drop materialized view if exists oracle

If you omit schema, then Oracle Database assumes the materialized view log and master table are in your own schema. Second, you specify the name of the view to be dropped. I've been trying to DROP an MV which is defined as REFRESH ON DEMAND and there are no locks anywhere. table. all_mview_logs will show you all the materialized view logs that you have access to. Cause. CREATE MATERIALIZED VIEW and ALTER MATERIALIZED VIEW for more information on materialized views, CREATE MATERIALIZED VIEW LOG for information on materialized view logs, 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 you skip the schema name, Oracle assumes that the view is in your own schema. How to drop materialized view logs if underlying log table ($MLOG_…) is dropped? ORA-00942 is one of the many errors which Oracle developer ,Oracle DBA often gets.. Specify the name of the master table associated with the materialized view log to be dropped. I also recreated the views using a SQL script (just create one for another table and use it as a template) and it seemed to work ok. Oracle Database does not drop views, materialized views, and synonyms that are dependent on the view but marks them INVALID. Was Looney Tunes considered a cartoon for adults? Drop table MY_MVIEW; And try to re-create the materialized view. But if its showing only one record with Object_type = Table then drop that table from database . (3 replies) Hi Gurus Oracle 8.1.7 on HP Unix I have some problems in Materialized view Here are the sequence of steps Created a normal view CT_PRODUCTID_VW Created a materialized view CT_PRODUCID_MVW Dropped view CT_PRODUCTID_VW Rename CT_PRODUCTID_MVW to CT_PRODUCTID_VW Now I cannot drop the materialized view CT_PRODUCTID_VW SQL> select … Drop the materialized views in this tablespace. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. -- Create Sample Materialized View DROP MATERIALIZED VIEW SCHEMA1.MV_REFRESH_TEST; CREATE MATERIALIZED VIEW SCHEMA1.MV_REFRESH_TEST AS SELECT T1.COL1, T1.COL2, T2.COL3 FROM SCHEMA2.TAB2 T1 JOIN SCHEMA1.TAB1 T2 ON T1.COL2 = T2.COL2;-- View Materialized View SELECT * FROM SCHEMA1.MV_REFRESH_TEST- … To maintain the database consistency, we may need to refresh more than one Materialized View at a same time in a single transaction. To see all views in a database you must query DBA_MVIEWS or DBA_SNAPHOTS. A player's character has spent their childhood in a brothel and it is bothering me. SQL> SQL> CREATE MATERIALIZED VIEW MV 2 ON PREBUILT TABLE 3 REFRESH FORCE ON DEMAND 4 AS 5 SELECT application_mode 6 FROM tbl_name 7 WHERE cnt > 0 8 GROUP BY application_mode; Materialized view created. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Use the IF EXISTS clause if you do not want an error returned when the DROP MATERIALIZED VIEW statement attempts to remove a materialized view that does not exist. Operational amplifier when the non-inverting terminal is open. A materialized view, or snapshot as they were previously known, is a table segment whose contents are periodically refreshed based on a query, either against a local or remote table. Since most materialized views are read-only (although they can be updatable), no additional grants are necessary. In an attempt to work around another problem, I have mistakenly dropped the underlying tables for a materialized view log, and now I can neither drop that log nor the MV relating to it. Also, find indices belonging to materialized views in this tablespace and drop then. Oracle Database - Enterprise Edition - Version 11.2.0.3 and later: ORA-23515: Materialized Views and/or Their Indices Exist in the Tablespace Dropping a Materialized View Log: Example The following statement drops the materialized view log on the oe.customers master table: Scripting on this page enhances content navigation, but does not change the content in any way. "SM_MEDDRA_TERM_MAPPING" ag312>create materialized view sm_meddra_term_mapping 2 build immediate 3 refresh force on commit 4 as 5 select deptno, count(*) sum_sal 6 from dept 7 group by deptno; from dept * ERROR at line 6: ORA-00955: name is already … Oracle returns an error ORA-01031: insufficient privileges, Shrinking the SYSTEM tablespace in Oracle, Why do I get ORA-27102 ON WINDOWS 64 BIT if I increase the memory to 2.5GB, Random Assignment of Employees to Locations Oracle SQL, System account locked, insufficient privileges to log in as sysdba, SSIS Slow Data Transfer between Oracle and SQL Server 2016, What's the difference between data classification and clustering (from a Data point of view). 2) view_name. The trick is to use the procedural extension language of SQL (like PL/SQL for Oracle, because in case of Oracle we need it most often). Dear Tom,Hi !How are you doing !Thanks very much for your Kind help again and again.Sometimes I wonder if you were not there what would have happened to my role.My sincere thanks and Regards to you.Ques) This Quest is based on Materialized View .Whenwe create a Materialize How to refresh Materialized View when the changes are made in the B tables ! These materialized views include rowid materialized views, primary key materialized views, and subquery materialized views. DROP MATERIALIZED VIEW drops an existing materialized view. After you drop a materialized view log, some materialized views based on the materialized view log master … Why? Specify the name of the master table associated with the materialized view log to be dropped. Can a computer analyze audio quicker than real time playback? ORA-23515: materialized views and/or their indices exist in the tablespace. Existing user tables and views can be listed by querying the data dictionary. Why did clothes dust away in Thanos's snap? In an attempt to work around another problem, I have mistakenly dropped the underlying tables for a materialized view log, and now I can neither drop that log nor the MV relating to it. Our DBA says it's because those tables were manually dropped. Are future active participles of deponent verbs used in place of future passive participles? Using materialized views against remote tables is the simplest way to achieve replication of data between sites. Is the Rule of 5 (for constructors and destructors) outdated? You may had to add WITH SEQUENCE to your log creation to cope with certain use as stated in Oracle documentation : Specify SEQUENCE to indicate that a sequence value providing additional ordering information should be recorded in the materialized view … A DROP statement sits there and never returns. Specify the name of the master table associated with the materialized view log to be dropped. Specify the schema containing the materialized view log and its master table. You can drop them or redefine views and synonyms, or you can define other views in such a way that the invalid views and synonyms become valid again. How does buddhism describe what exactly, or where exactly, or how exactly, consciousness exists? But recompiling them never returns. user_mview_logs will show you all the materialized view logs that you own. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. SQL : SELECT * FROM ALL_OBJECTS WHERE OBJECT_NAME ='MY_MVIEW'; It should return 2 records, ojbect_type = TABLE and Object_type = MATERIALIZED VIEW. However the materialized view still can't be created and it still exists in DBA_OBJECTS with status invalid. After you drop a materialized view log, some materialized views based on the materialized view log master table can no longer be fast refreshed. rev 2020.12.18.38240, The best answers are voted up and rise to the top, Database Administrators Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, thanks for taking things into your own hands and sharing your solution. It should work. For example, if a materialized view is created with a refresh interval of 3 mins and is then placed in a refresh group with an internal of 5 mins, the materialized view will refresh every 5 mins. dba_mview_logs will show all the materialized view logs in the database but not everyone will have access to the dba_ views. - When a materialized view is placed in a refresh group, it will be refreshed at the interval set in the group, not in the materialized view. Dropping a Materialized View Log: Example, Description of the illustration drop_materialized_view_log.gif. Then we write a block and find by a select in the data dictionary if the object we are creating or dropping exists. Asking for help, clarification, or responding to other answers. Edited by: user10603649 on Jun 23, 2012 2:20 PM An attempt was made to drop a tablespace which contains materialized views and/or their indices. I don't know if the problem was to do with the underlying tables or something else, we bounced the instance anyway. ORA-12083: must use DROP MATERIALIZED VIEW to drop "AG312". Could the GoDaddy employee self-phishing test constitute a breach of contract? Actually ALL_MVIEWS and ALL_SNAPHOTS displays only the views the user has granted access on. 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. SQL> DROP MATERIALIZED VIEW SPATIAL_MV_TEST1; DROP MATERIALIZED VIEW SPATIAL_MV_TEST1 * ERROR at line 1: ORA-04020: deadlock detected while trying to lock object SDODATA.SPATIAL_MV_TEST1 SQL> In either the current session or a new session when we make a second attempt to drop the materialized view the result will be a success. How do we create an exercise environment like this: htop CPU% at ~100% but bar graph shows every core much lower. So I decided to drop MV and I just realized that something else is also wrong because after 5 minutes, drop statement failed and even my session has lost. If you omit schema, then Oracle Database assumes the materialized view log and master table are in your own schema. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Thanks for contributing an answer to Database Administrators Stack Exchange! Why was Yehoshua chosen to lead the Israelits and not Kaleb? You probably need create any dictionary. To drop a materialized view log, you must have the privileges needed to drop a table. Materialized Views in Oracle. What can I do? This can be achieved using a refresh group. site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. Use the DROP MATERIALIZED VIEW LOG statement to remove a materialized view log from the database. If you omit schema, then Oracle Database assumes the materialized view log and master table are in your own schema. Cause: The Oracle table or Oracle view entered does not exist, a synonym that is not allowed here was used, or a view was referenced where a table is required. Special care on view log. If you create an updatable materialized view, you must grant users UPDATE privilege on both the materialized view and the underlying local table it accesses. You cannot execute a DROP MATERIALIZED VIEW statement on an object that is currently being used by another connection. What exactly did Jar Jar do to get banished? You need special privileges or roles to query this view like the system privilege SELECT ANY DICTIONARY or the role SELECT_CATALOG_ROLE.

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