Then the query re-write mechanism in the Oracle server will automatically re-write the SQL query to use the materialized views. Thus Oracle Materialized Views & Query Rewrite Page 3 resulting in a significant improvement in query response time and eliminating the need for the end-user to be '...
The Oracle optimizer uses two different methods to recognize when to rewrite a query in terms of one or more materialized views. The first method is based on matching the SQL text of the query with the SQL text of the materialized view definition. If the first method fails, the optimizer ...
queryName(oracle.as.scheduler.query.QueryComparator c, String name) Creates a filter to query by metadata name MetadataQueryFilter queryPackage(oracle.as.scheduler.query.QueryComparator c, String packageName) Creates a filter to query by metadata package MetadataQueryFilter quer...
12 digit unique random number generation in c# / asp.net 2 digits month 2 dimensional ArrayList in VB.NET? 2 minutes before session timeout, warn the user and extend it 2D array - How to check if whole row or column contain same value 302 is sent back to browser when response.redirect...
is_system_querybooleanDetermines whether the query was executed by role with user_id = 10 (azuresu), which has superuser privileges and is used to perform control pane operations. Since this service is a managed PaaS service, only Microsoft is part of that superuser role. ...
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That covers basic configuration of PFS for query metrics, but you need one more thing: the MySQL user that the query metric tool uses needs a grant like: GRANT SELECT ON performance_schema.* TO ... Your query metric tool might require more privileges, but it certainly requires at leastSELE...
Oracle常用诊断事件清单发表于 2011 年 9 月 14 日 由 惜分飞 事件 说明 例子 Event 10013 – Monitor Transaction Recovery 在Startup时跟踪事务恢复 ALTER SESSION SET EVENTS ’10013 trace name context forever, level 1′; Event 10015 – Dump Undo Segment Headers- 在事务恢复后做Dump回退段头信息 ALTER...
privileges Oracle Database Reference for more information about the OPTIMIZER_SECURE_VIEW_MERGING initialization parameter 11.1.2.1.2 Predicate Pushing In predicate pushing, the optimizer "pushes" the relevant predicates from the containing query block into the view query...
In Builder mode, you can build queries using a visual interface. Dataset and table selection In the Dataset dropdown, select the MSSQL database to query. Grafana populates the dropdown with all databases that the user can access. Once you select a database, Grafana populates the dropdown ...