Moving all Materialized View and logs at schema level using data pump

Question

Hi Experts,
Please help me on how can I exp/imp all Materialized Views andMV logs (as these are local MVs) only of complete schema to other database. I want to exlude everything else.
Regards
-Samar-

Answer 1

Use DBMS_METADATA. Create the following SQL script:
SET FEEDBACK OFF
SET SERVEROUTPUT ON FORMAT WORD_WRAPPED
SET TERMOUT OFF
SPOOL C:\TEMP\MVIEW.SQL
DECLARE
    CURSOR V_MLOG_CUR
      IS
        SELECT  DBMS_METADATA.GET_DDL('MATERIALIZED_VIEW_LOG',LOG_TABLE) DDL
          FROM  USER_MVIEW_LOGS;
    CURSOR V_MVIEW_CUR
      IS
        SELECT  DBMS_METADATA.GET_DDL('MATERIALIZED_VIEW',MVIEW_NAME) DDL
          FROM  USER_MVIEWS;
BEGIN
    DBMS_METADATA.SET_TRANSFORM_PARAM(DBMS_METADATA.SESSION_TRANSFORM,'SQLTERMINATOR',TRUE);
    FOR V_REC IN V_MLOG_CUR LOOP
      DBMS_OUTPUT.PUT_LINE(V_REC.DDL);
    END LOOP;
    FOR V_REC IN V_MVIEW_CUR LOOP
      DBMS_OUTPUT.PUT_LINE(V_REC.DDL);
    END LOOP;
END;
SPOOL OFFIn my case script is saved as C:\TEMP\MVIEW_GEN.SQL. Now I'll create a mview log and mview in SCOTT schema and run the above script:
SQL> CREATE MATERIALIZED VIEW LOG ON EMP
  2  /
Materialized view log created.
SQL> CREATE MATERIALIZED VIEW EMP_MV
  2  AS SELECT * FROM EMP
  3  /
Materialized view created.
SQL> @C:\TEMP\MVIEW_GEN
SQL> Running script C:\TEMP\MVIEW_GEN.SQL generated a spool file C:\TEMP\MVIEW.SQL:
  CREATE MATERIALIZED VIEW LOG ON "SCOTT"."EMP"
PCTFREE 10 PCTUSED 30 INITRANS
1 MAXTRANS 255 LOGGING
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1       
MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL
DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "USERS"
WITH PRIMARY KEY EXCLUDING NEW VALUES;
  CREATE MATERIALIZED VIEW "SCOTT"."EMP_MV" ("EMPNO", "ENAME", "JOB", "MGR",  
"HIREDATE", "SAL", "COMM", "DEPTNO")
  ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 
INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 65536 NEXT 1048576
MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE 
"USERS"
  BUILD IMMEDIATE
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE    
DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "USERS"
  REFRESH FORCE ON     
DEMAND
  WITH PRIMARY KEY USING DEFAULT LOCAL ROLLBACK SEGMENT
  USING ENFORCED
CONSTRAINTS DISABLE QUERY REWRITE
  AS SELECT "EMP"."EMPNO"                    
"EMPNO","EMP"."ENAME" "ENAME","EMP"."JOB" "JOB","EMP"."MGR"                    
"MGR","EMP"."HIREDATE" "HIREDATE","EMP"."SAL" "SAL","EMP"."COMM"               
"COMM","EMP"."DEPTNO" "DEPTNO" FROM "EMP" "EMP";
                               Now you can run this on other database. You might need to adjust tablespace and storage clauses. Or you can add more DBMS_METADATA.SET_TRANSFORM_PARAM calls to C:\TEMP\MVIEW_GEN.SQL to force DBMS_METADATA not to include tablespace or/and storage clauses.
SY.