Question

希望你能提供帮助。

我们有一个显示网格的应用。我们可以使用我正在努力的子查询向网格添加自定义字段。主网格查询看起来像这样。

SELECT TOP 300000
'' AS alloc_status
,'' AS stock_status
,wo_description
,wo_quantity
,wo_number
,wo_pwos_id
,vad_variant_code
,oh_order_number
,oh_datetime
,ohd_dm_id
,ohd_customer_name
,vad_description AS vad_description_Condition
,vad_variant_code AS vad_variant_code_Condition
,wo_id AS key_id
FROM works_order
LEFT OUTER JOIN works_order_analysis
ON works_order_analysis.woa_wo_id = works_order.wo_id
LEFT OUTER JOIN works_order_process
ON works_order_process.wop_id = works_order.wo_current_wop_id
LEFT OUTER JOIN works_order_process_analysis
ON works_order_process_analysis.wopa_wop_id = works_order_process.wop_id
INNER JOIN variant_detail
ON variant_detail.vad_id = works_order.wo_vad_id
LEFT OUTER JOIN works_order_total
ON works_order.wo_id = works_order_total.wot_wo_id
LEFT JOIN order_line_item
ON oli_id = wo_oli_id
LEFT JOIN order_header
ON oh_id = oli_oh_id
LEFT JOIN job_number
ON jn_id = wo_jn_id
LEFT JOIN works_order_process_subcontract_analysis
ON wopsa_wop_id = wop_id
LEFT JOIN order_header_detail
ON ohd_oh_id = oh_id
LEFT JOIN customer_detail
ON cd_id = oh_cd_id
WHERE ((cd_ow_account = 'NOTHS')
AND (wo_pwos_id = 1)
OR (cd_ow_account = 'EBAY')
AND (wo_pwos_id = 1)
OR (cd_ow_account = '4008')
AND (wo_pwos_id = 1)
OR (cd_ow_account = 'TRUSCA')
AND (wo_pwos_id = 1))
AND ((wo_required_datetime <= '2016-12-24 23:59:59'
OR wo_required_datetime IS NULL)
AND (wo_wos_id <> 4)
AND (wo_kit = 0))

子查询基本上是提供一个列，该列查看销售订单并返回该订单中的行数。当我这样做时，我得到以下内容：

检索数据时出现问题：子查询返回的值超过1。子查询遵循=，！=，＆lt;时，不允许这样做。等等或者当子查询用作表达式时

以下是使用子查询完成的查询。如果有人能提供帮助那将是惊人的

SELECT TOP 300000
'' AS alloc_status
,'' AS stock_status
,wo_description
,wo_quantity
,wo_number
,wo_pwos_id
,vad_variant_code
,oh_order_number
,oh_datetime
,ohd_dm_id
,ohd_customer_name
,(SELECT
COUNT(order_line_item.oli_id) AS 'Count'
FROM dbo.order_line_item
INNER JOIN dbo.order_header
ON order_line_item.oli_oh_id = order_header.oh_id
INNER JOIN dbo.variant_detail
ON order_line_item.oli_vad_id = variant_detail.vad_id
INNER JOIN dbo.variant_setting
ON variant_setting.vas_vad_id = variant_detail.vad_id
WHERE variant_setting.vas_manufactured_variant = 1
GROUP BY order_header.oh_order_number)
AS CustomLineCount
,vad_description AS vad_description_Condition
,vad_variant_code AS vad_variant_code_Condition
,wo_id AS key_id
FROM works_order
LEFT OUTER JOIN works_order_analysis
ON works_order_analysis.woa_wo_id = works_order.wo_id
LEFT OUTER JOIN works_order_process
ON works_order_process.wop_id = works_order.wo_current_wop_id
LEFT OUTER JOIN works_order_process_analysis
ON works_order_process_analysis.wopa_wop_id = works_order_process.wop_id
INNER JOIN variant_detail
ON variant_detail.vad_id = works_order.wo_vad_id
LEFT OUTER JOIN works_order_total
ON works_order.wo_id = works_order_total.wot_wo_id
LEFT JOIN order_line_item
ON oli_id = wo_oli_id
LEFT JOIN order_header
ON oh_id = oli_oh_id
LEFT JOIN job_number
ON jn_id = wo_jn_id
LEFT JOIN works_order_process_subcontract_analysis
ON wopsa_wop_id = wop_id
LEFT JOIN order_header_detail
ON ohd_oh_id = oh_id
LEFT JOIN customer_detail
ON cd_id = oh_cd_id
WHERE ((cd_ow_account = 'NOTHS')
AND (wo_pwos_id = 1)
OR (cd_ow_account = 'EBAY')
AND (wo_pwos_id = 1)
OR (cd_ow_account = '4008')
AND (wo_pwos_id = 1)
OR (cd_ow_account = 'TRUSCA')
AND (wo_pwos_id = 1))
AND ((wo_required_datetime <= '2016-12-24 23:59:59'
OR wo_required_datetime IS NULL)
AND (wo_wos_id <> 4)
AND (wo_kit = 0))

Answer 1

将您的子查询更改为：

(SELECT
    COUNT(order_line_item.oli_id) AS 'Count'
FROM dbo.order_line_item
INNER JOIN dbo.order_header
 ON order_line_item.oli_oh_id = order_header.oh_id
INNER JOIN dbo.variant_detail
 ON order_line_item.oli_vad_id = variant_detail.vad_id
INNER JOIN dbo.variant_setting
 ON variant_setting.vas_vad_id = variant_detail.vad_id
WHERE variant_setting.vas_manufactured_variant = 1
 AND order_header.oh_order_number = OUTER_QUERY_TABLE.SAME_FIELD )

我已添加此行：

AND order_header.oh_order_number = OUTER_QUERY_TABLE.SAME_FIELD

您必须使此查询相关，因此添加条件以将记录与外部查询匹配。我不知道它是哪个领域。

您还可以使用WHERE来优化IN()并使其更具可读性：

WHERE wo_pwos_id = 1 
  AND cd_ow_account IN('NOTHS','EBAY','4008','TRUSCA')
  AND (wo_required_datetime <= '2016-12-24 23:59:59' OR wo_required_datetime IS NULL) 
  AND wo_wos_id <> 4
  AND wo_kit = 0

Answer 2

尝试以下查询，它可能会帮助您

.bat

SQL Query提供销售订单上的行数

2 个答案: