Question

我知道如果我需要使用Oracle DDL script生成Oracle SQL developer 我必须遵循下一步骤 Oracle - How to generate script from sql developer
SQL Developer - ＆gt;工具 - ＆gt;数据库导出......

但是呢如果我需要写脚本或任何其他技巧
以编程方式运行它因此可以在以后自动安排和生成

Answer 1

但是，如果我需要编写脚本

如果要为用户生成DDL脚本而非手动但通过脚本生成，则使用 DBMS_METADATA 。您可以将以下脚本保存为ddl_script.sql文件，无论何时需要生成脚本，只需在 SQL Developer 中加载该文件，或将其作为脚本运行。输出将是所需的DDL脚本。

例如，以下脚本会为 USER 提供完整的 DDL ：

set long 20000 longchunksize 20000 pagesize 0 linesize 1000 feedback off verify off trimspool on
column ddl format a1000

begin
   dbms_metadata.set_transform_param (dbms_metadata.session_transform, 'SQLTERMINATOR', true);
   dbms_metadata.set_transform_param (dbms_metadata.session_transform, 'PRETTY', true);
end;
/

variable v_username VARCHAR2(30);

exec:v_username := upper('&1');

select dbms_metadata.get_ddl('USER', u.username) AS ddl
from   dba_users u
where  u.username = :v_username
union all
select dbms_metadata.get_granted_ddl('TABLESPACE_QUOTA', tq.username) AS ddl
from   dba_ts_quotas tq
where  tq.username = :v_username
and    rownum = 1
union all
select dbms_metadata.get_granted_ddl('ROLE_GRANT', rp.grantee) AS ddl
from   dba_role_privs rp
where  rp.grantee = :v_username
and    rownum = 1
union all
select dbms_metadata.get_granted_ddl('SYSTEM_GRANT', sp.grantee) AS ddl
from   dba_sys_privs sp
where  sp.grantee = :v_username
and    rownum = 1
union all
select dbms_metadata.get_granted_ddl('OBJECT_GRANT', tp.grantee) AS ddl
from   dba_tab_privs tp
where  tp.grantee = :v_username
and    rownum = 1
union all
select dbms_metadata.get_granted_ddl('DEFAULT_ROLE', rp.grantee) AS ddl
from   dba_role_privs rp
where  rp.grantee = :v_username
and    rp.default_role = 'YES'
and    rownum = 1
union all
select to_clob('/* Start profile creation script in case they are missing') AS ddl
from   dba_users u
where  u.username = :v_username
and    u.profile <> 'DEFAULT'
and    rownum = 1
union all
select dbms_metadata.get_ddl('PROFILE', u.profile) AS ddl
from   dba_users u
where  u.username = :v_username
and    u.profile <> 'DEFAULT'
union all
select to_clob('End profile creation script */') AS ddl
from   dba_users u
where  u.username = :v_username
and    u.profile <> 'DEFAULT'
and    rownum = 1
/

set linesize 80 pagesize 14 feedback on trimspool on verify on

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因此可以在以后自动安排和生成

您可以安排使用 CRON 在操作系统级别生成脚本，或使用 DBMS_SCHEDULER 在数据库级别生成脚本。

Oracle - 如何从SQL Developer程序生成DDL脚本？

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