in-memory datatable --> c# asp.net MVC4

Does anyone have good examples / articles on "in-memory datatables" for MS SQL 2005 ?

Below is what I want.
  ** 2am DAILY = system runs "Select PartNo from Products" statement and keeps 50,000+ records in memory for easy "AUTO_LOOKUP" via c# asp.net MVC4 textbox
  ** next day at 2am = system runs "Select...." again, refreshing anything that changed
finance_teacherAsked:
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Christopher KileConnect With a Mentor Commented:
I use table variables all the time, but they do not persist beyond the life of the procedure in which I declare them, which would make them useless for your purpose.

TThis article is one of many that debunks the myth that table variables are purely memory tables.   However, a global temporary table would work as long as you made all your calls to the GTT within one session, as that is the scope of a global temporary table.

For an actual in-memory table, you''d have to build a C# assembly with special functions that built a structure in memory and returned the appropriate recordset when a request is sent to it.  If you're interested, I might be able to help with that.
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