Visual Studio 2010 Database Builds Drop If Exists

问题

Is there any way i can change the "Alter" statements for tables and procs to "Drop if exists" when the build spits out the scripts?? Using Visual Studio 2010 Ultimate. TFS 2010.

回答1:

I believe the code you are referring to is generated from a template.

Look here...

C:\Program Files\Microsoft Visual Studio 10.0\Common7\Tools\Templates\Database Project Items

and the modify these two files.

New Table Script.sql
New Stored Procedure Script.sql

回答2:

After the procedure has been created for the first time what you will see is the code the tool gets/reads from the database, no longer an script that you could edit; of course you could copy/paste whatever it shows you into a text editor and save it as an SQL file (.sql extension).

If you try this sample code

IF EXISTS (SELECT * FROM sysobjects WHERE type = 'P' AND name = 'usp_test_proc')
    BEGIN
        DROP  Procedure  usp_test_proc
    END
ALTER PROCEDURE dbo.usp_test_proc
    /*
    (
    @parameter1 int = 5,
    @parameter2 datatype OUTPUT
    )
    */
AS
    /* SET NOCOUNT ON */
    select name, comment from test_table
    RETURN

you will get this message:

"Unable to save object because the statement type is not supported. It must begin with CREATE or ALTER."

I suggest you create your own SQL procedure files and add the exists statment at the top, for example:

IF EXISTS (SELECT * FROM sysobjects WHERE type = 'P' AND name = 'usp_test_proc')
    BEGIN
        DROP  Procedure  usp_test_proc
    END
CREATE PROCEDURE usp_test_proc
    /*
    (
    @parameter1 int = 5,
    @parameter2 datatype OUTPUT
    )
    */
AS
    /* SET NOCOUNT ON */
    select name, comment from test_table
    RETURN

That way you can edit/change your SQL code file at your convenience then just recreate the procedure connecting to your database by opening a new query connection through the Visual Studio menu 'Data/Transact-SQL Editor/New Query Connection', opening the SQL file and clicking on the Execute SQL toolbar button (green arrow).

来源：https://stackoverflow.com/questions/7519445/visual-studio-2010-database-builds-drop-if-exists

标签

visual-studio-2010

build-automation

database-project