c# - Simple Linq to SQL Compiled.query for count -


i have function database count every minute , compile query so. table being written (and deleted from) multiple sources , want gather results on number of unique rows in use throughout day.

my normal linq query is:

var query =     result in dcontext.constantly_changing_table     select result.used_transaction_id;   // i'm looking count of unique used_transaction_id's  console.writeline((query.distinct()).count());

how turn compiled query? background. i've been doing linq week , can write complicated join statements it. day 1 on compiled queries , i'm bit lost. i'm not interested in fact may (or may not ) improve performance on query, want see compiled query works can build on.


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