however, the underlying query resultset has been saved to a table. The upside of this is that when you query a materialized view, you are querying a table, which may also be indexed. In addition, because all the joins have been resolved at materialized...
As I know view is a virtual table that representing the result of a databse query. I am doing a research based on the usage of view and i found out there is another one called materialized view. I was looking for the materialized view in wikipedia. But I couldn't understand. A ...
为了实现精确的增量刷新,OceanBase 实现了类似 Oracle MLOG(Materialized View Log)的物化视图日志功能,通过日志详细跟踪记录基础表的增量更新数据,从而确保物化视图能够进行快速增量刷新。增量刷新方式尤其适用于数据量庞大且变更频繁的业务场景。 更多信息,参见官网文档物化视图。 如果您想要深入了解相关特性,参见Oceanbase ...
Is there a way to query for a more detailed report of what's missing? It points to a specific location in the query (the table in the last join), but I don't see any difference between it and the other tables. oracle permissions materialized-view oracle-19c Share Impr...
Oracle Answer First Prev Next Last Editorial / Best Answer Answered by: Renu Jan 26th, 2007 Materialized View stores both - definition of the view and rows resulted from execution of the viewMain disadvantage of materialized view is that, its contents get outdated when underlying base table ...
A free graphical user interface, Oracle SQL Developer allows database users and administrators to do their database tasks in fewer clicks and keystrokes. A productivity tool, SQL Developer's main objective is to help the end user save time and maximize the return on investment in the Oracle Da...
A free graphical user interface, Oracle SQL Developer allows database users and administrators to do their database tasks in fewer clicks and keystrokes. A productivity tool, SQL Developer's main objective is to help the end user save time and maximize the return on investment in the Oracle Da...
A materialized view is a summary in an Oracle database. An Enterprise Data Warehouse is a centralized repository of raw data that serves as the hub of your data warehousing system (EDW). By storing all essential business information in the most complete format, an EDW delivers a 360-degree ...
So, view is a "stored query " and " virtual table" Was this answer useful? Yes ReplySujatars Aug 8th, 2007 View is? a virtual table based on the result set of a SELECT statement. The fields in the view are fields from one or more real table. Was this answer useful? Yes ...
In Oracle and in the Postgres community, this temporary table is called an inline view. It is referred to as a subselect. Materialized View Materialized view replicates the retrieved data physically. This replicated data can be reused without executing the view again. This type of view is also...