带有ApplicationIntent ReadOnly的Azure SQL Server弹性查询

Question

I'm using SQL Server Management Studio v18.2* to create an Elastic Query to different Azure databases ( horizontal partitioning ). The access to the databases must contain the flag ApplicationIntent=ReadOnly .

I've created the master key and the scoped credentials:

CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password'

CREATE DATABASE SCOPED CREDENTIAL stg_credentials
WITH IDENTITY = 'user',
SECRET = 'pass';

And then, I need to create the external data source . According to the documentation, the syntax is:

CREATE EXTERNAL DATA SOURCE <data_source_name>  
WITH
(    LOCATION                  = '<prefix>://<path>[:<port>]'
[,   CONNECTION_OPTIONS        = '<name_value_pairs>']
[,   CREDENTIAL                = <credential_name> ]
[,   PUSHDOWN                  = ON | OFF]
[,   TYPE                      = HADOOP | BLOB_STORAGE ]
[,   RESOURCE_MANAGER_LOCATION = '<resource_manager>[:<port>]'
)
[;]

I'm using the following query:

CREATE EXTERNAL DATA SOURCE stg_1 WITH
    (TYPE = RDBMS, LOCATION = 'myserver.database.windows.net', CONNECTION_OPTIONS = 'ApplicationIntent=ReadOnly', DATABASE_NAME = 'mydatabase', CREDENTIAL = stg_credentials);

But when executing it, I get the following error, although I'm using the right syntax for that option.

Incorrect syntax near 'CONNECTION_OPTIONS'.

Do I need to install any extra components to the SSMS? Is there anything wrong with the syntax? Any help would be greatly appreciated.

* SQL Server Management Studio 15.0.18142.0 Microsoft Analysis Services Client Tools 15.0.1389.0 Microsoft Data Access Components (MDAC) 10.0.17763.1

Answer 1

请安装最新版本的SQL Server Management Studio（ v18.2 ），以获得所有Azure SQL Database PaaS产品的最佳体验。

Answer 2

Query across Azure SQL databases completely in T-SQL. This allows for read-only querying of remote databases and provides an option for current on-premises SQL Server customers to migrate applications using three- and four-part names or linked server to SQL DB.

And for Azure SQL database, it doesn't have the Argument "CONNECTION_OPTIONS".

You can find this from the document you have provided: Azure SQL Database .

You also can reference this document Get started with cross-database queries (vertical partitioning) (preview) . It also give the examples.

External data sources:

CREATE EXTERNAL DATA SOURCE MyElasticDBQueryDataSrc WITH
    (TYPE = RDBMS,
    LOCATION = '<server_name>.database.windows.net',
    DATABASE_NAME = 'Customers',
    CREDENTIAL = ElasticDBQueryCred,
) ;

Update:

Elastic Query Preview limitations :

Elastic query works with Azure SQL Database only. You cannot use it for querying on-premises SQL Server, or SQL Server in a VM.

So you can not connect to a SQL Server on a virtual machine with Elastic Query.

Hope this helps.