题解 | #提取博客URL中的用户名#
提取博客URL中的用户名
https://www.nowcoder.com/practice/26c8715f32e24d918f15db69518f3ad8
select
device_id,
/*substr(blog_url,11) as user_name
replace(blog_url,'http:/url/','') as user_name*/
trim(
'http:/url/'
from
blog_url
) as user_name
from
user_submit;

查看5道真题和解析
