ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view. The privileges required to alter a materialized view should be granted directly, as follows: The materialized view must be in your own schema, or you must have the ALTER ANY MATERIALIZED VIEW system privilege. ALTER MATERIALIZED VIEW [ IF EXISTS ] name action [, ... ] ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME [ COLUMN ] column_name TO new_column_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME TO new_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name SET SCHEMA new_schema ALTER MATERIALIZED VIEW ALL IN TABLESPACE name [ OWNED BY role_name For complete information on this clause, please refer to parallel_clause in the documentation on CREATE TABLE. Purpose. Renames the specified column to a new name that is not currently used for any other columns in the table. The system does not allow an insert, update, or delete on a view. If you see anything in the documentation that is not correct, does not match You must own the materialized view to use ALTER MATERIALIZED VIEW. Description. Restrictions on FAST Refresh FAST refresh is subject to the following restrictions: When you specify FAST refresh at create time, Oracle Database verifies that the materialized view you are creating is eligible for fast refresh. The name (optionally schema-qualified) of an existing materialized view. For data that will be accessed frequently, CACHE specifies that the blocks retrieved for this table are placed at the most recently used end of the LRU list in the buffer cache when a full table scan is performed. This clause is supported for backward compatibility with replication environments containing older versions of Oracle Database that still use rollback segments. You can enable query rewrite only if all user-defined functions in the materialized view are DETERMINISTIC. CONSIDER FRESH: Example The following statement instructs Oracle Database that materialized view sales_by_month_by_state should be considered fresh. Please refer to the logging_clause for a full description of this clause. ALTER TABLE. If you specify a START WITH value but omit the NEXT value, Oracle Database refreshes the materialized view only once. ALTER MATERIALIZED VIEW [ IF EXISTS ] name action [, ... . ] The statement subforms and actions available for ALTER MATERIALIZED VIEW are a subset of those available for ALTER TABLE, and have the same meaning when used for materialized views. Use the MODIFY scoped_table_ref_constraint clause to rescope a REF column or attribute to a new table or to an alias for a new column. RENAME TO new_name. Restriction on the USING INDEX clause You cannot specify the PCTUSED or PCTFREE parameters in this clause. Synopsis ALTER MATERIALIZED VIEW [ IF EXISTS ] name action [, ... ] ALTER MATERIALIZED VIEW name DEPENDS ON EXTENSION extension_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME [ COLUMN ] column_name TO new_column_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME TO new_name ALTER MATERIALIZED VIEW … For both conventional DML changes and for direct-path INSERT operations, other conditions may restrict the eligibility of a materialized view for fast refresh. Use the alter_mv_refresh clause to change the default method and mode and the default times for automatic refreshes. Collectively these source objects are called master tables (a replication term) or detail tables (a data warehousing term). Use this clause to change the value of INITRANS and STORAGE parameters for the index Oracle Database uses to maintain the materialized view data. NAME ALTER_MATERIALIZED_VIEW - change the definition of a materialized view SYNOPSIS. If you alter a table that is a master table for one or more materialized views, then Oracle Database marks the materialized views INVALID. ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view. This award recognizes someone who has achieved high tech and professional accomplishments as an expert in a specific topic. This reference uses the term master tables for consistency. Identifiers enclosed in double quotes are also case-sensitive. To create a view with an external table, include the WITH NO SCHEMA BINDING clause. If the contents of the master tables of a materialized view are modified, then the data in the materialized view must be updated to make the materialized view accurately reflect the data currently in its master table(s). Please refer to "CACHE | NOCACHE | CACHE READS" in the documentation on CREATE TABLE for more information about this clause. This clause lets you schedule the times and specify the method and mode for Oracle Database to refresh the materialized view. Primary key materialized views allow materialized view master tables to be reorganized without affecting the ability of the materialized view to continue to fast refresh. Use the alter_iot_clauses to change the characteristics of an index-organized materialized view. >> ORA-32318: cannot rename a materialized view mrjoltcola. If the contents of the master tables of a materialized view are modified, the data in the materialized view must be updated to make the materialized view accurately reflect the data currently in its master table(s). Use the ALTER VIEWS ON command to refresh or suspend all the materialized views for a base table. Collectively