How to generate entire DDL of an Oracle schema (scriptable)?

Question

Can anyone tell me how I can generate the DDL for all tables, views, indexes, packages, procedures, functions, triggers, types, sequences, synonyms, grants, etc. inside an Oracle schema? Ideally, I would like to copy the rows too but that is less important.

I want to do this on a scheduled job of some kind and not manually each time, so that rules out using the wizard in SQL Developer.

Ideally, since I will be running this on several schemas that have grants and synonyms to one another, I would like to have a way to do a find/replace in the output so the schema names match whatever the names of my new schemas are going to be.

Thanks!

Answer 1

You can spool the schema out to a file via SQL*Plus and dbms_metadata package. Then replace the schema name with another one via sed. This works for Oracle 10 and higher.

sqlplus<<EOF
set long 100000
set head off
set echo off
set pagesize 0
set verify off
set feedback off
spool schema.out

select dbms_metadata.get_ddl(object_type, object_name, owner)
from
(
    --Convert DBA_OBJECTS.OBJECT_TYPE to DBMS_METADATA object type:
    select
        owner,
        --Java object names may need to be converted with DBMS_JAVA.LONGNAME.
        --That code is not included since many database don't have Java installed.
        object_name,
        decode(object_type,
            'DATABASE LINK',           'DB_LINK',
            'JOB',                     'PROCOBJ',
            'RULE SET',                'PROCOBJ',
            'RULE',                    'PROCOBJ',
            'EVALUATION CONTEXT',      'PROCOBJ',
            'CREDENTIAL',              'PROCOBJ',
            'CHAIN',                   'PROCOBJ',
            'PROGRAM',                 'PROCOBJ',
            'SQL TRANSLATION PROFILE', 'PROCOBJ',
            'REWRITE EQUIVALENCE',     'PROCOBJ',
            'PACKAGE',                 'PACKAGE_SPEC',
            'PACKAGE BODY',            'PACKAGE_BODY',
            'TYPE',                    'TYPE_SPEC',
            'TYPE BODY',               'TYPE_BODY',
            'MATERIALIZED VIEW',       'MATERIALIZED_VIEW',
            'QUEUE',                   'AQ_QUEUE',
            'JAVA CLASS',              'JAVA_CLASS',
            'JAVA TYPE',               'JAVA_TYPE',
            'JAVA SOURCE',             'JAVA_SOURCE',
            'JAVA RESOURCE',           'JAVA_RESOURCE',
            'XML SCHEMA',              'XMLSCHEMA',
            object_type
        ) object_type
    from dba_objects 
    where owner in ('OWNER1')
        --These objects are included with other object types.
        and object_type not in ('INDEX PARTITION','INDEX SUBPARTITION',
           'LOB','LOB PARTITION','TABLE PARTITION','TABLE SUBPARTITION')
        --Ignore system-generated types that support collection processing.
        and not (object_type = 'TYPE' and object_name like 'SYS_PLSQL_%')
        --Exclude nested tables, their DDL is part of their parent table.
        and (owner, object_name) not in (select owner, table_name from dba_nested_tables)
        --Exclude overflow segments, their DDL is part of their parent table.
        and (owner, object_name) not in (select owner, table_name from dba_tables where iot_type = 'IOT_OVERFLOW')
)
order by owner, object_type, object_name;

spool off
quit
EOF

cat schema.out|sed 's/OWNER1/MYOWNER/g'>schema.out.change.sql

Put everything in a script and run it via cron (scheduler). Exporting objects can be tricky when advanced features are used. Don't be surprised if you need to add some more exceptions to the above code.

