Oracle updating through a view

26-Mar-2020 08:59

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Insert, Update and Delete SQL Views You can use the "OR Replace" option.

If the view is updateable (not all views are) the updates are applied to the table data.

a sql code to remove all the special characters from a particular column of a table example :i NPUT-ABC -D. FOUTPUT ABC DEFAND IF THERE IS TWO NAMES LIKE ABC PRIVATE LTDONE SPACE SHOULD BE MAINTAINED BETWEEN 2 WORDS.... Hi Tom, I'm sorry, I am working on so much topics, that I don't have time to search.

If the view exists it will be replaced with the new definition or a new view will be created.

We can use Create or Replace option to create views instead of dropping the view and recreating it, as with this option the privileges granted on the view are preserved, but the dependent stored programs and view become invalid.

In-line views are commonly used to simplify complex queries by removing join operations and condensing several separate queries into a single query. This feature is commonly referred to in the MSSQL community as a derived table, and in the Postgres community simply refers to it as a subselect (subselects are inline views subqueries in Oracle nomenclature).If I update the view, will the data in the original table get updated?When modifying data through a view (that is, using INSERT or UPDATE statements) certain limitations exist depending upon the type of view.You can use DML operations on a view if the view does not include Group by, Start with, Connect by, Distinct clauses or any subqueries and set operations(Union, union all, intersect and minus).

Whatever DML operations you performed on a view they actually affect the base table of the view. You can Query, Insert, Update and delete from views, just as any other table.Additionally, inserting data is prohibited for the following types of views: Yes.

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