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小墨
2025-09-29 14:43:44 +08:00
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18
leetcode-cn/originData/combine-two-tables.json
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@@ -12,12 +12,12 @@
"translatedContent": "<p>表: <code>Person</code></p>\n\n<pre>\n+-------------+---------+\n| 列名 | 类型 |\n+-------------+---------+\n| PersonId | int |\n| FirstName | varchar |\n| LastName | varchar |\n+-------------+---------+\npersonId 是该表的主键（具有唯一值的列）。\n该表包含一些人的 ID 和他们的姓和名的信息。\n</pre>\n\n<p>&nbsp;</p>\n\n<p>表: <code>Address</code></p>\n\n<pre>\n+-------------+---------+\n| 列名 | 类型 |\n+-------------+---------+\n| AddressId | int |\n| PersonId | int |\n| City | varchar |\n| State | varchar |\n+-------------+---------+\naddressId 是该表的主键（具有唯一值的列）。\n该表的每一行都包含一个 ID = PersonId 的人的城市和州的信息。\n</pre>\n\n<p>&nbsp;</p>\n\n<p>编写解决方案，报告 <code>Person</code> 表中每个人的姓、名、城市和州。如果 <code>personId</code> 的地址不在&nbsp;<code>Address</code>&nbsp;表中，则报告为&nbsp;<code>null</code>&nbsp;。</p>\n\n<p>以 <strong>任意顺序</strong> 返回结果表。</p>\n\n<p>结果格式如下所示。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:</strong> \nPerson表:\n+----------+----------+-----------+\n| personId | lastName | firstName |\n+----------+----------+-----------+\n| 1 | Wang | Allen |\n| 2 | Alice | Bob |\n+----------+----------+-----------+\nAddress表:\n+-----------+----------+---------------+------------+\n| addressId | personId | city | state |\n+-----------+----------+---------------+------------+\n| 1 | 2 | New York City | New York |\n| 2 | 3 | Leetcode | California |\n+-----------+----------+---------------+------------+\n<strong>输出:</strong> \n+-----------+----------+---------------+----------+\n| firstName | lastName | city | state |\n+-----------+----------+---------------+----------+\n| Allen | Wang | Null | Null |\n| Bob | Alice | New York City | New York |\n+-----------+----------+---------------+----------+\n<strong>解释:</strong> \n地址表中没有 personId = 1 的地址，所以它们的城市和州返回 null。\naddressId = 1 包含了 personId = 2 的地址信息。</pre>\n",
"isPaidOnly": false,
"difficulty": "Easy",
"likes": 1537,
"likes": 1577,
"dislikes": 0,
"isLiked": null,
"similarQuestions": "[{\"title\": \"Employee Bonus\", \"titleSlug\": \"employee-bonus\", \"difficulty\": \"Easy\", \"translatedTitle\": \"\\u5458\\u5de5\\u5956\\u91d1\", \"isPaidOnly\": false}]",
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{
"name": "Database",
@@ -40,6 +40,12 @@
"code": "/* Write your T-SQL query statement below */",
"__typename": "CodeSnippetNode"
},
{
"lang": "PostgreSQL",
"langSlug": "postgresql",
"code": "-- Write your PostgreSQL query statement below",
"__typename": "CodeSnippetNode"
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"lang": "Oracle",
"langSlug": "oraclesql",
@@ -51,15 +57,9 @@
"langSlug": "pythondata",
"code": "import pandas as pd\n\ndef combine_two_tables(person: pd.DataFrame, address: pd.DataFrame) -> pd.DataFrame:\n ",
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{
"lang": "PostgreSQL",
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"code": "-- Write your PostgreSQL query statement below",
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"solution": {
"id": "101",