Nov 10, 2021 SSDT for Visual Studio 2015 and 2017 both use DacFx 17.4.1: Download Data-Tier Application Framework (DacFx) 17.4.1. Previous versions To download and install SSDT for Visual Studio 2015, or an older version of SSDT, see Previous releases of SQL Server Data Tools (SSDT and SSDT-BI). Sep 27, 2019 The Microsoft® SQL Server® 2012 Data-Tier Application Framework (March 2013) provides application lifecycle services for database development and management. Details Note: There are multiple files available for this download. Download Microsoft® SQL Server® Data-Tier Application Framework (18.2) from Official Microsoft Download Center The Microsoft SQL Server Data-Tier Application Framework (18.2) provides application lifecycle services for database development and management.-->
Applies to: SQL Server (all supported versions) Azure SQL Database
Exporting a deployed data-tier application (DAC) or database creates an export file that includes both the definitions of the objects in the database and all of the data contained in the tables. The export file can then be imported to another instance of the Database Engine, or to Azure SQL Database. The export-import operations can be combined to migrate a DAC between instances, to create an archive, or to create an on-premise copy of a database deployed in SQL Database.
Before You Begin
The export process builds a DAC export file in two stages.
The export builds a DAC definition in the export file - BACPAC file - in the same way a DAC extract builds a DAC definition in a DAC package file. The exported DAC definition includes all of the objects in the current database. If the export process is run against a database that was originally deployed from a DAC, and changes were made directly to the database after deployment, the exported definition matches the object set in the database, not what was defined in the original DAC.
The export bulk copies out the data from all of the tables in the database and incorporates the data into the export file.
The export process sets the DAC version to 220.127.116.11 and the DAC description in the export file to an empty string. If the database was deployed from a DAC, the DAC definition in the export file contains the name given to the original DAC, otherwise the DAC name is set to the database name.
Limitations and Restrictions
A DAC or database can only be exported from a database in SQL Database, or SQL Server 2005 (9.x) Service Pack 4 (SP4) or later.
You cannot export a database that has objects that are not supported in a DAC, or contained users. For more information about the types of objects supported in a DAC, see DAC Support For SQL Server Objects and Versions.
Exporting a DAC requires at least ALTER ANY LOGIN and database scope VIEW DEFINITION permissions, as well as SELECT permissions on sys.sql_expression_dependencies. Exporting a DAC can be done by members of the securityadmin fixed server role who are also members of the database_owner fixed database role in the database from which the DAC is exported. Members of the sysadmin fixed server role or the built-in SQL Server system administrator account named sa can also export a DAC.
On Azure SQL Database you need to grant for each database VIEW DEFINITION and SELECT permission on all tables or on specific tables
Using the Export Data-tier Application Wizard
To Export a DAC Using a Wizard
Connect to the instance of SQL Server, whether on-premise or in SQL Database.
In Object Explorer, expand the node for the instance from which you want to export the DAC.
Right-click the database name.
Click Tasks and then select Export Data-tier Application...
Complete the wizard dialogs:
This page describes the steps for the Export Data-tier Application Wizard.
Do not show this page again. - Click the check box to stop the Introduction page from being displayed in the future.
Next - Proceeds to the Select DAC Package page.
Cancel - Cancels the operation and closes the Wizard.
Export Settings Page
Use this page to specify the location where you want the BACPAC file to be created.
Save to local disk - Creates a BACPAC file in a directory on the local computer. Click Browse... to navigate the local computer, or specify the path in the space provided. The path name must include a file name and the .bacpac extension.
Save to Azure - Creates a BACPAC file in an Azure container. You must connect to an Azure container in order to validate this option. Note that this option also requires that you specify a local directory for the temporary file. Note that the temporary file will be created at the specified location and will remain there after the operation completes.
To specify a subset of tables to export, use the Advanced option.
Use the validation page to review any issues that block the operation. To continue, resolve blocking issues and then click Re-run Validation to ensure that validation is successful.
To continue, click Next.
Use this page to review the specified source and target settings for the operation. To complete the export operation using the specified settings, click Finish. To cancel the export operation and exit the Wizard, click Cancel.
This page displays a progress bar that indicates the status of the operation. To view detailed status, click the View details option.
This page reports the success or failure of the export operation, showing the results of each action. Any action that encountered an error will have a link in the Result column. Click the link to view a report of the error for that action.
Click Finish to close the Wizard.
Using a .Net Framework Application
To export a DAC using the Export() method in a .Net Framework application.
Sql Server Api Example
Create a SMO Server object and set it to the instance that contains the DAC to be exported.
Open a ServerConnection object and connect to the same instance.
Use the Export method of the Microsoft.SqlServer.Management.Dac.DacStore type to export the DAC. Specify the name of the DAC to be exported, and the path to the folder where the export file is to be placed.
Extract a DAC From a Database
By: Ray Barley Updated: 2010-08-27 Comments (3) Related: More >TSQL
I'm looking at the new features in SQL Server 2008 R2 and I see one called a.
