查找具有匹配员工地址的供应商：ORACLE SQL

我这样做是为了根据地址和zipcode字段中的数字找到与我们的员工地址匹配的供应商，但是速度非常慢。查询将删除所有文本，并将employee表中的数字连接到vendor表

有什么方法可以提高查询性能

SELECT 
  T1.EMPLID, T1.NAME, T1.ADDRESS1, T1.ADDRESS2, T1.ADDRESS3, T1.ADDRESS4, T1.CITY, 
  T2.VENDOR_ID, T3.NAME1, T2.ADDRESS1, T2.ADDRESS2, T2.ADDRESS3, T2.ADDRESS4, T2.CITY
FROM PS_PERSONAL_DATA T1
JOIN PS_VENDOR_ADDR T2
ON 
  TRANSLATE(T1.ADDRESS1, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
  TRANSLATE(T1.ADDRESS2, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
  SUBSTR(T2.POSTAL,0,5) =
  TRANSLATE(T2.ADDRESS1, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
  TRANSLATE(T2.ADDRESS2, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
  SUBSTR(T2.POSTAL,0,5)
JOIN PS_VENDOR T3
ON T2.VENDOR_ID = T3.VENDOR_ID
WHERE T1.EMPLID <> T2.VENDOR_ID
AND  
TRANSLATE(T1.ADDRESS1, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS2, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
SUBSTR(T2.POSTAL,0,5) NOT LIKE ' '
AND T2.VENDOR_ID IN
(
  SELECT VENDOR_ID
  FROM PS_VOUCHER
  WHERE PROCESS_INSTANCE <> 0
  AND POST_STATUS_AP LIKE 'P'
  AND VENDOR_ID NOT IN
  (
  '0000003730',
  '0000003318',
  '0000003555',
  '0000002422',
  '0000003458',
  '0000001089',
  '0000001450',
  '0000003809',
  '0000003255',
  '0000001903'
  )
  HAVING SUM(GROSS_AMT) > 5000 AND COUNT(VENDOR_ID) > 2
  GROUP BY VENDOR_ID
)
;

---

我会考虑以下方法： -通过添加两个计算列以及格式化结果来取消表的规范化 -在这些列上添加非主索引

然后，您可以在这些列上创建一个连接，该连接将运行得更快。

解决了这个问题：

我的zipcode使用了错误的表T2而不是T1 我将供应商ID条件移到子查询之外 它现在在不到8秒内执行

SELECT 
T1.EMPLID, T1.NAME, T1.ADDRESS1 AS EE_ADDR, T2.ADDRESS1 AS VEN_ADDR, T1.ADDRESS2, T1.ADDRESS3, T1.CITY, T1.POSTAL,
T2.VENDOR_ID, T2.ADDRESS1, T2.ADDRESS2, T2.ADDRESS3, T2.CITY, T2.POSTAL
FROM PS_PERSONAL_DATA T1
JOIN PS_VENDOR_ADDR T2
ON 
TRANSLATE(T1.ADDRESS1, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS2, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS3, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS4, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
SUBSTR(T1.POSTAL,0,5) =
TRANSLATE(T2.ADDRESS1, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T2.ADDRESS2, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T2.ADDRESS3, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T2.ADDRESS4, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
SUBSTR(T2.POSTAL,0,5)
WHERE 
TRANSLATE(T1.ADDRESS1, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS2, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS3, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
TRANSLATE(T1.ADDRESS4, 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-#./ ,',' ') ||
SUBSTR(T1.POSTAL,0,5) NOT LIKE ' '
AND VENDOR_ID NOT IN
  (
  '0000003730',
  '0000003318',
  '0000003555',
  '0000002422',
  '0000003458',
  '0000001089',
  '0000001450',
  '0000003809',
  '0000003255',
  '0000001903'
  )
AND VENDOR_ID NOT LIKE 'SF%'
AND VENDOR_ID NOT LIKE 'P%'
AND VENDOR_ID NOT LIKE '_______'
AND T2.VENDOR_ID IN
(
  SELECT VENDOR_ID
  FROM PS_VOUCHER
  WHERE PROCESS_INSTANCE  0
  AND POST_STATUS_AP LIKE 'P'
  HAVING SUM(GROSS_AMT) > 5000 AND COUNT(VENDOR_ID) > 2
  GROUP BY VENDOR_ID
)
;

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我只有选择访问权限…：我无法创建/更新/删除表。不过谢谢。想想看，我几乎一碰到这个问题就发现了这个问题。。。我可以让你少受40-50分钟的痛苦？正在搜索您发布时我是否看到了它：英雄联盟谢谢你，安德烈：D