PartId     PartNo  SerialNo     Sequence
1          AS345   ANB-121             1
2          AS345   ANB-122             2
3          AS345   ANB-123             3
4          AS345   ANB-124             4
5          A34SF   1212544             1
6          B21AC   ANB-A1              1
7          B21AC   ANB-A2              2
8          ANG34   ANG34               1

From the above set the query should return rows 5 and 8 because those partnumber/serialno combinations only appear once.







>>I have a table of part information. The combination of PartNo and SerialNo make the row unique. There is a Sequence column.
>>I want to get back all records where there is only one record for PartNo/SerialNo combination. I'm not sure what the syntax
>>for this query is. Can someone help?
>
>Not sure what you want, could you please post some data and desired result from it?