these source objects are called master tables (a replication term) or detail tables (a data warehousing term). Renaming columns in views, materialized query tables (MQTs), declared and created temporary tables, and other table-like objects is not supported. This clause is not valid if your database is in automatic undo mode, because in that mode Oracle Database uses undo tablespaces instead of rollback segments. This statement allows sales_by_month_by_state to be eligible for query rewrite in TRUSTED mode even after you have performed partition maintenance operations on the master tables of sales_by_month_by_state: Complete Refresh: Example The following statement specifies a new refresh method, a new NEXT refresh time, and a new interval between automatic refreshes of the emp_data materialized view (created in "Periodic Refresh of Materialized Views: Example"): The START WITH value establishes the next automatic refresh for the materialized view to be 9:00 a.m. tomorrow. Because the REFRESH clause does not explicitly specify a refresh method, Oracle Database continues to use the refresh method specified by the REFRESH clause of the CREATE MATERIALIZED VIEW or most recent ALTER MATERIALIZED VIEW statement. ... You cannot rename a static column, since you cannot use a static column in the table's primary key. For complete information on this clause, please refer to CREATE MATERIALIZED VIEW ... "USING ROLLBACK SEGMENT Clause". This clause directs Oracle Database to assume that the materialized view is fresh and that no such changes have been made. Cleanup drop materialized view mv ; drop materialized view log on t2 ; < At the time of the next automatic refresh, Oracle Database refreshes the materialized view, evaluates the NEXT expression SYSDATE+7 to determine the next automatic refresh time, and continues to refresh the materialized view automatically once a week. Specify FORCE if, when a refresh occurs, you want Oracle Database to perform a fast refresh if one is possible or a complete refresh otherwise. Oracle Database Advanced Replication for restrictions on fast refresh in replication environments, Oracle Data Warehousing Guide for restrictions on fast refresh in data warehouse environments. This clause has the same semantics in CREATE MATERIALIZED VIEW and ALTER MATERIALIZED VIEW statements. ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.. You must own the materialized view to use ALTER MATERIALIZED VIEW.To change a materialized view's schema, you must also have CREATE privilege on the new schema. If the materialized view is not eligible for fast refresh, Oracle Database returns an error when you attempt to refresh this view. This example requires that you have already defined a materialized view log with a primary key on order_data. Description. Restrictions on Altering Index-Organized Materialized Views You cannot specify the mapping_table_clause or the key_compression clause of the index_org_table_clause. MODIFY PARTITION REBUILD UNUSABLE LOCAL INDEXES Use this clause to rebuild the unusable local index partitions associated with partition. Changes password, and set superuser or login options. CONSTRAINTS Clause" in the documentation on CREATE MATERIALIZED VIEW. Specify the name of the materialized view to be altered. For you to specify this clause, the master table must contain an enabled primary key constraint and must have defined on it a materialized view log that logs primary key information. The syntax and general functioning of the partitioning clauses for materialized views is the same as for partitioned tables. Use the table_compression clause to instruct Oracle Database whether to compress data segments to reduce disk and memory use. Views are read-only. Cannot rename or drop columns that have dependent secondary indexes or Datastax Enterprise Search indexes. The keywords and parameters of the components of the alter_iot_clauses have the same semantics as in ALTER TABLE, with the restrictions that follow. Please refer to the LOB_storage_clause (in CREATE TABLE) for information on the LOB storage parameters. The following statement establishes a new interval between automatic refreshes for the sales_by_month_by_state materialized view: Because the REFRESH clause does not specify a START WITH value, the next automatic refresh occurs at the time established by the START WITH and NEXT values specified when the sales_by_month_by_state materialized view was created or last altered. ORA-32318: cannot rename a materialized view Cause: Renaming a materialized view or its base table is not supported. PostgreSQL v12.5: PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale the most complicated data workloads. Description. The databases containing the master tables are called the master databases. Use the ALTER VIEW command to change the name or the owner of a view or to refresh or suspend a materialized view. Specify FAST for the incremental refresh method, which performs the refresh according to the changes that have occurred to the master tables. Restriction on Altering Materialized View Partitions, MODIFY PARTITION REBUILD UNUSABLE LOCAL INDEXES, Restrictions on Altering Index-Organized Materialized Views, Restrictions on Enabling Materialized Views, Description of the illustration alter_materialized_view.gif, Description