直接用SQL写出带扩展数量的BOM多级清单。
某项目需要，不能写函数，必须直接用SQL，性能差点没关系。
客户BOM有副产品，也有为0的情况，也就是组件数量有正、负、0，所以情况稍微麻烦了点
只用SQL的原因可能为：
因为没有权限去修改和定义程序。
我们唯一能用的手段就是Discover Report，因此需要用SQL来实现多级BOM展开。
代码
1 with t as(
2 SELECT boms.organization_id,
3 boms.organization_id || '>' || connect_by_root assembly_number || sys_connect_by_path(boms.component_number, '>') code_chain,
4 boms.organization_id || '>' || connect_by_root bill_sequence_id || sys_connect_by_path(boms.component_sequence_id, '>') id_chain,
5 connect_by_root assembly_number assembly_number,
6 boms.assembly_description,
7 LEVEL bom_level,
8 boms.component_number component_number,
9 lpad(' ', (LEVEL - 1) * 2, ' ') || boms.component_number ind_component_number,
10 boms.component_description,
11 boms.primary_uom_code uom,
12 boms.component_quantity component_quantity,
13 boms.planning_factor,
14 boms.component_yield_factor,
15 boms.effectivity_date
16 FROM (SELECT bom1.organization_id,
17 bom1.assembly_item_id,
18 mst1.segment1 assembly_number,
19 mst1.description assembly_description,
20 bom1.bill_sequence_id bill_sequence_id,
21 bom1.alternate_bom_designator assembly_alternate,
22 bomc.component_sequence_id,
23 bomc.component_item_id,
24 mstc.segment1 component_number,
25 mstc.description component_description,
26 mstc.primary_uom_code,
27 bomc.component_quantity,
28 bomc.effectivity_date,
29 bomc.planning_factor,
30 bomc.component_yield_factor,
31 bomc.supply_subinventory
32 FROM apps.bom_bill_of_materials bom1,
33 inv.mtl_system_items_b mst1,
34 apps.bom_inventory_components bomc,
35 inv.mtl_system_items_b mstc
36 WHERE bom1.organization_id = mst1.organization_id
37 AND bom1.assembly_item_id = mst1.inventory_item_id
38 AND bom1.bill_sequence_id = bomc.bill_sequence_id
39 AND bom1.organization_id = mstc.organization_id
40 AND bomc.component_item_id = mstc.inventory_item_id
41 --Item
42 AND mst1.bom_enabled_flag = 'Y'
43 AND mst1.bom_item_type IN (1, 2, 3, 4) --Dependent
44 --BOM Header
45 AND bom1.assembly_type = 1 --1 Manufature,2 ENG
46 AND nvl(bom1.effectivity_control, 1) <= 3
47 --BOM Line
48 AND nvl(bomc.disable_date, SYSDATE) >= SYSDATE
49 AND bomc.effectivity_date <= SYSDATE
50 AND bomc.implementation_date IS NOT NULL
51 AND nvl(bomc.eco_for_production, 2) = 2
52 --Filters
53 AND mst1.organization_id = 207
54 AND bom1.alternate_bom_designator IS NULL) boms
55 CONNECT BY PRIOR boms.organization_id = boms.organization_id
56 AND PRIOR boms.component_item_id = boms.assembly_item_id
57 )
58 SELECT t1.organization_id,
59 t1.code_chain,
60 t1.assembly_number,
61 t1.assembly_description,
62 t1.bom_level,
63 t1.component_number,
64 t1.component_description,
65 t1.uom,
66 t1.ind_component_number,
67 t1.id_chain,
68 t1.component_quantity,
69 (SELECT power(10,
70 SUM(CASE
71 WHEN t2.component_quantity = 0 THEN
72 0
73 ELSE
74 log(10, abs(t2.component_quantity))
75 END)) * decode(MOD(COUNT(decode(sign(t2.component_quantity), -1, 1)), 2), 1, -1, 1) *
76 (CASE
77 WHEN COUNT(decode(t2.component_quantity, 0, 1)) >= 1 THEN
78 0
79 ELSE
80 1
81 END)
82 FROM t t2
83 WHERE t1.id_chain LIKE t2.id_chain || '%') extended_quantity,
84 t1.planning_factor,
85 t1.component_yield_factor,
86 t1.effectivity_date
