mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-14 02:12:21 +00:00
d91c97d15d
* Replace underscores with hyphens * remove temporary code * fix style check * fix collapse
29 lines
863 B
Markdown
29 lines
863 B
Markdown
---
|
||
toc_priority: 39
|
||
toc_title: numbers
|
||
---
|
||
|
||
# numbers {#numbers}
|
||
|
||
`numbers(N)` – Returns a table with the single ‘number’ column (UInt64) that contains integers from 0 to N-1.
|
||
`numbers(N, M)` - Returns a table with the single ‘number’ column (UInt64) that contains integers from N to (N + M - 1).
|
||
|
||
Similar to the `system.numbers` table, it can be used for testing and generating successive values, `numbers(N, M)` more efficient than `system.numbers`.
|
||
|
||
The following queries are equivalent:
|
||
|
||
``` sql
|
||
SELECT * FROM numbers(10);
|
||
SELECT * FROM numbers(0, 10);
|
||
SELECT * FROM system.numbers LIMIT 10;
|
||
```
|
||
|
||
Examples:
|
||
|
||
``` 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);
|
||
```
|
||
|
||
[Original article](https://clickhouse.tech/docs/en/query_language/table_functions/numbers/) <!--hide-->
|