Answer 2

First export the schema metadata:

expdp dumpfile=filename logfile=logname directory=dir_name schemas=schema_name

and then import by using the sqlfile option (it will not import data it will just write the schema DDL to that file)

impdp dumpfile=filename logfile=logname directory=dir_name sqlfile=ddl.sql

Answer 3

The output of this query is very clean (original here)

clear screen
accept uname prompt 'Enter User Name : '
accept outfile prompt  ' Output filename : '

spool &&outfile..gen

SET LONG 20000 LONGCHUNKSIZE 20000 PAGESIZE 0 LINESIZE 1000 FEEDBACK OFF VERIFY OFF TRIMSPOOL ON

BEGIN
   DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'SQLTERMINATOR', true);
   DBMS_METADATA.set_transform_param (DBMS_METADATA.session_transform, 'PRETTY', true);
END;
/

SELECT dbms_metadata.get_ddl('USER','&&uname') FROM dual;
SELECT DBMS_METADATA.GET_GRANTED_DDL('SYSTEM_GRANT','&&uname') from dual;
SELECT DBMS_METADATA.GET_GRANTED_DDL('ROLE_GRANT','&&uname') from dual;
SELECT DBMS_METADATA.GET_GRANTED_DDL('OBJECT_GRANT','&&uname') from dual;

spool off

Answer 4

If you want to individually generate ddl for each object,

Queries are:

--GENERATE DDL FOR ALL USER OBJECTS

--1. FOR ALL TABLES

SELECT DBMS_METADATA.GET_DDL('TABLE', TABLE_NAME) FROM USER_TABLES;

--2. FOR ALL INDEXES

SELECT DBMS_METADATA.GET_DDL('INDEX', INDEX_NAME) FROM USER_INDEXES WHERE INDEX_TYPE ='NORMAL';

--3. FOR ALL VIEWS

SELECT DBMS_METADATA.GET_DDL('VIEW', VIEW_NAME) FROM USER_VIEWS;

OR

SELECT TEXT FROM USER_VIEWS

--4. FOR ALL MATERILIZED VIEWS

SELECT QUERY FROM USER_MVIEWS

--5. FOR ALL FUNCTION

SELECT DBMS_METADATA.GET_DDL('FUNCTION', OBJECT_NAME) FROM USER_PROCEDURES WHERE OBJECT_TYPE = 'FUNCTION'

===============================================================================================

GET_DDL Function doesnt support for some object_type like LOB,MATERIALIZED VIEW, TABLE PARTITION

SO, Consolidated query for generating DDL will be:

SELECT OBJECT_TYPE, OBJECT_NAME,DBMS_METADATA.GET_DDL(OBJECT_TYPE, OBJECT_NAME, OWNER)
  FROM ALL_OBJECTS 
  WHERE (OWNER = 'XYZ') AND OBJECT_TYPE NOT IN('LOB','MATERIALIZED VIEW', 'TABLE PARTITION') ORDER BY OBJECT_TYPE, OBJECT_NAME;

Answer 5

To generate the DDL script for an entire SCHEMA i.e. a USER, you could use dbms_metadata.get_ddl.

Execute the following script in SQL*Plus created by Tim Hall:

Provide the username when prompted.

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

Answer 6

The get_ddl procedure for a PACKAGE will return both spec AND body, so it will be better to change the query on the all_objects so the package bodies are not returned on the select.

So far I changed the query to this:

SELECT DBMS_METADATA.GET_DDL(REPLACE(object_type, ' ', '_'), object_name, owner)
FROM all_OBJECTS
WHERE (OWNER = 'OWNER1')
and object_type not like '%PARTITION'
and object_type not like '%BODY'
order by object_type, object_name;

Although other changes might be needed depending on the object types you are getting...

Answer 7

There is a problem with objects such as PACKAGE_BODY:

SELECT DBMS_METADATA.get_ddl(object_Type, object_name, owner) FROM ALL_OBJECTS WHERE OWNER = 'WEBSERVICE';


ORA-31600 invalid input value PACKAGE BODY parameter OBJECT_TYPE in function GET_DDL
ORA-06512: на  "SYS.DBMS_METADATA", line 4018
ORA-06512: на  "SYS.DBMS_METADATA", line 5843
ORA-06512: на  line 1
31600. 00000 -  "invalid input value %s for parameter %s in function %s"
*Cause:    A NULL or invalid value was supplied for the parameter.
*Action:   Correct the input value and try the call again.



SELECT DBMS_METADATA.GET_DDL(REPLACE(object_type,' ','_'), object_name, owner)
  FROM all_OBJECTS 
  WHERE (OWNER = 'OWNER1');