mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-10-05 08:00:51 +00:00
31 lines
862 B
Markdown
31 lines
862 B
Markdown
|
---
|
|||
|
|
machine_translated: true
|
|||
|
|
machine_translated_rev: b111334d6614a02564cf32f379679e9ff970d9b1
|
|||
|
|
toc_priority: 39
|
|||
|
|
toc_title: "\u6570\u5B57"
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
# 数字 {#numbers}
|
|||
|
|
|
|||
|
|
`numbers(N)` – Returns a table with the single ‘number’ 包含从0到N-1的整数的列(UInt64)。
|
|||
|
|
`numbers(N, M)` -返回一个表与单 ‘number’ 包含从N到(N+M-1)的整数的列(UInt64)。
|
|||
|
|
|
|||
|
|
类似于 `system.numbers` 表，它可以用于测试和生成连续的值, `numbers(N, M)` 比 `system.numbers`.
|
|||
|
|
|
|||
|
|
以下查询是等效的:
|
|||
|
|
|
|||
|
|
``` sql
|
|||
|
|
SELECT * FROM numbers(10);
|
|||
|
|
SELECT * FROM numbers(0, 10);
|
|||
|
|
SELECT * FROM system.numbers LIMIT 10;
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
例:
|
|||
|
|
|
|||
|
|
``` sql
|
|||
|
|
-- Generate a sequence of dates from 2010-01-01 to 2010-12-31
|
|||
|
|
select toDate('2010-01-01') + number as d FROM numbers(365);
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
[原始文章](https://clickhouse.tech/docs/en/query_language/table_functions/numbers/) <!--hide-->
|