如何从字符串中提取特定数量的金额并使用postgres添加它们

Question

7 years/100,000 miles. xyz $1200 abc 451.00| hhh 14.00 

如何在Postgresql中获得输出= 1665。我要添加带 $ 符号的数字或带小数点的数字。

Answer 1

with data(str) as (
values ('7 years/100,000 miles. xyz $1200 abc 451.00| hhh 14.00 ')
)

select sum(item::numeric)
from (
    select unnest(regexp_matches(str, '(\d+\.\d+)|\$(\d+)', 'g')) as item
    from data
    ) s

   sum   
---------
 1665.00
(1 row)     

请参见regex explanation.

了解有关 POSIX Regular Expressions.

的信息