTPUT.PUT_LINE('select (case');
DBMS_OUTPUT.PUT_LINE(' when ((select count(*)');
DBMS_OUTPUT.PUT_LINE(' from dba_tab_privs');
DBMS_OUTPUT.PUT_LINE(' where grantee = '''||l_user.username||''') > 0)');
DBMS_OUTPUT.PUT_LINE(' then dbms_metadata.get_granted_ddl (''OBJECT_GRANT'',
'''||l_user.username||''')');
DBMS_OUTPUT.PUT_LINE(' else to_clob ('' -- Note: No Object Privileges found!'')');
DBMS_OUTPUT.PUT_LINE(' end ) from dual');
DBMS_OUTPUT.PUT_LINE('/');
DBMS_OUTPUT.PUT_LINE('----------------------------------------------------------------------');
end loop;
end;
/
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--###########################################
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The above proc when called with the foll. will give the SQLs for all users:
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-- ###########################################
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set pages 50000
set serveroutput on size unlimited
spool /tmp/exec_GET_CREATE_USER_DDL.sql
exec GET_CREATE_USER_DDL
spool off
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-- ###########################################
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These SQLs generated can in turn be run as follows to get the master-list of all the grants in the database:
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-- ###########################################
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spool /tmp/GET_CREATE_USER_DDL.sql
conn / as sysdba
set long 1000000000
set pages 50000
exec DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'SQLTERMINATOR',TRUE);
@/tmp/exec_GET_CREATE_USER_DDL.sql
spool off
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-- ###########################################
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通过这个脚本,我们可以在游标地方限制我们需要获得脚本的用户,而最终得到的/tmp/GET_CREATE_USER_DDL.sql就是我们需要的创建用户的对应脚本.
如果只需要获得一个用户创建相关脚本,只需要执行如下sql即可
exec DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'SQLTERMINATOR',TRUE);
select (case
when ((select count(*)
from dba_users
where username = '&&Username') > 0)
then dbms_metadata.get_ddl ('USER', '&&Username')
else to_clob (' -- Note: User not found!')
end ) Extracted_DDL from dual
UNION ALL
select (case
when ((select count(*)
from dba_ts_quotas
where username = '&&Username') > 0)
then dbms_metadata.get_granted_ddl( 'TABLESPACE_QUOTA', '&&Username')
else to_clob (' -- Note: No TS Quotas found!')
end ) from dual
UNION ALL
select (case
when ((select count(*)
from dba_role_privs
where grantee = '&&Username') > 0)
then dbms_metadata.get_granted_ddl ('ROLE_GRANT', '&&Username')
else to_clob (' -- Note: No granted Roles found!')
end ) from dual
UNION ALL
select (case
when ((select count(*)
from dba_sys_privs
where grantee = '&&Username') > 0)
then dbms_metadata.get_granted_ddl ('SYSTEM_GRANT', '&&Username')
else to_clob (' -- Note: No System Privileges found!')
end ) from dual
UNION ALL
select (case
when ((select count(*)
from dba_tab_privs
where grantee = '&&Username') > 0)
then dbms_metadata.get_granted_ddl ('OBJECT_GRANT', '&&Username')
else to_clob (' -- Note: No Object Privileges found!')
end ) from dual
/
