ClickHouse/docs/en/query_language/table_functions/numbers.md
2020-01-30 13:34:55 +03:00

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# 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-->