Question

来源专栏

Id   | email
_______________________
01   | aemail1, wemail2
02   | bemail1 : xemail2
03   |  cemail1  yemail2
04   | demail1&zemail2

目标栏

Id | primary_email| secondary_email
01 | aemail1      | wemail2
02 | bemail1      | xemail2
03 | cemail1      | yemail2
04 | demail1      | zemail2

在某些情况下＆lt; space＆gt;如果不是pl / SQL，我们也可以使用SQL做分隔符请帮我解决这个问题

Answer 1

您可以使用正则表达式将电子邮件拆分为两个。此示例拆分一个或多个连续分隔符, or space or &

select 
  ID, 
  regexp_replace(EMAIL, '^(.*)[,\s&]+.*', '\1') AS PRIMARY_EMAIL,
  regexp_replace(EMAIL, '.*[,\s&]+(.*)', '\1') AS SECONDARY_EMAIL 
from TABLE_NAME

如果有多个分隔符，如何将列拆分为两列

1 个答案: