Question

I have two tables. Table2 is referencing Table1 with EmployeeID. I want to select records from Table1 whose EmployeeID is not present in Table2. I have written following SQL query in SQL Server2008 but it does not show required result:

SELECT distinct e1.EmployeeID 
FROM   Employee as e1, EmployeeTimeIn as e2
WHERE  e1.EmployeeID <> e2.EID;

Please help.

Answer 1

use LEFT JOIN and IS NULL

SELECT  a.*
FROM    Table1 a
        LEFT JOIN Table2 b
            ON a.EmployeeID = b.EmployeeID
WHERE   b.EmployeeID IS NULL

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