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Don Burleson Blog 







Get DDL for Materialized View Script

Oracle Database Tips by Donald BurlesonNovember 5, 2015

Question:  What is the script to get the DDL for a materialized view.  I just want to punch the materialized view syntax from the data dictionary.  Can you use dbms_metadata for extracting the materialized view source code?

Answer:  Yes, dbms_metadata.get_ddl will extract the DDL for materialized views, but it needs formatting.  This script will display the source for any materialized view  See this link for a complete Oracle script download

set serveroutput on
set feedback off
undef v_sql
   v_task_name       varchar2 (100);
   v_mview_owner     varchar2 (30)   := upper ('&&enter_mview_owner');
   v_mview_name      varchar2 (30)   := upper ('&&enter_mview_name');
   v_mview_sql       varchar2 (4000);
   v_mview_log_sql   varchar2 (4000);
   -- get mview text from data dictionary
   select dbms_metadata.get_ddl ('materialized_view', mview_name, owner)
     into v_mview_sql
     from dba_mviews
    where owner = v_mview_owner and mview_name = v_mview_name;
   select dbms_metadata.get_dependent_ddl ('materialized_view_log',
     into v_mview_log_sql
     from dba_dependencies
    where referenced_type = 'TABLE'
      and referenced_name != v_mview_name
      and owner = v_mview_owner
      and name = v_mview_name;
   dbms_output.put_line ('mview sql is: ' || v_mview_sql);
   dbms_output.put_line ('mview log sql is: ' || v_mview_log_sql);
   when others

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