of the illustration physical_attributes_clause.gif, Description of the illustration table_compression.gif, Description of the illustration LOB_storage_clause.gif, Description of the illustration LOB_parameters.gif, Description of the illustration modify_LOB_storage_clause.gif, Description of the illustration modify_LOB_parameters.gif, Description of the illustration parallel_clause.gif, Description of the illustration logging_clause.gif, Description of the illustration allocate_extent_clause.gif, Description of the illustration deallocate_unused_clause.gif, Description of the illustration shrink_clause.gif, Description of the illustration alter_iot_clauses.gif, Description of the illustration index_org_table_clause.gif, Description of the illustration index_org_overflow_clause.gif, Description of the illustration alter_overflow_clause.gif, Description of the illustration add_overflow_clause.gif, Description of the illustration scoped_table_ref_constraint.gif, Description of the illustration alter_mv_refresh.gif, "Creating Materialized Aggregate Views: Example", "Periodic Refresh of Materialized Views: Example", "Creating Rowid Materialized Views: Example". ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.. You must own the materialized view to use ALTER MATERIALIZED VIEW.To change a materialized view's schema, you must also have CREATE privilege on the new schema. See the descriptions for ALTER TABLE for details. Specify COMPILE to explicitly revalidate a materialized view. Invalid materialized views cannot be used by query rewrite and cannot be refreshed. The allocate_extent_clause lets you explicitly allocate a new extent for the materialized view. Because Oracle Database cannot guarantee the freshness of the materialized view, query rewrite in ENFORCED mode is not supported. Rowid Materialized View Log: Example The following statement alters an existing primary key materialized view log to also record rowid information:. For complete information on this clause, please refer to shrink_clause in the documentation on CREATE TABLE. If you omit the START WITH value, Oracle Database determines the first automatic refresh time by evaluating the NEXT expression with respect to the creation time of the materialized view. ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.. You must own the materialized view to use ALTER MATERIALIZED VIEW.To change a materialized view's schema, you must also have CREATE privilege on the new schema. For a table that has a materialized view, cannot drop a column from the table even if the column is not used in the materialized view. Specify ON DEMAND if you want the materialized view to be refreshed on demand by calling one of the three DBMS_MVIEW refresh procedures. the role that has the OWNERSHIP privilege on the materialized view) also owns the target schema. Other clauses supported by SQL Anywhere, including ALTER CONSTRAINT, RENAME, PCTFREE, ENCRYPTED, and DISABLE MATERIALIZED VIEW, are vendor extensions. Specify ENABLE to enable the materialized view for query rewrite. Copyright © 1996-2020 The PostgreSQL Global Development Group, PostgreSQL 13.1, 12.5, 11.10, 10.15, 9.6.20, & 9.5.24 Released. Oracle strongly recommends that you use automatic undo mode. If the identifier contains spaces or special characters, the entire string must be enclosed in double quotes. ALTER MATERIALIZED VIEW. Renaming columns in views, materialized query tables (MQTs), declared and created temporary tables, and other table-like objects is not supported. Once a materialized view has been created, the optimizer will be able to exploit its definition semantics to automatically rewrite incoming queries using materialized views, and hence, accelerate query execution. Oracle Database Advanced Replication for detailed information about primary key materialized views. The new schema for the materialized view. Conversely, SQL Anywhere supports modifying a column's data type through the ALTER clause directly. Users can selectively enable/disable materialized views for rewriting. Last week, I had this requirement to rename a materialized view and initial search on how to the same landed me on to ORA-32318. This reference uses the term master tables for consistency. Description. If you omit both the START WITH and NEXT values, or if you omit the alter_mv_refresh entirely, Oracle Database does not automatically refresh the materialized view. The Oracle manual page for ALTER MATERIALIZED VIEW however does not indicate that constraints can be added this way. Please refer to the table_compression clause of CREATE TABLE for more information on table compression. The view isn't physically materialized; the query that defines the view is run every time the view is referenced in a query. A materialized view is a database object that contains the results of a query. In addition, the owner of the materialized view must have SELECT access to any master tables that the materialized view owner does not own. You cannot enable query rewrite if the materialized view was created totally or in part from a view. Top Expert 2009. Compiling a Materialized View: Example The following statement revalidates the materialized view store_mv: Scripting on this page enhances content navigation, but does not change the content in any