我编写了一个查询,以便在MS SQL SERVER数据库中返回具有最短和最长字符串的城市。
ArrayList<Long> instead of long[]
我的困难在于我得到了重复,因为我有一些城市的长度最长,最短。此外,当我在两个子查询中尝试Select city, len(city) as l
From Station Where len(city) in
((select max(len(city)) from station)
Union
(select min(len(city)) from station))
Order by l,city;
时,它都会失败。
有什么建议吗?
答案 0 :(得分:3)
我可能会这样做:
select top (1) with ties city
from station
order by len(city) asc
union
select top (1) with ties city
from station
order by len(city) desc;
或者:
select distinct city
from station
where len(city) = (select max(len(city)) from station) or
len(city) = (select min(len(city)) from station);
答案 1 :(得分:0)
另一种方式:
select * from (
select top 1 city, LEN(city) cityLength from station order by cityLength ASC,city ASC) Minimum
UNION
select * from (
select top 1 city, LEN(city) cityLength from station order by cityLength desc, city ASC) Maximum
答案 2 :(得分:0)
从城市中选择城市,从城市中选择城市的长度(城市)(从城市中选择城市,从(从城市中选择城市的长度(城市),从城市中选择长度(城市)),或从城市中(从城市中选择最小值(城市),选择城市中的城市长度)在(按城市的升序选择(从车站选择min(length(City))))中的length(City)顺序;
答案 3 :(得分:0)
哇!
我今天遇到了这个问题,这就是我的解决方法
tag_depth = 0
for c in mystring:
if c == '<':
tag_depth += 1
elif c == '>':
tag_depth -= 1
elif tag_depth == 0:
print(f"{c}", end=0)