I am looking for a way to make the following select statement work. The problem is that I cannot use the field invno because I get the following error "is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause" Is there any other way to write this?

The first select state works fine. However, in this case I need to look at the first character of the invno to determine the company and that will then be the first part of getting the LEVEL.

This works perfectly
select Specno + '-' + spcompany + ' / ' + Project + ' / ' + spcontact as Order1, Count(*) as OrderCount,
SUM(QtyShp) AS TotQty, Level=
CASE
WHEN SUM(QtyShp) < 250 THEN 'A'
WHEN SUM(QtyShp) < 500 THEN 'B'
WHEN SUM(QtyShp) < 1000 THEN 'C'
WHEN SUM(QtyShp) < 5000 THEN 'D'
WHEN SUM(QtyShp) < 10000 THEN 'E'
ELSE 'F'
END
From SBTInvoice
where salesmn = 'aparker'
Group by Specno + '-' + spcompany + ' / ' + Project + ' / ' + spcontact
This is the statement I want to work but it does not.
select Specno + '-' + spcompany + ' / ' + Project + ' / ' + spcontact as Order1, Count(*) as OrderCount,
SUM(QtyShp) AS TotQty, Level=
CASE
WHEN LEFT(invno,1) = '1' OR LEFT(invno,1) = '2' THEN
CASE
WHEN SUM(QtyShp) < 250 THEN 'A'
WHEN SUM(QtyShp) < 500 THEN 'B'
WHEN SUM(QtyShp) < 1000 THEN 'C'
WHEN SUM(QtyShp) < 5000 THEN 'D'
WHEN SUM(QtyShp) < 10000 THEN 'E'
ELSE 'F'
END
ELSE
CASE
WHEN SUM(QtyShp) < 25 THEN 'A'
WHEN SUM(QtyShp) < 50 THEN 'B'
WHEN SUM(QtyShp) < 100 THEN 'C'
WHEN SUM(QtyShp) < 500 THEN 'D'
WHEN SUM(QtyShp) < 1000 THEN 'E'
ELSE 'F'
END
END
From SBTInvoice
where salesmn = 'aparker'
Group by Specno + '-' + spcompany + ' / ' + Project + ' / ' + spcontact

The problem is that you want to use the INVNO field as part of the selection expression, which operates on the result of the table query. The table query is not returning the INVNO field, as it is hidden

The problem is that you want to use the INVNO field as part of the selection expression, which operates on the result of the table query. The table query is not returning the INVNO field, as it is hidden by the group by clause. To resolve this, you want to have the INVNO field available to the selection expression, which means that it needs to be returned by the group by expression. Simply add ", invno" to the end of the group by expression.

select Specno + '-' + spcompany + ' / ' + Project + ' / ' + spcontact as Order1, Count(*) as OrderCount,
SUM(QtyShp) AS TotQty, Level=
CASE
WHEN LEFT(invno,1) = '1' OR LEFT(invno,1) = '2' THEN
CASE
WHEN SUM(QtyShp) < 250 THEN 'A'
WHEN SUM(QtyShp) < 500 THEN 'B'
WHEN SUM(QtyShp) < 1000 THEN 'C'
WHEN SUM(QtyShp) < 5000 THEN 'D'
WHEN SUM(QtyShp) < 10000 THEN 'E'
ELSE 'F'
END
ELSE
CASE
WHEN SUM(QtyShp) < 25 THEN 'A'
WHEN SUM(QtyShp) < 50 THEN 'B'
WHEN SUM(QtyShp) < 100 THEN 'C'
WHEN SUM(QtyShp) < 500 THEN 'D'
WHEN SUM(QtyShp) < 1000 THEN 'E'
ELSE 'F'
END
END
From SBTInvoice
where salesmn = 'aparker'
Group by Specno + '-' + spcompany + ' / ' + Project + ' / ' + spcontact, invno

Split the second query into two Select statements with a where clause to distinguish between the two sets of data, and use a JOIN to concatenate the two results.

CASE
WHEN (LEFT(invno,1) IN ('1','2') AND SUM(QtyShp) < 250)
OR (LEFT(invno,1) > '2' AND SUM(QtyShp) < 25) THEN 'A'
WHEN (LEFT(invno,1) IN ('1','2') AND SUM(QtyShp) < 500)
OR (LEFT(invno,1) > '2' AND SUM(QtyShp) < 50) THEN 'B'
WHEN (LEFT(invno,1) IN ('1','2') AND SUM(QtyShp) < 1000)
OR (LEFT(invno,1) > '2' AND SUM(QtyShp) < 100) THEN 'C'
WHEN (LEFT(invno,1) IN ('1','2') AND SUM(QtyShp) < 5000)
OR (LEFT(invno,1) > '2' AND SUM(QtyShp) < 500) THEN 'D'
WHEN (LEFT(invno,1) IN ('1','2') AND SUM(QtyShp) < 10000)
OR (LEFT(invno,1) > '2' AND SUM(QtyShp) < 1000) THEN 'E'
ELSE 'F'
END

I changed invno in the group by to left(invno,1) and it worked perfectly.

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Composite queries are used to retrieve the results from joining multiple queries after applying any filters. UNION, INTERSECT, MINUS, and UNION ALL are some of the operators used to get certain desired results.