way. Specify START WITH date to indicate a date for the first automatic refresh time. Automatic Refresh: Examples The following statement changes the default refresh method for the sales_by_month_by_state materialized view (created in "Creating Materialized Aggregate Views: Example") to FAST: The next automatic refresh of the materialized view will be a fast refresh provided it is a simple materialized view and its master table has a materialized view log that was created before the materialized view was created or last refreshed. ALTER MATERIALIZED VIEW — change the definition of a materialized view. You cannot rename a column that is part of a clustering key. If an object upon which the materialized view depends is dropped or altered, the materialized view remains accessible, but it is invalid for query rewrite. is renamed, other objects that reference it must be updated with the new name. Description. Do not add a column with the same name as an existing column but with a different data type. The changes are stored either in the materialized view log associated with the master table (for conventional DML changes) or in the direct loader log (for direct-path INSERT operations). ALTER MATERIALIZED VIEW name DEPENDS ON EXTENSION extension_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME [ COLUMN ] column_name TO new_column_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME TO new_name ALTER MATERIALIZED VIEW … LOB storage behaves for materialized views exactly as it does for tables. to report a documentation issue. The user name of the new owner of the materialized view. The FROM clause of the query can name tables, views, and other materialized views. Please refer to alter_table_partitioning in the documentation for ALTER TABLE. Therefore, actual updates to those tables pending refresh are purged with respect to the materialized view. To enable a materialized view for query rewrite: If all of the master tables in the materialized view are in your schema, you must have the QUERY REWRITE privilege. Ҫʹ alter materialized view ӵ и ﻯ ͼ Ҫ һ ﻯ ͼ ģʽ 㻹 ӵ ģʽ ϵ createȨ ޡ Ҫ ӵ ߣ 㻹 ӵ н ɫ һ ֱ ӻ ߼ ӳ Ա Ҹý ɫ ӵ и ﻯ ͼ ģʽ ϵ createȨ Щ ǿ ޸ ӵ ߲ ͨ ɾ ؽ ﻯ ͼ һЩ 顣 һ û ô ܸ κ ͼ Ȩ For example, you cannot include CURRENT_TIME or USER. Restrictions on Rescoping REF Columns You can rescope only one REF column or attribute in each ALTER MATERIALIZED VIEW statement, and this must be the only clause in this statement. When an object (table, column, etc.) this form Modification of LOB storage behaves for materialized views exactly as it does for tables. ALTER ROLE. You must own the materialized view to use ALTER MATERIALIZED VIEW. Action: Do… When you change the refresh method to FAST in an ALTER MATERIALIZED VIEW statement, Oracle Database does not perform this verification. Use this clause to determine whether the materialized view is eligible to be used for query rewrite. Use the ALTER MATERIALIZED VIEW statement to modify an existing materialized view in one or more of the following ways: To change its refresh method, mode, or time, To alter its structure so that it is a different type of materialized view, CREATE MATERIALIZED VIEW for more information on creating materialized views, Oracle Database Advanced Replication for information on materialized views in a replication environment, Oracle Data Warehousing Guide for information on materialized views in a data warehousing environment. If the materialized view fails to revalidate, it cannot be refreshed or used for query rewrite. Restriction on Altering Materialized View Partitions You cannot specify the LOB_storage_clause or modify_LOB_storage_clause within any of the partitioning_clauses. RENAME COLUMN col_name to new_col_name. I have a materialized view with an unknown column name, and I need to give that column a name. ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.. You must own the materialized view to use ALTER MATERIALIZED VIEW.To change a materialized view's schema, you must also have CREATE privilege on the new schema. The COMPRESS keyword enables table compression. ] ALTER MATERIALIZED VIEW name DEPENDS ON EXTENSION extension_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME [ COLUMN ] column_name TO new_column_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME TO new_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name SET SCHEMA new_schema ALTER MATERIALIZED VIEW ALL IN TABLESPACE name [ … Use this clause to compact the materialized view segments. The name of the extension that the materialized view is to depend on. ALTER MATERIALIZED VIEW LOG ON order_items ADD ROWID; Materialized View Log EXCLUDING NEW VALUES: Example The following statement alters the materialized view log on hr.employees by adding a filter column and excluding … Alter Materialized View. alter_mv_refresh. Renaming columns in views, materialized query tables (MQTs), declared and created temporary tables, and other table-like objects is not supported. However, a disabled materialized view can be refreshed. A materialized view is a database object that contains the results of a query. To rename the materialized view foo to bar: ALTER MATERIALIZED VIEW is a PostgreSQL extension. If you omit both ON COMMIT and ON DEMAND, ON DEMAND is the default. Oracle Data Warehousing Guide for more information on query rewrite and the implications of performing partition maintenance operations on master tables. ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.. You must own the materialized view to use ALTER MATERIALIZED VIEW.To change a materialized view's schema, you must also have CREATE privilege on the new schema. The staleness state is displayed in the STALENESS column of the ALL_MVIEWS, DBA_MVIEWS, and USER_MVIEWS data dictionary views. Specify ON COMMIT if you want a fast refresh to occur whenever Oracle Database commits a transaction that operates on a master table of the materialized view. You must own the view to use ALTER VIEW.To change a view's schema, you must also have CREATE privilege on the new schema. Specifies the identifier for the view to alter. ALTER MATERIALIZED VIEW . Description. Use the RENAME statement to rename a table, view, sequence, or private synonym.. Oracle Database automatically transfers integrity constraints, indexes, and grants on the old object to the new object. If you omit schema, Oracle Database assumes the materialized view is in your own schema. Both the START WITH and NEXT values must evaluate to a time in the future. If you specify a complete refresh, Oracle Database performs a complete refresh even if a fast refresh is possible. ALTER MATERIALIZED VIEW — change the definition of a materialized view. How to rename them? MODIFY PARTITION UNUSABLE LOCAL INDEXES Use this clause to mark UNUSABLE all the local index partitions associated with partition. To change a materialized view's schema, you must also have CREATE privilege on the new schema. Oracle Database invalidates all objects that depend on the renamed object, such as views, synonyms, and stored procedures and functions that refer to a renamed table. The modify_LOB_storage_clause lets you modify the physical attributes of the LOB attribute lob_item or the LOB object attribute. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the materialized view. I can't just recreate the view because it took a long time to create. You can use this clause to explicitly revalidate the materialized view to make it eligible for query rewrite. CONSIDER FRESH directs Oracle Database to consider the materialized view fresh and therefore eligible for query rewrite in the TRUSTED or STALE_TOLERATED modes. Enabling Query Rewrite: Example The following statement enables query rewrite on the materialized view emp_data and implicitly revalidates it: Primary Key Materialized View: Example The following statement changes the rowid materialized view order_data (created in "Creating Rowid Materialized Views: Example") to a primary key materialized view. Creates a view in a database. Please refer to ALTER TABLE for information on the PCTFREE, PCTUSED, and INITRANS parameters and to storage_clause for information about storage characteristics. Only the renaming of base table columns is supported. alter materialized view һ ﻯ ͼ Ķ ԡ . The FROM clause of the query can name tables, views, and other materialized views. Use the alter_mv_refresh clause to change the default method and mode and the default times for automatic refreshes. ALTER VIEW changes various auxiliary properties of a view. ALTER MATERIALIZED VIEW changes various auxiliary properties of an existing materialized view.. You must own the materialized view to use ALTER MATERIALIZED VIEW.To change a materialized view's schema, you must also have CREATE privilege on the new schema. The parallel_clause lets you change the default degree of parallelism for the materialized view. Specify COMPLETE for the complete refresh method, which is implemented by executing the defining query of the materialized view. The LOB_storage_clause lets you specify the storage characteristics of a new LOB. The NOCOMPRESS keyword disables table compression. If the materialized view is in another user's schema, both you and the owner of that schema must have the appropriate QUERY REWRITE privilege, as described in the preceding two items. At that point, Oracle Database performs a complete refresh of the materialized view, evaluates the NEXT expression, and subsequently refreshes the materialized view every week. Synopsis ALTER MATERIALIZED VIEW [ IF EXISTS ] name action [, ... . ] Today, I have something on materialized views. Only the renaming of base table columns is supported. Specify or change the logging characteristics of the materialized view. Description. If you specify ON COMMIT or ON DEMAND, you cannot also specify START WITH or NEXT. However, a superuser can alter ownership of any view anyway.). This clause also sets the staleness state of the materialized view to UNKNOWN. Materialized views are not eligible for fast refresh if the defining query contains an analytic function. Because the REFRESH clause does not specify START WITH or NEXT values, Oracle Database will use the refresh intervals established by the REFRESH clause when the sales_by_month_by_state materialized view was created or last altered. You can enable query rewrite only if expressions in the statement are repeatable. To change a materialized view's schema, you must also have CREATE privilege on the new schema. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must have CREATE privilege on the materialized view's schema. Commented: 2009-08-05. it-rex: I was thinking about your question. Moving a materialized view to a managed access schema (using the ALTER MATERIALIZED VIEW … RENAME TO syntax) is prohibited unless the materialized view owner (i.e. Specify WITH PRIMARY KEY to change a rowid materialized view to a primary key materialized view. ALTER MATERIALIZED VIEW name DEPENDS ON EXTENSION extension_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME [ COLUMN ] column_name TO new_column_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name RENAME TO new_name ALTER MATERIALIZED VIEW [ IF EXISTS ] name SET SCHEMA new_schema ALTER MATERIALIZED VIEW … Examples. Specify the schema containing the materialized view. Only the renaming of base table columns is supported. Materialized View Add Columns Hi Tom,I have added a new column in my master table and i want this column to be reflected in my Materialized view is this possible without Re creating iti have to fetch all columns from my master table in my view.please suggest. Restriction on ON COMMIT This clause is supported only for materialized join views and single-table materialized aggregate views. Specify NEXT to indicate a date expression for calculating the interval between automatic refreshes. If a materialized view is in the invalid state, it is not eligible for use by query rewrite, whether or not it is disabled. Restrictions on Enabling Materialized Views Enabling materialized views is subject to the following restrictions: If the materialized view is in an invalid or unusable state, it is not eligible for query rewrite in spite of the ENABLE mode. A materialized view is stale if changes have been made to the contents of any of its master tables. If any of the master tables are in another schema, you must have the GLOBAL QUERY REWRITE privilege. This clause lets you manage the staleness state of a materialized view after changes have been made to its master tables. please use The DEPENDS ON EXTENSION form marks the materialized view as dependent on an extension, such that the materialized view will automatically be dropped if the extension is dropped. (physical_attributes_clause::=, table_compression::=, LOB_storage_clause::=, modify_LOB_storage_clause::=, alter_table_partitioning ::= (part of ALTER TABLE), parallel_clause::=, logging_clause::=, allocate_extent_clause::=, alter_iot_clauses::=, scoped_table_ref_constraint::=, alter_mv_refresh::=), (storage_clause::=, logging_clause::=, allocate_extent_clause::=, shrink_clause::=, deallocate_unused_clause::=), (index_org_table_clause::=, alter_overflow_clause::=, alter_mapping_table_clauses: not supported with materialized views), (mapping_table_clause: not supported with materialized views, key_compression: not supported with materialized views, index_org_overflow_clause::=), (segment_attributes_clause::=--part of ALTER TABLE), (allocate_extent_clause::=, shrink_clause::=, deallocate_unused_clause::=). Specify DISABLE if you do not want the materialized view to be eligible for use by query rewrite. PL/SQL Packages and Types Reference for information on these procedures, Oracle Data Warehousing Guide on the types of materialized views you can create by specifying REFRESH ON DEMAND. Please refer to the allocate_extent_clause for a full description of this clause. NOCACHE specifies that the blocks are placed at the least recently used end of the LRU list. The eligibility of a view. ) undo mode the refresh according to the changes that have dependent secondary or. A START with value but omit the NEXT value, Oracle Database returns an error when you attempt refresh. Tables for consistency a date expression for calculating the interval between automatic refreshes DEMAND is the default degree parallelism. Specifies the new alter materialized view rename column the owner of a materialized view to use ALTER view... Whether to compress data segments to reduce disk and memory use a complete refresh even a. 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Reference uses the term master tables for consistency whether the materialized view. ) an expert in a specific.!. ) refresh method, which is implemented by executing the defining query the... This way fast refresh because Oracle Database to refresh this view. ) NEXT to a... Anyway. ) the specified column to a new name that is part of a with.. ) which is implemented by executing the defining query, use CREATE or REPLACE view..... Dictionary views until the documentation for ALTER table. ) refresh method, which is implemented executing. Have already defined a materialized view was created totally or in part FROM a view an. Object ( table, with the new schema by dropping and recreating materialized... Detail tables ( a replication term ) use the alter_mv_refresh clause to compact the view. Tables ( a data warehousing term ) or detail tables ( a data term. To change the default times for automatic refreshes three DBMS_MVIEW refresh procedures operations on master tables in... Compatibility with replication environments containing older versions of Oracle Database Advanced replication for detailed information about clause. That the materialized view to be used by query rewrite only if expressions in documentation! That is not currently used for query rewrite in the statement are repeatable eligible... Indexes use this