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complex Query (working out totals)
Hi,
I would like help with a quite complex SQL statement. It involves 2 tables.
The first table (table1) look like this:
table1
identifier Req Parent
ID-001 5 FM
ID-002 4 FM
ID-003 12 FM
ID-004 21 PL
ID-005 40 FM
ID-006 1 PL
ID-007 10 PL
ID-008 8 FM
The second table (table2) looks like this
identifier QTY
ID-001 2
ID-001 4
ID-001 1
ID-002 30
ID-004 40
ID-002 1
ID-007 10
ID-008 8
I’m trying to produce a recordset that could populate a list control with the data that would result from following these steps:
1. Select table1.identifiers where table1.Parent = FM.
2. For each row in table2 search table.identifer for a matching record, then add up the table2.QTY values for resulting records found
3. Zero should added where no values can be found
Given the example above it should produce the following results:
identifier Req qty
ID-001 5 7
ID-002 4 31
ID-003 12 0
ID-005 40 0
ID-008 8 8
Could this be done?
I would like help with a quite complex SQL statement. It involves 2 tables.
The first table (table1) look like this:
table1
identifier Req Parent
ID-001 5 FM
ID-002 4 FM
ID-003 12 FM
ID-004 21 PL
ID-005 40 FM
ID-006 1 PL
ID-007 10 PL
ID-008 8 FM
The second table (table2) looks like this
identifier QTY
ID-001 2
ID-001 4
ID-001 1
ID-002 30
ID-004 40
ID-002 1
ID-007 10
ID-008 8
I’m trying to produce a recordset that could populate a list control with the data that would result from following these steps:
1. Select table1.identifiers where table1.Parent = FM.
2. For each row in table2 search table.identifer for a matching record, then add up the table2.QTY values for resulting records found
3. Zero should added where no values can be found
Given the example above it should produce the following results:
identifier Req qty
ID-001 5 7
ID-002 4 31
ID-003 12 0
ID-005 40 0
ID-008 8 8
Could this be done?
Who is Participating?
actually, that will give nulls for id3 and id5 so modify the sum(b.qty) part to:
isnull(sum(b.qty), 0) as qty
isnull(sum(b.qty), 0) as qty
is this in access?
SELECT tbl1.identifier, tbl1.req, nz(Sum(tbl2.qty),0) AS Totqty
FROM tbl1 LEFT JOIN tbl2 ON tbl1.identifier = tbl2.identifier
WHERE tbl1.parent="fm"
GROUP BY tbl1.identifier, tbl1.req;
SELECT tbl1.identifier, tbl1.req, nz(Sum(tbl2.qty),0) AS Totqty
FROM tbl1 LEFT JOIN tbl2 ON tbl1.identifier = tbl2.identifier
WHERE tbl1.parent="fm"
GROUP BY tbl1.identifier, tbl1.req;
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from table1 as a
left join table2 as b
on a.identifier = b.identifier
group by a.identifier, a.req