Updating Data in a View in SQL Server

Q

Can You Update Data in a View in SQL Server?

✍: FYIcenter.com

A

Can you update data in a view? The answer is no.

But if the question is "Can you update data in the underlying table through view?" The answer is then yes. SQL Server will allow you to update data in the underlying table through a view. The tutorial exercise below is a good example:

UPDATE fyi_links_top SET url = REVERSE(url) 
   WHERE id = 100001;
GO

SELECT * FROM fyi_links_top;
GO
id     counts  url
------ ------- -------------------------------------------
100001 1000001 moc.retneciyf.abd
36470  999966  dgqnvmy   pyjqd toqcoupuxortasdtzvcae jonfb
12292  999953     qebmw v qqmywe q  kza  wskxqns jnb 

SELECT TOP 1 * FROM fyi_links ORDER BY counts DESC;
GO
id     url               notes counts      created
------ ----------------- ----- ----------- ----------
100001 moc.retneciyf.abd NULL  1000001     2007-05-19

⇒ Deleting Data from a View in SQL Server

⇐ Inserting Data into a View in SQL Server

⇑ Understanding and Managing Views in SQL Server

⇑⇑ SQL Server Database Tutorials

2016-11-04, 1905🔥, 0💬

Using ORDER BY to Define a View in SQL Server
Can You Use ORDER BY When Defining a View in SQL Server? Sometimes you want the data in a view to be sorted and try to use the ORDER BY clause in the SELECT statement to define the view. But SQL Server will not allow you to use ORDER BY to define a view without the TOP clause. The tutorial exercise ... 2016-11-04, 2119🔥, 0💬

Assigning New Column Names in a View in SQL Server
How To Assign New Column Names in a View in SQL Server? By default, column names in a view are provided by the underlying SELECT statement. But sometimes, the underlying SELECT statement can not provide names for output columns that specified as expressions with functions and operations. In this cas... 2016-11-03, 2027🔥, 0💬

ALTER VIEW - Modifying Existing Views in SQL Server
How To Modify the Underlying Query of an Existing View in SQL Server? If you have an existing view, and want to change the underlying SELECT statement, you can use the "ALTER VIEW ..." statement to redefine the view. The tutorial exercise below shows you how modify an existing view: USE FyiCenterDat... 2016-11-04, 1989🔥, 0💬

Creating a View with Data from Another View in SQL Server
Can You Create a View using Data from Another View in SQL Server? Can You Create a View with Data from Another View? The answer is yes. A view can be used as a table to build other views. The tutorial exercise below shows you how to create a view using data from another view: USE AdventureWorksLT; G... 2016-11-05, 1928🔥, 0💬

Determining Data Types of View Columns in SQL Server
How Column Data Types Are Determined in a View in SQL Server? When you define a view, its columns are defined through a list of expressions in the underlying SELECT statement. Their data types will be determined implicitly by the expressions. For example, if the column expression is a column name of... 2016-11-03, 1909🔥, 0💬

Updating Data in a View in SQL Server
Can You Update Data in a View in SQL Server? Can you update data in a view? The answer is no. But if the question is "Can you update data in the underlying table through view?" The answer is then yes. SQL Server will allow you to update data in the underlying table through a view. The tutorial exerc... 2016-11-04, 1906🔥, 0💬

Deleting a Table That Is Used by a View in SQL Server
What Happens If You Delete a Table That Is Used by a View in SQL Server? Assuming that you have a table which is used by a view, and you try to delete that table. SQL Server will let you delete the table without any trouble. But that view will become invalid. The tutorial exercise below shows you wh... 2016-11-04, 1905🔥, 0💬

Inserting Data into a View in SQL Server
Can You Insert Data into a View in SQL Server? Can you insert data into a view? The answer is no. But if the question is "Can you insert data into the underlying table through view?" The answer is then yes. SQL Server will allow you to insert data into the underlying table through a view with a cond... 2016-11-04, 1739🔥, 0💬

Creating an Index on a View in SQL Server
How To Create an Index on a View in SQL Server? If you need to search and sort data in a view with a large number of row, you may want to create an index on the view to speed up your search process. The tutorial exercise below shows you how to create a unique clustered index on a view. DROP VIEW fyi... 2016-11-03, 1717🔥, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.