scheme2ddl is command line util for export oracle schema to set of ddl scripts. Provide a lot of configurations via basic command line options or advanced XML configuartion.

scheme2ddl is part of oracle-ddl2svn project.

Benefits

scheme2ddl give ability to filter undesirable information, separate DDL in different files, pretty format output.

How to start with minimal configuration

Java must be installed on your computer.

For exporting oracle scheme you must provide

• DB connection string
• output directory

Usage example. Command

java -jar scheme2ddl.jar -url scott/tiger@localhost:1521:ORCL -o C:/temp/oracle-ddl2svn/

will produce directory tree

 views/
       view1.sql
       view2.sql
 tables/
       table1.sql
 functions
      /f1.sql  

More command line options

java -jar scheme2ddl.jar -help
...
    Options: 
      -help, -h                  print this message
      -url,                      DB connection URL
                                 example: scott/tiger@localhost:1521:ORCL
      -o, --output,              output dir
      -p, --parallel,            number of parallel thread (default 4)
      -s, --schemas,             a comma separated list of schemas for processing
                                 (works only if connected to oracle as sysdba)
      -c, --config,              path to scheme2ddl config file (xml)
      -f, --filter,              filter for specific DDL objects
                                 every LIKE wildcard can be used
      -tf, --type-filter,        filter for specific DDL object types
      -tfm, --type-filtermode,   mode for type filter: include(default) or exclude
      --stop-on-warning,         stop on getting DDL error (skip by default)
      -rsv,                      replace actual sequence values with 1 
      --replace-sequence-values, 
      -tc,--test-connection,     test db connection available
      -version,                  print version info and exit

On Unix platform you can run scheme2ddl.jar as executable file:

chmod +x scheme2ddl.jar
./scheme2ddl.jar 

How it is work inside?

1. First, get list of all user_object to export

`select * from user_objects`

2. then applying dbms_metadata.set_transform_param
3. for every user object invoke dbms_metadata.get_ddl and dbms_metadata.get_dependent_ddl
4. print every ddl to separate file grouped in folders like tables, views, procedures etc

scheme2ddl build on top of spring-batch framework.