Solved

Drop a view if it exists

Posted on 2011-02-12
6
693 Views
Last Modified: 2012-08-14
Insanely easy points out there for you T-SQL jockeys...

I have a view which I am implementing, and the CREATE VIEW statement works exactly as expected.

Before running the CREATE VIEW statement, I want to check for existence of that same view, and if it exists, to drop the view.  So, the logic looks like this:


USE MyDB

GO

IF EXISTS (statement to find the view) DROP VIEW dbo.MyView

GO

CREATE VIEW dbo.MyView AS <SQL statement>

Open in new window



What I do not have is the "statement to find the view" bit :)

Thanks!
0
Comment
Question by:Patrick Matthews
6 Comments
 
LVL 3

Accepted Solution

by:
sunezapa earned 500 total points
ID: 34879769
what about:

IF EXISTS  (Select * From dbo.sysobjects Where id =
Object_ID('dbo.MyView') and OBJECTPROPERTY(id, N'IsView') = 1) 

Open in new window

0
 
LVL 14

Expert Comment

by:leoahmad
ID: 34879772
if not exists (select * from sysobjects
  where name='view-name' and xtype='V')
    exec ('create view view-name as  ...')
0
 
LVL 16

Expert Comment

by:BurnieP
ID: 34879774

if exists (select * from sys.objects where [object_id] = object_id('dbo.MyView ) )
begin
 DROP VIEW dbo.MyView
end

CREATE VIEW dbo.MyView AS <SQL statement>

Open in new window

0
U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

 
LVL 31

Expert Comment

by:James Murrell
ID: 34879786
i use


USE MyDB
GO

IF EXISTS(SELECT * FROM sys.views
WHERE name = 'StudentGrades' AND schema_id = SCHEMA_ID('dbo'))
DROP VIEW dbo.MyView
GO

CREATE VIEW dbo.MyView AS <SQL statement>
GO

Open in new window

0
 
LVL 31

Expert Comment

by:James Murrell
ID: 34879802
in fact how about
USE [MyDB]
GO

IF  EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[MyView]'))
DROP VIEW [dbo].[MyView]
GO

USE [MyDB]
GO


CREATE VIEW dbo.MyView AS <SQL statement>
GO

Open in new window

0
 
LVL 92

Author Closing Comment

by:Patrick Matthews
ID: 34880274
Thanks!
0

Featured Post

Ransomware: The New Cyber Threat & How to Stop It

This infographic explains ransomware, type of malware that blocks access to your files or your systems and holds them hostage until a ransom is paid. It also examines the different types of ransomware and explains what you can do to thwart this sinister online threat.  

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to reset the password of the sa account on a Microsoft SQL Server.  The steps in this article work in SQL 2005, 2008, 2008 R2, 2012, 2014 and 2016.
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
Familiarize people with the process of utilizing SQL Server functions from within Microsoft Access. Microsoft Access is a very powerful client/server development tool. One of the SQL Server objects that you can interact with from within Microsoft Ac…
Via a live example combined with referencing Books Online, show some of the information that can be extracted from the Catalog Views in SQL Server.

839 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question