The .NET barcode class which is contained in the TBarCode SDK can be integrated seamlessly into MS SQL reporting services. Just a few lines of .NET code are needed to enhance a report with full bar code printing services for linear barcodes, 2D codes and GS1 DataBar symbologies.
Check out the document Printing Barcodes with MS SQL Reporting Services. A sample report including source code is available in the download section of TBarCode (Microsoft Visual Studio required).