Reconcile closing units by warehouse region

#4 · 4 of 5Free sample

Exercises (5)

Instructions

Closing units equal opening_units plus the sum of every signed quantity_change in inventory_movements. Calculate closing units per warehouse region.

Return three columns: region, opening_units, and . Order by .

closing_units

region

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Tables

7 tables · 41 columns

suppliers5 cols

supplier_idTEXT PRIMARY KEY
supplier_nameTEXT NOT NULL
country_codeTEXT NOT NULL
lead_time_daysINTEGER NOT NULL
reliability_scoreREAL NOT NULL

products6 cols

product_idTEXT PRIMARY KEY
supplier_idTEXT NOT NULL
skuTEXT NOT NULL
categoryTEXT NOT NULL
unit_costREAL NOT NULL
reorder_pointINTEGER NOT NULL

warehouses4 cols

warehouse_idTEXT PRIMARY KEY
warehouse_nameTEXT NOT NULL
regionTEXT NOT NULL
capacity_unitsINTEGER NOT NULL

inventory_opening_balances5 cols

opening_balance_idTEXT PRIMARY KEY
product_idTEXT NOT NULL
warehouse_idTEXT NOT NULL
balance_dateTEXT NOT NULL
opening_unitsINTEGER NOT NULL

purchase_orders7 cols

purchase_order_idTEXT PRIMARY KEY
supplier_idTEXT NOT NULL
warehouse_idTEXT NOT NULL
ordered_atTEXT NOT NULL
expected_atTEXT NOT NULL
received_atTEXT
statusTEXT NOT NULL

purchase_order_lines6 cols

purchase_order_line_idTEXT PRIMARY KEY
purchase_order_idTEXT NOT NULL
product_idTEXT NOT NULL
quantity_orderedINTEGER NOT NULL
quantity_receivedINTEGER NOT NULL
unit_costREAL NOT NULL

inventory_movements8 cols

movement_idTEXT PRIMARY KEY
product_idTEXT NOT NULL
warehouse_idTEXT NOT NULL
movement_atTEXT NOT NULL
movement_typeTEXT NOT NULL
quantity_changeINTEGER NOT NULL
purchase_order_line_idTEXT
transfer_idTEXT

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