Question

I want to retrieve the last 100 inserted records in sql server 2008.

Please correct my code.
Pkey in the table testContext.testDetailRecords is an identity column.

var pkeys = (from tests in testContext.testDetailRecords
                         where tests.Pkey > (select max(tests.Pkey)-100 from testContext.testDetailRecords))
                                select tests.Pkey).ToList();

Answer 1

How about

var pkeys = testContext.testDetailRecords
                 .OrderByDescending(x => x.PKey)
                 .Take(100)
                 .Select(x => x.PKey);

This should roughly translate to SQL

SELECT TOP 100 PKey
FROM testDetailRecords
ORDER BY PKey DESC