One basic concept to understand about SQL Server is that of catalog views, which are effectively database tables (catalogs in this case) that display system-wide information about the SQL Server Database Engine. All catalog views are accessed via a SELECT SQL statement FROM a specific catalog within the sys. namespace. For example, the following statement can be used to view information about all database tables in the system via the sys.tables catalog: SELECT * FROM sys.tables.
Mental disorders were one of the five most costly conditions in the United States in 2006, with expenditures at $57.5 billion. Over 8.9 million persons have co-occurring disorders â that is, they have both a mental and substance use disorder.
How Many People in the United States Have a Disability? An estimated 48.9 million people, or 19.4% of the non-institutionalized civilians, have a disability. An estimated 24.1 million people have a severe disability. An estimated 34.2 million people, or 17.5%, have a functional limitation.