Using an array in conditional summation with grouping - sql

Question

I have the sql query thats work fine
SELECT
CAST(L.CreationUtcDateTime AS DATE),
SUM(L.Profit),
SUM(CASE WHEN (L.Network = 0 OR L.Network = 1) THEN L.Profit ELSE 0 END),
SUM(CASE WHEN (L.Network != 0 AND L.Network != 1) THEN L.Profit ELSE 0 END)
FROM
[dbo].[Leads] L WITH (NOLOCK)
LEFT JOIN [dbo].[Transactions] S WITH (NOLOCK) ON L.TransactionId = S.Id
GROUP BY
CAST(L.CreationUtcDateTime AS DATE);
I need to make it more generic by using variables instead of hard-coded constants.
I changed the query to:
DECLARE #matchNetworks TABLE (id int)
INSERT #matchNetworks(id) VALUES (0),(1)
SELECT
CAST(L.CreationUtcDateTime AS DATE),
SUM(L.Profit),
SUM(CASE WHEN (L.Network in (SELECT ID from #matchNetworks)) THEN L.Profit ELSE 0 END),
SUM(CASE WHEN (L.Network not in (SELECT ID from #matchNetworks)) THEN L.Profit ELSE 0 END)
FROM
[dbo].[Leads] L WITH (NOLOCK)
LEFT JOIN [dbo].[Transactions] S WITH (NOLOCK) ON L.TransactionId = S.Id
GROUP BY
CAST(L.CreationUtcDateTime AS DATE);
And now i have an error:
Cannot perform an aggregate function on an expression containing an aggregate or a subquery.
How can I use the predefined array of network ids in my query to avoid an error?

Answer 1

Move the comparison to the FROM clause using a LEFT JOIN:
SELECT CAST(L.CreationUtcDateTime AS DATE),
SUM(L.Profit),
SUM(CASE WHEN mn.ID IS NOT NULL THEN L.Profit ELSE 0 END),
SUM(CASE WHEN mn.ID IS NULL THEN L.Profit ELSE 0 END)
FROM [dbo].[Leads] L LEFT JOIN
[dbo].[Transactions] S
ON L.TransactionId = S.Id LEFT JOIN
#matchNetworks mn
ON mn.ID = l.Network
GROUP BY CAST(L.CreationUtcDateTime AS DATE);