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> JSONCompactEachRowWithNamesAndTypes 格式文档

# JSONCompactEachRowWithNamesAndTypes

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

<div id="description">
  ## 描述
</div>

与 [`JSONCompactEachRow`](/zh/reference/formats/JSON/JSONCompactEachRow) 格式的不同之处在于，它还会像 [TabSeparatedWithNamesAndTypes](/zh/reference/formats/TabSeparated/TabSeparatedWithNamesAndTypes) 格式一样输出两行表头，分别显示列名和类型。

<div id="example-usage">
  ## 使用示例
</div>

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

使用一个包含以下内容的 JSON 文件，并将其命名为 `football.json`：

```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 JSONCompactEachRowWithNamesAndTypes;
```

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

使用 `JSONCompactEachRowWithNamesAndTypes` 格式读取数据：

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

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>
  如果将设置 [`input_format_with_names_use_header`](/zh/reference/settings/formats#input_format_with_names_use_header) 设为 `1`，
  输入数据中的列会按名称映射到表中的列；如果将设置 [input\_format\_skip\_unknown\_fields](/zh/reference/settings/formats#input_format_skip_unknown_fields) 设为 1，则会跳过名称未知的列。
  否则，将跳过第一行。
  如果将设置 [`input_format_with_types_use_header`](/zh/reference/settings/formats#input_format_with_types_use_header) 设为 `1`，
  输入数据中的类型会与表中对应列的类型进行比较。否则，将跳过第二行。
</Note>