Views

XMLTABLE to convert XML to relational data

XMLTABLE: Convert XML Data to Relational Form

Using the SQL/XML function XMLTABLE in Oracle database 12c, to map XML data into relational rows and columns.

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Grant SELECT on V$ Views

Grant SELECT on V$ views to allow non-admin database users to query SYS-owned V$ views (dynamic performance views) such as V$INSTANCE or V$SESSION.

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How to Find out Your Oracle Database Version

Three ways to find out your Oracle database version in SQL and PL/SQL: using V$VERSION, V$INSTANCE, or DBMS_DB_VERSION constants.

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Cast PLSQL Function Output as View

How to Cast PLSQL Function Output as View

An Oracle view is typically like a window to the output of a SQL statement, but sometimes, a single SQL isn’t sufficient to get you the result you want. You may need to do some procedural data manipulation before you get the output you want. Does this mean, you cannot use an Oracle view if […]

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The Difference Between Views and Materialized Views

Other than the word "view" in their names and the fact that both are defined by an underlying SQL, there is little else common between Oracle views and materialized views – yet they can be a source of great confusion to beginners. Here’s a summary of the key differences between views and materialized views, to […]

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Oracle Views

20 Things You Should Know About Oracle Views

A view is like a virtual table. It takes the output of a query and treats it like a table. A view can be based on one or more tables or other views. These tables/views are called base tables. A view takes up no storage space other than for the definition of the view in […]

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