FIX: The .csv file contains field separators when you export a report that has a tablix that has no data in SSRS 2012 or SSRS 2014

Assume that you have a Microsoft SQL Server 2012 Reporting Services (SSRS 2012) or an SSRS 2014 report that has a tablix that will return an empty dataset, and you set the "NoHeader" attribute in the RsReportServer.config file for CSV rendering. In this situation, when you export the report to CSV format, the .csv file contains field separators.

Note The expected behavior is that the CSV output is blank as it was in the earlier versions of SSRS.
This issue was first fixed in the following cumulative update of SQL Server.

Cumulative Update 1 for SQL Server 2014 SP1

Cumulative Update 6 for SQL Server 2014

Cumulative Update 3 for SQL Server 2012 SP2

About cumulative updates for SQL Server

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Article ID: 3001713 - Last Review: 06/22/2015 13:52:00 - Revision: 3.0

Microsoft SQL Server 2012 Service Pack 2, SQL Server 2012 Reporting Services, Microsoft SQL Server 2014 Service Pack 1, SQL Server 2014 Reporting Services

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