Question

I have two tables as shown below

EmpMaster

empid firstName  lastName  lstatus
1       Mark      Rowen      1
2       John      Griffin    1
3       Derick    Rose       1


EmpPers
----------
empPersSeq  empID   perTypeID   PersTypeValue
1             1        1            Good
2             1        2            Fair 
3             1        3            Good 
4             2        1            Fair
5             2        2            Fair
6             2        2            Fair

How do get list of all EmpIds from empMaster that doesnt have perTypeID=3 records in EmpPers Table?

Thanks in advance

Answer 1

I believe a NOT EXISTS would do the trick:

SELECT 
em.empid
FROM EmpMaster em
WHERE NOT EXISTS (
    SELECT NULL 
    FROM EmpPers 
    WHERE empID = em.empid AND perTypeID = 3
);