I get "failed to set the refresh attribute COMMIT for the materialized view" when I try to create a MV using a table and another MV
Experts,
I'm trying to create a YOUNG refreshable ON COMMIT MV (xyz) using a table (circuit) and quickly updateable on validation MV (abc), but get an error:
SQL error: ORA-12054: cannot set the attribute ON COMMIT refresh for the materialized view
12054 00000 - "cannot set the refresh attribute COMMIT for the materialized view.
* Cause: The materialized view did not meet the requirements for update to
moment of validation.
* Action: Specify only valid options.
1] MV abc
= MV abc defined as below =.
CREATE MATERIALIZED view abc_MV
Immediate CONSTRUCTION
REFRESH QUICKLY YOU COMMIT using constraints of trust
WITH ROWID AS SELECT n.*,.
n.ROWID noderowid
node n
where n.nodetype in (1610000069,1610007267);
-Above works OK and MV connect you on table node is created successfully
=====================================================
[ 2] Circuit Board
======================================================
CREATE MATERIALIZED VIEW LOG ON Cramer.Circuit WITH SEQUENCE, ROWID ( ) -all columns of table ofcircut parentheses
INCLUDING THE NEW VALUES;
-More top works OK and MV connect you on table circuit is created successfully
======================================================
[3] trying to create MV xyz
======================================================
CREATE MATERIALIZED VIEW LOG ON cramer.abc_MV WITH SEQUENCE, ROWID ( ) -all columns of abc_MV brackets
INCLUDING THE NEW VALUES;
-Above works OK and log on ABC MV MV gets created successfully
-Problematic step below
Xyz_MV CREATE MATERIALIZED VIEW
IMMEDIATE CONSTRUCTION
REFRESH QUICKLY YOU COMMIT using constraints of trust
AS
SELECT c., c.rowid circuit_rowid, n.rowid tr_rowid
the circuit c, abc_mv n
where circuit2startnode = n.nodeid
and c.rpplanId = n.rpplanId;
==========================================================
Clues on how to solve this problem and make quickly updatable ON Commit MV xyz
Thanks in advance.
Chanchal,
If you can read my original post carefully you may have noticed that all these restrictions will not apply in my case.
All,
In any case I found the solution to my problem.
There are a few additional restrictions for materialized views multilayer
Additional Restrictions for master materialized views
The following types of materialized views may not be masters of editable materialized views:
ROWID
materialized views- Complex materialized views
- Read-only materialized views
I've updated the underlying MV abc below and everything worked like a charm
CREATE MATERIALIZED view abc_MV
Immediate CONSTRUCTION
REFRESH QUICKLY YOU COMMIT using constraints of trust
IN SELECT
n.*, n.rowid noderowid, nt.rowid nodetyperowid
the node n, nodetype_m nt
where n.node2nodetype = nt.nodetypeid
and nt.nodetypeid in (1610000069,1610007267);
Note: To ADD a join without which I was getting error below (although had primary key on the table of the node)
SQL error: ORA-23415: materialized view log for "NODE" does not save the primary key
23415 00000 - "view the log for materialized \"%s\".\"%s\"does not save the primary key.
* Cause: A primary key materialized view is refreshed quickly, but the
The materialized view log does not record the primary key information.
* Action: Use CREATING MATERIALIZED VIEW LOG... Command to add a PRIMARY KEY to
start recording of the primary key information in the materialized view
Newspaper.
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