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Please help me with this question!!
The table 'A' has the code and the sale date of an item. The table 'B' has all the input item in inventory and its cost.
I need to return the average cost of an items between a date interval.
How can I handle when i need to work with date interval?
In the following example I know that the syntax is not correct. Just want to transmit the intention.
Sum([VL_TOTAL_ITEM_NF])/ Sum([QT_ITEM_ESTOQUE] * [QT_CONV_ESTOQUE_CONSUMO]) as [Average Cost]
Where [INPUT DATE] <= [SALE DATE]
and [INPUT DATE] >= [SALE DATE - 180];