87 FROM t t1
88 ORDER BY t1.id_chain;
2 SELECT boms.organization_id,
3 boms.organization_id || '>' || connect_by_root assembly_number || sys_connect_by_path(boms.component_number, '>') code_chain,
4 boms.organization_id || '>' || connect_by_root bill_sequence_id || sys_connect_by_path(boms.component_sequence_id, '>') id_chain,
5 connect_by_root assembly_number assembly_number,
6 boms.assembly_description,
7 LEVEL bom_level,
8 boms.component_number component_number,
9 lpad(' ', (LEVEL - 1) * 2, ' ') || boms.component_number ind_component_number,
10 boms.component_description,
11 boms.primary_uom_code uom,
12 boms.component_quantity component_quantity,
13 boms.planning_factor,
14 boms.component_yield_factor,
15 boms.effectivity_date
16 FROM (SELECT bom1.organization_id,
17 bom1.assembly_item_id,
18 mst1.segment1 assembly_number,
19 mst1.description assembly_description,
20 bom1.bill_sequence_id bill_sequence_id,
21 bom1.alternate_bom_designator assembly_alternate,
22 bomc.component_sequence_id,
23 bomc.component_item_id,
24 mstc.segment1 component_number,
25 mstc.description component_description,
26 mstc.primary_uom_code,
27 bomc.component_quantity,
28 bomc.effectivity_date,
29 bomc.planning_factor,
30 bomc.component_yield_factor,
31 bomc.supply_subinventory
32 FROM apps.bom_bill_of_materials bom1,
33 inv.mtl_system_items_b mst1,
34 apps.bom_inventory_components bomc,
35 inv.mtl_system_items_b mstc
36 WHERE bom1.organization_id = mst1.organization_id
37 AND bom1.assembly_item_id = mst1.inventory_item_id
38 AND bom1.bill_sequence_id = bomc.bill_sequence_id
39 AND bom1.organization_id = mstc.organization_id
40 AND bomc.component_item_id = mstc.inventory_item_id
41 --Item
42 AND mst1.bom_enabled_flag = 'Y'
43 AND mst1.bom_item_type IN (1, 2, 3, 4) --Dependent
44 --BOM Header
45 AND bom1.assembly_type = 1 --1 Manufature,2 ENG
46 AND nvl(bom1.effectivity_control, 1) <= 3
47 --BOM Line
48 AND nvl(bomc.disable_date, SYSDATE) >= SYSDATE
49 AND bomc.effectivity_date <= SYSDATE
50 AND bomc.implementation_date IS NOT NULL
51 AND nvl(bomc.eco_for_production, 2) = 2
52 --Filters
53 AND mst1.organization_id = 207
54 AND bom1.alternate_bom_designator IS NULL) boms
55 CONNECT BY PRIOR boms.organization_id = boms.organization_id
56 AND PRIOR boms.component_item_id = boms.assembly_item_id
57 )
58 SELECT t1.organization_id,
59 t1.code_chain,
60 t1.assembly_number,
61 t1.assembly_description,
62 t1.bom_level,
63 t1.component_number,
64 t1.component_description,
65 t1.uom,
66 t1.ind_component_number,
67 t1.id_chain,
68 t1.component_quantity,
69 (SELECT power(10,
70 SUM(CASE
71 WHEN t2.component_quantity = 0 THEN
72 0
73 ELSE
74 log(10, abs(t2.component_quantity))
75 END)) * decode(MOD(COUNT(decode(sign(t2.component_quantity), -1, 1)), 2), 1, -1, 1) *
76 (CASE
77 WHEN COUNT(decode(t2.component_quantity, 0, 1)) >= 1 THEN
78 0
79 ELSE
80 1
81 END)
82 FROM t t2
83 WHERE t1.id_chain LIKE t2.id_chain || '%') extended_quantity,
84 t1.planning_factor,
85 t1.component_yield_factor,
86 t1.effectivity_date
87 FROM t t1
88 ORDER BY t1.id_chain;
转载：http://bbs.itjaj.com/thread-2488-1-8.html
来源：https://www.cnblogs.com/benio/archive/2010/11/28/1890287.html