Extracting DDLs from Oracle

1. DBMS_METADATA

This example extracts DDLs of every table and index from scott, run it in sqlplus:

 set pagesize 0    ---Does not display column names.

set long 90000    ---9000 bytes of cache in local machine for LONG datatype

set feedback off  --Does not display messages like "PL/SQL procedure successfully completed"

set echo off         --START command does not list each command in a script. as       --the command is executed.

spool scott_schema.sql --Spool to a file

connect scott/tiger@orcl;   --Connecting as scott

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

SELECT DBMS_METADATA.GET_DDL('INDEX',u.index_name) FROM USER_INDEXES u;

spool off;           --Turn off spool

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