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35 lines
1.2 KiB
Markdown
35 lines
1.2 KiB
Markdown
---
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toc_priority: 46
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toc_title: QUOTA
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---
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# ALTER QUOTA {#alter-quota-statement}
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Changes [quotas](../../../operations/access-rights.md#quotas-management).
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Syntax:
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``` sql
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ALTER QUOTA [IF EXISTS] name [ON CLUSTER cluster_name]
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[RENAME TO new_name]
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[KEYED BY {USER_NAME | IP_ADDRESS | CLIENT_KEY | CLIENT_KEY, USER_NAME | CLIENT_KEY, IP_ADDRESS} | NOT KEYED]
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[FOR [RANDOMIZED] INTERVAL number {SECOND | MINUTE | HOUR | DAY | WEEK | MONTH | QUARTER | YEAR}
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{MAX { {QUERIES | ERRORS | RESULT_ROWS | RESULT_BYTES | READ_ROWS | READ_BYTES | EXECUTION_TIME} = number } [,...] |
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NO LIMITS | TRACKING ONLY} [,...]]
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[TO {role [,...] | ALL | ALL EXCEPT role [,...]}]
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```
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**Examples**
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Limit the maximum number of queries for the current user with 123 queries in 15 months constraint:
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``` sql
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ALTER QUOTA IF EXISTS qA FOR INTERVAL 15 MONTH MAX QUERIES 123 TO CURRENT_USER;
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```
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For the default user limit the maximum execution time with half a second in 30 minutes, and limit the maximum number of queries with 321 and the maximum number of errors with 10 in 5 quaters:
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``` sql
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ALTER QUOTA IF EXISTS qB FOR INTERVAL 30 MINUTE MAX EXECUTION_TIME = 0.5, FOR INTERVAL 5 QUATER MAX QUERIES = 321, ERRORS = 10 TO default;
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```
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