Question

我有一个列名ip_addr，其中包含有效IP和无效IP。我希望仅在Teradata中对有效的IP地址进行子集化。现在我使用以下内容但它似乎不起作用：

EXECUTE
(
create multiset volatile table base as
(
select  distinct int_cust_ip_addr as ip_addr

from cm11_jan14
where int_cust_ip_addr like '%.%.%.%' 
) 
WITH  DATA PRIMARY INDEX(ip_addr) 
ON COMMIT PRESERVE ROWS
)
BY TERADATA;

Answer 1

TD14 +支持正则表达式，对于正确的IP4地址，返回 1 ：

SELECT events.event_id,events.tournament, events.team, events.team2,
       events.event_date, events.venue, pick.picks,picks.tournament
FROM  events 
INNER JOIN picks ON  `event_id`.events = `event_id`.picks
WHERE tournament = 'SUPER15'

对于IP6，只需搜索“regex ip6”

从一组列值中识别有效的IP

1 个答案: