Datasource for SQL Queries

Question

Hi,
SQL Server best practices indicates the use of Windows Authentication instead of Mixed Mode.
In this case, if you need to create reports that connect to the database,you need to add the users accessing the data source to the sql server security.
For reports that show error logs and table contents do you create a specific domain account for SQL queries and then specify it on the data source?
Thank you

Answer 1

Hi Pedro,
A report server uses credentials to connect to external data sources that provide content to reports or recipient information to a data-driven subscription. You can specify credentials that use Windows Authentication, database authentication, no authentication,
or custom authentication. When sending a connection request over the network, the report server will either impersonate a user account or the unattended execution account. For more information about the security context under which a connection request is
made, see
Data Source Configuration and Network Connections further on in this topic.
The network environment determines the kinds of connections you can support. By default, when you create an datasoource the credential is "Windows Authentication(Windows integrated security)", as you know, the user must has permission to the server
and database.
Each user must have a Windows account. It can be a local account (i.e., an account on the report server) or a trusted domain account. The account must be added as an allowed user to the report server either individually or as part of a group. Furthermore,
the client application must support Windows integrated security.
More details information please reference to below article:
Understanding SQL Server Reporting Services Authentication
Specify Credential and Connection Information for Report Data Sources
If you still have any problem, please feel free to ask.
Regards,
Vicky Liu
Vicky Liu
TechNet Community Support