How about:
SELECT * FROM tableA
UNION
SELECT * FROM tableB;
The UNION versus UNION ALL will eliminate any duplicate records.
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Question
How do I include left over records from the source tables in an Access database after a query "merge"?
I have two tables in Access that I am trying to merge. I have a query that selects records from both tables when a related field is equal and places the results in a new table. But, I also want to include the records that don't match in that new table as well. If records from Table A match records in Table B, join the results, but if they don't, still include them in the resulting table.
Is there an easier way to do this than going through Tables A and B by hand?
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Answers
I'll clarify a bit lol.
I have Table A which has some descriptions and extended information for particular items. Table B has more information which I want to join using related Item ID's (the two tables were created from two excel worksheets). So, if the Item ID's match in Table A and Table B, join all fields relative to the Item ID. And, in the event that they don't match, still include those unmatched records in Table C.
If you want an example, I can copy the structure and include some sample data.
Aside from ItemID, the fields in TableB are different from those in TableA? So if there are 5 fields in TableA and 10 in TableB, Then TableC will have 5+10 fields(repeating the ItemID), the first several of which will all be filled and the last part containing the 10 fields from TableB for which there is no ItemID match in TableA - correct?
It might be a good idea to give us the sample structure(s) and data.
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by: mvasilevskyPosted on 2009-07-26 at 11:39:54ID: 24946877
Not sure I'm understanding but it sounds like you want all records from both tables in a new table?
INSERT INTO TableC ( Field1,Field2,Field3)
SELECT Field1, Field2, Field3
FROM TableA; UNION SELECT Field1, Field2, Field3
FROM TableB;
Or if you have the join query:
INSERT INTO TableC (Field1,Field2,Field3)
SELECT Field1, Field2, Field3
FROM TableA INNER JOIN TableB on Field4
you could get the not matching records with (assuming Field1 is your primary key field):
INSERT INTO TableC (Field1,Field2,Field3)
SELECT Field1, Field2, Field3
FORM TableA
WHERE Field1 NOT IN (SELECT Field1, Field2, Field3
FORM TableA INNER JOIN TableB on Field4); UNION SELECT Field1, Field2, Field3
FORM TableB
WHERE Field1 NOT IN (SELECT Field1, Field2, Field3
FORM TableA INNER JOIN TableB on Field4);
The UNIONs assume TableA and TableB have the same fields.
HTH,
mv