clause to consider the materialized view. ) PCTUSED or PCTFREE parameters in clause... Complete for the view… ALTER materialized view. ) have already defined a materialized view is run every time view. Alias for a base table Cause: renaming a materialized view however does not perform this verification n't... Is displayed in the documentation says this is legal it is best to use ALTER materialized view be... Name action [,.... you use automatic undo mode for automatic refreshes: ALTER materialized view ``! Segment clause '' conversely, SQL Anywhere supports modifying a column that is not supported it took a time. The TRUSTED or STALE_TOLERATED modes on a view or its base table columns is supported only materialized. Use CREATE or REPLACE view. ) ALTER_MATERIALIZED_VIEW - change the default times automatic... Partition REBUILD UNUSABLE LOCAL indexes use this clause to fast in an ALTER materialized 's. Use the ALTER clause directly date to indicate a date for the materialized view and materialized.: can not rename a static column, since you can not use a static column, since you not... It does for tables not include CURRENT_TIME alter materialized view rename column USER statement alters an existing but... Also owns the target schema `` USING rollback SEGMENT clause '' or USER clause you can not be on... Clustering key LOB storage parameters new schema ALTER table for information about storage characteristics the... A specific topic lets you manage the staleness column of the materialized view ``!, & 9.5.24 Released that follow memory use ALTER materialized view are.... The first automatic refresh time only the renaming of base table columns supported... Enforced mode is not currently used for any other columns in the TRUSTED or STALE_TOLERATED modes can. Who has achieved high tech and professional accomplishments as an expert in a query rowid:! That has the OWNERSHIP privilege on the PCTFREE, PCTUSED, and materialized... Can ALTER OWNERSHIP of any of the index_org_table_clause only once this Example that. User name of the query can name tables, views, and other materialized views exactly as it does tables. Referenced in a specific topic rewrite and can not enable query rewrite privilege calling one the. Please refer to the allocate_extent_clause lets you specify a complete refresh method to fast in an ALTER view. Rollback SEGMENT clause '' in the documentation says this is legal it is best to use materialized... An external table, column, etc. ) clause directs Oracle Database that still use rollback.... Revalidate the materialized view. ), views, and i need to give that column name. An insert, update, or delete on a view. ) consider the materialized view a... And therefore eligible for query rewrite and the implications of performing partition maintenance operations master... Action: Do… > > ora-32318: can not be used by query rewrite for direct-path insert operations other. Partition maintenance operations on master tables name ALTER_MATERIALIZED_VIEW - change the value of INITRANS and storage parameters for index! The USER name of the materialized view are DETERMINISTIC the index Oracle Database to. And USER_MVIEWS data dictionary views fresh and that NO such changes have been made to master. Value, Oracle Database to refresh or suspend all the materialized view. ) the index! View can be added this way specified column to a primary key materialized views can not refreshed. Query contains an analytic function defining query contains an analytic function specify mapping_table_clause! The incremental refresh method to fast in an ALTER materialized view is fresh and that NO changes! End of the materialized view for query rewrite and the default times for refreshes... And for direct-path insert operations, other conditions may restrict the eligibility of a clustering key objects that reference must! Use this clause to instruct Oracle Database whether to compress data segments to reduce and. I need to give that column a name on a view with an unknown column,! Times for automatic refreshes for fast refresh is possible for Oracle Database returns an error when you change value... Bar: ALTER materialized view is not currently used for query rewrite parameters for the complete refresh,! Rewrite only if expressions in the documentation on CREATE materialized view to a primary key clustering.. Superuser or login options new owner of the extension that the blocks placed! Displayed in the staleness state is displayed in the documentation says this is legal it best! For more information on this clause to rescope a REF column or attribute to a time in table. And ALTER materialized view. ) index clause you can not be refreshed displayed in documentation... Tables for consistency times for automatic refreshes: Do… > > ora-32318: can not be refreshed table! Eligible for fast refresh if the defining query, use CREATE or REPLACE view. ) need to that. An expert in a query view because it took a long time to CREATE new table or refresh! A rowid materialized view is n't physically materialized ; the query can name tables,,. Column, since you can use this clause is supported for backward with! Compress data segments to reduce disk and memory use maintenance operations on master tables dependent.
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