ClickHouse/docs/en/sql-reference/statements/select/all.md

21 lines
504 B
Markdown

---
slug: /en/sql-reference/statements/select/all
sidebar_label: ALL
---
# ALL Clause
If there are multiple matching rows in the table, then `ALL` returns all of them. `SELECT ALL` is identical to `SELECT` without `DISTINCT`. If both `ALL` and `DISTINCT` specified, exception will be thrown.
`ALL` can also be specified inside aggregate function with the same effect(noop), for instance:
```sql
SELECT sum(ALL number) FROM numbers(10);
```
equals to
```sql
SELECT sum(number) FROM numbers(10);
```