I have a table [Productos] with a column “ID product” Number, and a colum “Uni. Compra” number.
I have a table [Detalles] with a column “ID product” Ref and a colum “Cantidad” Number
I want in table [Productos] column “Uni. Compra” to get SUM of “Cantidad” from the other table but I get this error:
Cannot compare List with Number
What am I doing wrong?
Solved! Go to Solution.
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