我有以下表格
1. 材料单位。
id | Unit_name
1 | Nos.
2 | lts
2. 材料表。
id | Material_name
1 | bricks
2 | Cement
3. Grn表。
id | material_id | qty | unit
1 | 1 | 100 | 1
2 | 2 | 500 | 1
3 | 2 | 100 | 1
4 | 1 | 200 | 1
4. 消耗表。
id | material_id | qty | unit
1 | 1 | 50 | 1
2 | 2 | 100 | 1
预期结果如下。
Material Name | Unit | Total Qty | Total Consumed Qty | Stock
Bricks | Nos. | 300 | 50 | 250
Cement | Nos. | 600 | 100 | 500
因此,在上述结果中,总数量将从Grn表中获取,总消耗数量将从Consumption表中获取,而库存是两者的差额,应按物料名称分组。
下面的查询只得到总数量的结果,需要你的帮助才能得到消耗数量。
I am new to SQL and did tried but stuck at this point and need help.
Select sm.material_name as 'Material Name', mu.unit_name as 'Unit Name' , sum(g.qty) as 'Total Qty' from grn g
JOIN material_table.sm ON g.material_id = sm.id
JOIN material_unit.mu ON g.unit = mu.id
GROUP by material_name