Note from the Tasks context menu above that you could register a SQL Server 2008 R2 database as a>
Like the database project in earlier versions of Visual Studio, the SQL Server Data-tier Application is used to organize each individual database object into its own .SQL file. For example to create a table, right click on Tables, then click Add, Table from the context menu and type in the name the table. A new source file will be added to the project with a stubbed out script; e.g.:
Use the text editor to complete the table schema. If you want to create a project from an existing database there are two options available to do that. Right click on the Project in the Solution Explorer and you will see the choices Import Script and Import Data-tier Application. Import Script allows you to process one or more files that contain T-SQL commands to create database objects. Import Data-tier Application will read a DAC package and create the database objects in the project. If you manually add database objects to the project, the import data-tier application will be disabled.
To import the DAC package that we created earlier, select Import Data-tier Application and navigate to the DAC package:
The wizard will continue and create the database objects in the project from the DAC package. The Solution Explorer now shows tables, indexes, etc.:
Microsoft Sql Server Data Tier Application Framework Download 32-bit
Data-Tier Application Project Settings
There are a number of project settings that you can customize to suit your needs. Right click Properties under the Project in Solution Explorer then select Open from the context menu to display the Project Settings:
Note the Name and Version; when you deploy changes make sure to increment the Version. Click Build to display the Build properties:
Sql Job Descriptions
The Visual Studio paradigm is that you create an individual script file for tables, indexes, etc. then perform a Build which creates the DAC package. Specify the name of the DAC package and folder in the above dialog. Click Build Events to display the Build Events properties:
The Pre-build and Post-build event commands are available to specify commands that will be automatically executed when you Build. These commands could be just anything that you need to do right before the Build and right after the Build completes. Click Deploy to view the Deploy properties:
You can enable deployment directly to an instance of SQL Server 2008 R2 by specifying the connection string. Click Code Analysis to view the Code Analysis properties:
Code Analysis provides a number of built-in rules that you can enable for your project. You can specify if violating these rules will be treated as an error.
You can also specify database settings and server selection policies; expand Properties in the Solution Explorer underneath the project. There you will find Database.sqlsettings and ServerSelection.sqlpolicy. Dabtabase.sqlsettings is shown below:
ServerSelection.sqlpolicy is shown below:
The above settings will be stored in the DAC package and enforced on deployment. The Facet properties above allow you to specify things like SQL Server edition, version, etc. When you click a checkbox a dialog will be displayed allowing you to select a value from a dropdown list (e.g. True or False) or enter a value (e.g. a SQL Server major version).
Deploying a Data-Tier Application
There are two steps to deploying your Data-Tier application to an instance of SQL Server 2008 R2. First you right click on the project in Solution Explorer and select Build (or Rebuild) from the context menu. This will create the DAC package in the folder you specified in the Project Build settings dialog. The second step is to deploy the DAC package; you can right click on the project in the Solution Explorer and select Deploy from the context menu or you can deploy with SQL Server Management Studio.
To deploy using the Deploy command in the project you need to specify a connection string for the destination database on the Project Deploy properties page. To deploy using SQL Server Management Studio, navigate to the Management node in Object Explorer then right click on Deploy Data-tier Application as shown below:
The Deploy Data-tier Application wizard will be launched. Select the DAC package to deploy:
Click Next to proceed to the Update Configuration step where you can specify the database name, data file path and log file path:
Click Next to display a summary then click Next again to perform the deployment. You will see output similar to the following on completion:
Note that the database name that is initially created has a globally unique identifier (GUID) appended to it. After the process completes successfully, the database is renamed to what you specified.
Monitoring Data-Tier Applications
There is a new feature in SQL Server 2008 R2 called a Utility Control Point which provides monitoring of database instances and Data-tier applications. I will cover the setup in a future article, but right now I want to give you a preview of what you get for a data-tier application:
The above screen shot was taken from the Utility Explorer in SQL Server 2008 R2 Management Studio. Since I just created the data-tier application there is no data available yet. You get a dashboard view with CPU Utilization, Storage Utilization, Policy Details and Property Details. The only requirement is to run through the Utility Control Point setup process which I will do in a future article.
Updating a Data-Tier Application
After you deploy a data-tier application, you will undoubtedly want to make changes; e.g. add or change tables, stored procedures, views, etc. You can use the Visual Studio 2010 Data-tier project to do this and deploy your changes in the same way we did in the section above. Make your changes and be sure to increment the Version in the Project Settings dialog, then performed a Build (or Rebuild) which creates an updated DAC package. To deploy the update, go to SQL Server Management Studio, right click on the Data-tier application, then select Upgrade Data-tier Application:
The familiar wizard will be displayed; navigate to the DAC package and note that the Version has been incremented:
At a high level the wizard will create a new database, deploy everything in the DAC package to the new database, generate scripts that will copy the data from the current database to the new database, then rename the current and new databases appropriately. This is a very brief overview of the upgrade process; you can get additional details from Upgrading Data-Tier Applications in SQL Server Books on Line. I will be creating a tip focused on upgrade in the near future.
- The Data-tier Application is an interesting new feature in SQL Server 2008 R2 that may be able to save time when deploying and upgrading departmental databases.
- For additional details on data-tier applications take a look at this white paper on MSDN.
- Take a look at the SQL Server 2008 R2 Update for Developers Training Kit (June 2010 Update) for Presentations, Demos, Hands on Labs, and Videos. There is a wealth of material on Data-tier Applications.
- You can download the sample code used in this tip here.
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Article Last Updated: 2010-08-27