Question

我正在尝试正确加入两个表/视图。它们是V_ARINVOICE_ALL和V_GLBATCH_AR_COGS。下图中的第三个表V_ARINVOICE_ALL仅用于补充说明。

我目前正在返回错误的行数，因为我认为这是一种交叉连接。我正在尝试加入Credit的{{1}}。

我使用以下SQL查询加入V_GLBATCH_AR_COGS和V_ARINVOICE_ALL，除了“未选择的信用”外，我得到了所有正确的结果：

V_ARINVOICE_ALL

结果（41行）

SELECT 
V_ARINVOICE_ALL.INVOICE_DATE,
V_ARINVOICE_ALL.ARCUSTO_COMPANY,
V_ARINVOICE_ALL.ARCUSTO_CUSTNO,
V_ARINVOICE_ALL.INVOICE_NO


FROM   
IQMS.V_ARINVOICE_ALL V_ARINVOICE_ALL 


INNER JOIN
IQMS.V_GLACCT V_GLACCT
ON
  V_ARINVOICE_ALL.GLACCT_ID_SALES = V_GLACCT.ID AND V_GLACCT.ACCT = '3648-00-0'



WHERE 
V_ARINVOICE_ALL.ARCUSTO_CUSTNO = 'OX01' 
AND 
V_ARINVOICE_ALL.INVOICE_DATE >= TO_DATE('05/04/2016', 'dd/mm/yyyy')
AND
V_ARINVOICE_ALL.INVOICE_DATE <= TO_DATE('15/06/2017', 'dd/mm/yyyy')

ORDER BY 
 V_ARINVOICE_ALL.INVOICE_DATE

但是当我尝试使用以下查询加入|INVOICE_DATE|...| INVOICE| +------------+---+--------+ | 05/04/2016|...| 494658| | 20/05/2016|...| 495274| | 20/05/2016|...| 495275|和V_ARINVOICE_ALL时：

V_GLBATCH_AR_COGS

我得到的结果如下：（165行）

SELECT 
 V_ARINVOICE_ALL.INVOICE_DATE,
 V_ARINVOICE_ALL.ARCUSTO_COMPANY,
 V_ARINVOICE_ALL.ARCUSTO_CUSTNO,
 V_ARINVOICE_ALL.INVOICE_NO,
 V_GLBATCH_AR_COGS.CREDIT AS "INCOME"


FROM   
 IQMS.V_ARINVOICE_ALL V_ARINVOICE_ALL 


INNER JOIN
 IQMS.V_GLBATCH_AR_COGS V_GLBATCH_AR_COGS
ON
 V_ARINVOICE_ALL.GLBATCHID_ID = V_GLBATCH_AR_COGS.ID
 AND V_ARINVOICE_ALL.GLPERIODS_ID_AR = V_GLBATCH_AR_COGS.GLPERIODS_ID
 AND V_GLBATCH_AR_COGS.DESCRIP LIKE '%OX01%ITEMS%' AND V_GLBATCH_AR_COGS.ACCT = '3648-00-0'



WHERE 
 V_ARINVOICE_ALL.ARCUSTO_CUSTNO = 'OX01' 
AND 
 V_ARINVOICE_ALL.INVOICE_DATE >= TO_DATE('05/04/2016', 'dd/mm/yyyy')
AND
 V_ARINVOICE_ALL.INVOICE_DATE <= TO_DATE('15/06/2017', 'dd/mm/yyyy')

ORDER BY 
 V_ARINVOICE_ALL.INVOICE_DATE

期望的结果（41行）

  |INVOICE_DATE|...| INVOICE|  INCOME|
  +------------+---+--------+--------+
  |  ...       |...|  ...   |   ...  |
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     450|
  |  23/06/2016|...|  495667|     450|
  |  23/06/2016|...|  495667|     450|
  |  ...       |...|  ...   |   ...  |

我比以前更加熟悉联接。但我不确定我做得对不对。我尝试了右连接，右外连接，左连接，左外连接等。我在这里做错了什么？

EDIT2：第一次编辑很糟糕没有任何意义。我不知道这是否有帮助，但只有两行是

  |INVOICE_DATE|...| INVOICE|  INCOME|
  +------------+---+--------+--------+
  |  ...       |...|  ...   |   ...  |
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     225|
  |  23/06/2016|...|  495667|     450|
  |  ...       |...|  ...   |   ...  |

表中的

与加入时的| 23/06/2016|...| 495667| 225| | 23/06/2016|...| 495667| 225|子句匹配：WHERE

但仍然会得到它超过两次。所以我想它与1到很多的关系有关。我不确定如何处理。

如果有任何帮助。

如果您需要更多信息，请随时提出。

Answer 1

看起来像是一对多的关系。 COGS表中的值多于您所需的值（可能是另一列填充了其他数据）。

尝试SELECT DISTINCT限制所选列的唯一值：

SELECT DISTINCT -- DISTINCT goes here
 V_ARINVOICE_ALL.INVOICE_DATE,
 V_ARINVOICE_ALL.ARCUSTO_COMPANY,
 V_ARINVOICE_ALL.ARCUSTO_CUSTNO,
 V_ARINVOICE_ALL.INVOICE_NO,
 V_GLBATCH_AR_COGS.CREDIT AS "INCOME"


FROM   
 IQMS.V_ARINVOICE_ALL V_ARINVOICE_ALL 


INNER JOIN
 IQMS.V_GLBATCH_AR_COGS V_GLBATCH_AR_COGS
ON
 V_ARINVOICE_ALL.GLBATCHID_ID = V_GLBATCH_AR_COGS.ID
 AND V_ARINVOICE_ALL.GLPERIODS_ID_AR = V_GLBATCH_AR_COGS.GLPERIODS_ID
 AND V_GLBATCH_AR_COGS.DESCRIP LIKE '%OX01%ITEMS%' AND V_GLBATCH_AR_COGS.ACCT = '3648-00-0'



WHERE 
 V_ARINVOICE_ALL.ARCUSTO_CUSTNO = 'OX01' 
AND 
 V_ARINVOICE_ALL.INVOICE_DATE >= TO_DATE('05/04/2016', 'dd/mm/yyyy')
AND
 V_ARINVOICE_ALL.INVOICE_DATE <= TO_DATE('15/06/2017', 'dd/mm/yyyy')

ORDER BY 
 V_ARINVOICE_ALL.INVOICE_DATE

Oracle SQL加入两个表/视图以避免跨产品

1 个答案: