mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-28 20:50:49 +00:00
30 lines
1.1 KiB
Markdown
30 lines
1.1 KiB
Markdown
---
|
|
toc_priority: 42
|
|
toc_title: QUOTA
|
|
---
|
|
|
|
# CREATE QUOTA {#create-quota-statement}
|
|
|
|
Creates a [quota](../../../operations/access-rights.md#quotas-management) that can be assigned to a user or a role.
|
|
|
|
Syntax:
|
|
|
|
``` sql
|
|
CREATE QUOTA [IF NOT EXISTS | OR REPLACE] name [ON CLUSTER cluster_name]
|
|
[KEYED BY {'none' | 'user name' | 'ip address' | 'forwarded ip address' | 'client key' | 'client key or user name' | 'client key or ip address'}]
|
|
[FOR [RANDOMIZED] INTERVAL number {SECOND | MINUTE | HOUR | DAY | WEEK | MONTH | QUARTER | YEAR}
|
|
{MAX { {QUERIES | ERRORS | RESULT ROWS | RESULT BYTES | READ ROWS | READ BYTES | EXECUTION TIME} = number } [,...] |
|
|
NO LIMITS | TRACKING ONLY} [,...]]
|
|
[TO {role [,...] | ALL | ALL EXCEPT role [,...]}]
|
|
```
|
|
|
|
`ON CLUSTER` clause allows creating quotas on a cluster, see [Distributed DDL](../../../sql-reference/distributed-ddl.md).
|
|
|
|
## Example {#create-quota-example}
|
|
|
|
Limit the maximum number of queries for the current user with 123 queries in 15 months constraint:
|
|
|
|
``` sql
|
|
CREATE QUOTA qA FOR INTERVAL 15 MONTH MAX QUERIES 123 TO CURRENT_USER
|
|
```
|