mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
synced 2025-11-04 11:43:12 +08:00
62 lines
1.9 KiB
HTML
62 lines
1.9 KiB
HTML
<p><code>World</code> 表：</p>
|
||
|
||
<div class="top-view__1vxA">
|
||
<div class="original__bRMd">
|
||
<div>
|
||
<pre>
|
||
+-------------+---------+
|
||
| Column Name | Type |
|
||
+-------------+---------+
|
||
| name | varchar |
|
||
| continent | varchar |
|
||
| area | int |
|
||
| population | int |
|
||
| gdp | int |
|
||
+-------------+---------+
|
||
name 是这张表的主键。
|
||
这张表的每一行提供：国家名称、所属大陆、面积、人口和 GDP 值。
|
||
</pre>
|
||
|
||
<p> </p>
|
||
|
||
<p>如果一个国家满足下述两个条件之一，则认为该国是 <strong>大国</strong> ：</p>
|
||
|
||
<ul>
|
||
<li>面积至少为 300 平方公里（即，<code>3000000 km<sup>2</sup></code>），或者</li>
|
||
<li>人口至少为 2500 万（即 <code>25000000</code>）</li>
|
||
</ul>
|
||
|
||
<p>编写一个 SQL 查询以报告 <strong>大国</strong> 的国家名称、人口和面积。</p>
|
||
|
||
<p>按 <strong>任意顺序</strong> 返回结果表。</p>
|
||
|
||
<p>查询结果格式如下例所示。</p>
|
||
|
||
<p> </p>
|
||
|
||
<p><strong>示例：</strong></p>
|
||
|
||
<pre>
|
||
<strong>输入：</strong>
|
||
World 表：
|
||
+-------------+-----------+---------+------------+--------------+
|
||
| name | continent | area | population | gdp |
|
||
+-------------+-----------+---------+------------+--------------+
|
||
| Afghanistan | Asia | 652230 | 25500100 | 20343000000 |
|
||
| Albania | Europe | 28748 | 2831741 | 12960000000 |
|
||
| Algeria | Africa | 2381741 | 37100000 | 188681000000 |
|
||
| Andorra | Europe | 468 | 78115 | 3712000000 |
|
||
| Angola | Africa | 1246700 | 20609294 | 100990000000 |
|
||
+-------------+-----------+---------+------------+--------------+
|
||
<strong>输出：</strong>
|
||
+-------------+------------+---------+
|
||
| name | population | area |
|
||
+-------------+------------+---------+
|
||
| Afghanistan | 25500100 | 652230 |
|
||
| Algeria | 37100000 | 2381741 |
|
||
+-------------+------------+---------+
|
||
</pre>
|
||
</div>
|
||
</div>
|
||
</div>
|