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> JSONCompactStringsEachRowWithNamesAndTypes 格式文档

# JSONCompactStringsEachRowWithNamesAndTypes

| 输入 | 输出 | 别名 |
| -- | -- | -- |
| ✔  | ✔  |    |

<div id="description">
  ## 描述
</div>

与 `JSONCompactEachRow` 格式的区别在于，它还会输出两行表头，分别包含列名和类型，类似于 [TabSeparatedWithNamesAndTypes](/zh/reference/formats/TabSeparated/TabSeparatedRawWithNamesAndTypes)。

<div id="example-usage">
  ## 示例用法
</div>

<div id="inserting-data">
  ### 插入数据
</div>

使用一个包含以下数据、名为 `football.json` 的 JSON 文件：

```json theme={null}
["date", "season", "home_team", "away_team", "home_team_goals", "away_team_goals"]
["Date", "Int16", "LowCardinality(String)", "LowCardinality(String)", "Int8", "Int8"]
["2022-04-30", "2021", "Sutton United", "Bradford City", "1", "4"]
["2022-04-30", "2021", "Swindon Town", "Barrow", "2", "1"]
["2022-04-30", "2021", "Tranmere Rovers", "Oldham Athletic", "2", "0"]
["2022-05-02", "2021", "Port Vale", "Newport County", "1", "2"]
["2022-05-02", "2021", "Salford City", "Mansfield Town", "2", "2"]
["2022-05-07", "2021", "Barrow", "Northampton Town", "1", "3"]
["2022-05-07", "2021", "Bradford City", "Carlisle United", "2", "0"]
["2022-05-07", "2021", "Bristol Rovers", "Scunthorpe United", "7", "0"]
["2022-05-07", "2021", "Exeter City", "Port Vale", "0", "1"]
["2022-05-07", "2021", "Harrogate Town A.F.C.", "Sutton United", "0", "2"]
["2022-05-07", "2021", "Hartlepool United", "Colchester United", "0", "2"]
["2022-05-07", "2021", "Leyton Orient", "Tranmere Rovers", "0", "1"]
["2022-05-07", "2021", "Mansfield Town", "Forest Green Rovers", "2", "2"]
["2022-05-07", "2021", "Newport County", "Rochdale", "0", "2"]
["2022-05-07", "2021", "Oldham Athletic", "Crawley Town", "3", "3"]
["2022-05-07", "2021", "Stevenage Borough", "Salford City", "4", "2"]
["2022-05-07", "2021", "Walsall", "Swindon Town", "0", "3"]
```

插入数据：

```sql theme={null}
INSERT INTO football FROM INFILE 'football.json' FORMAT JSONCompactStringsEachRowWithNamesAndTypes;
```

<div id="reading-data">
  ### 读取数据
</div>

使用 `JSONCompactStringsEachRowWithNamesAndTypes` 格式来读取数据：

```sql theme={null}
SELECT *
FROM football
FORMAT JSONCompactStringsEachRowWithNamesAndTypes
```

输出将为 JSON 格式：

```json theme={null}
["date", "season", "home_team", "away_team", "home_team_goals", "away_team_goals"]
["Date", "Int16", "LowCardinality(String)", "LowCardinality(String)", "Int8", "Int8"]
["2022-04-30", "2021", "Sutton United", "Bradford City", "1", "4"]
["2022-04-30", "2021", "Swindon Town", "Barrow", "2", "1"]
["2022-04-30", "2021", "Tranmere Rovers", "Oldham Athletic", "2", "0"]
["2022-05-02", "2021", "Port Vale", "Newport County", "1", "2"]
["2022-05-02", "2021", "Salford City", "Mansfield Town", "2", "2"]
["2022-05-07", "2021", "Barrow", "Northampton Town", "1", "3"]
["2022-05-07", "2021", "Bradford City", "Carlisle United", "2", "0"]
["2022-05-07", "2021", "Bristol Rovers", "Scunthorpe United", "7", "0"]
["2022-05-07", "2021", "Exeter City", "Port Vale", "0", "1"]
["2022-05-07", "2021", "Harrogate Town A.F.C.", "Sutton United", "0", "2"]
["2022-05-07", "2021", "Hartlepool United", "Colchester United", "0", "2"]
["2022-05-07", "2021", "Leyton Orient", "Tranmere Rovers", "0", "1"]
["2022-05-07", "2021", "Mansfield Town", "Forest Green Rovers", "2", "2"]
["2022-05-07", "2021", "Newport County", "Rochdale", "0", "2"]
["2022-05-07", "2021", "Oldham Athletic", "Crawley Town", "3", "3"]
["2022-05-07", "2021", "Stevenage Borough", "Salford City", "4", "2"]
["2022-05-07", "2021", "Walsall", "Swindon Town", "0", "3"]
```

<div id="format-settings">
  ## 格式设置
</div>

<Note>
  如果设置 [input\_format\_with\_names\_use\_header](/zh/reference/settings/formats#input_format_with_names_use_header) 的值为 1，
  则会按列名将输入数据中的列映射到表中的列；如果设置 [input\_format\_skip\_unknown\_fields](/zh/reference/settings/formats#input_format_skip_unknown_fields) 的值为 1，则会跳过名称未知的列。
  否则，将跳过第一行。
</Note>

<Note>
  如果设置 [input\_format\_with\_types\_use\_header](/zh/reference/settings/formats#input_format_with_types_use_header) 的值为 1，
  则会将输入数据中的类型与表中对应列的类型进行比较。否则，将跳过第二行。
</Note>