PL/SQL UPDATE VIEW
View in Oracle Database is a logical table that can be regarded as a virtual table that joins data from one or more tables. Views provide an easy way to query and display data, but they are usually only good for something that is read-only when it is implemented. In PL/SQL, developers can change views which, in turn, can allow for an up-to-the-minute update of data presented through the views upgrading. The UPDATE VIEW statement in PL/SQL provides the medium for such updates by triggering important changes in the base tables when necessary.
Syntax:
The syntax for updating a view in PL/SQL is similar to updating a table:
UPDATE view_name
SET column1 = value1, column2 = value2, ...
[WHERE condition];
Here,
- view_name is the name of the view, this view.
- column1, column2, etc. are replaced with the columns to be modified.
- col1, col2, etc. are being substituted by values 1, 2, etc. for the corresponding columns.
- The optional WHERE clause dictates only specific conditions that satisfy the update operation will be performed. If neglected, every single row being presented by the view will be overwritten.
PL/SQL UPDATE VIEW
About Oracle Database management, the capability of updating data using views is the key element that gives data manipulation operations flexibility and efficiency. The PL/SQL, Oracle’s procedural extension to SQL, permits the execution of various complex data operations like view updating.
In this article, we will discuss the syntax and capabilities of PL/SQL UPDATE VIEW and provide a learning path to help developers adapt it to their data management needs.