Introduction -. On March 13, 2013, the Centers for Medicare & Medicaid Services (CMS) concurrently issued CMS Ruling Number CMS-1455-R (the Administratorâs Ruling) and a proposed rule, âPart B Inpatient Billing in Hospitalsâ (the Proposed Rule).
Topics covered in this Lesson: XRefs (External Reference Files in AutoCAD) An XRef is an âexternal reference' to another AutoCAD drawing file. One file can reference many other files and display them as if they were one. These are used in larger projects for many reasons: They keep the file sizes down.
SQL Server Master Database File (MDF/.mdf) Overview. An MDF (Master Database File) file is the primary database file of Microsoft SQL Server with an extension .mdf, which contains the data as well as schema. We can create more than one data file with .mdf file extension for a database whether it does exist in a filegroup or by generating a new filegroup. Database Files.