ORA-12015: cannot create a fast refresh materialized view from a complex q
Hi,
I'm facing very strange problem. Please help me why this error is coming
I'm creating a simple materialized view, but it is giving below error since this is simple select * from.
CREATE MATERIALIZED VIEW EFMS.MS_TASK
BUILD IMMEDIATE
REFRESH FAST
START WITH SYSDATE
NEXT (SYSDATE + 1/24)
WITH ROWID
AS
SELECT * FROM MS_TASK@efms_link;
SELECT * FROM MS_TASK@efms_link
*
ERROR at line 8:
ORA-12015: cannot create a fast refresh materialized view from a complex query
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CREATE MATERIALIZED VIEW LOG ON MSDBO.MS_TASK
TABLESPACE DBOR_MVLOG
PCTUSED 0
PCTFREE 60
INITRANS 20
MAXTRANS 255
STORAGE (
INITIAL 64K
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
BUFFER_POOL DEFAULT
)
NOCACHE
NOLOGGING
PARALLEL ( DEGREE 2 INSTANCES 1 )
WITH ROWID, PRIMARY KEY
EXCLUDING NEW VALUES;