1) Export all the table structures in the database to the file dB. SQL
$> Dbschema-D your_database-t all dB. SQL
2) export all stored procedures in the database to the file dB. SQL
$> Dbschema-D your_database-f all dB. SQL
3) export all objects in the database (including tables, stored procedures, triggers ......) To File dB. SQL
$> Dbschema-D your_database dB. SQL
4) export the structure of a table in the database to the file dB. SQL
$> Dbschema-D your_database_name-T your_table_name dB. SQL
5) export a stored procedure definition to the file dB. SQL
$> Dbschema-D your_database_name-F your_procedure_name dB. SQL
6) If you export more table information (extent ...)
$> Dbschema-D your_database_name-SS dB. SQL
7) export the user or role authorization information in the database
$> Dbschema-D your_database_name-P all
$> Dbschema-D your_database_name-r all
8) Export synonyms in the database
$> Dbschema-D your_database_name-s all