2022-08-26 19:07:59 +00:00
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---
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slug: /zh/operations/system-tables/quotas_usage
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---
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2021-10-27 06:19:11 +00:00
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# system.quotas_usage {#system_tables-quotas_usage}
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所有用户配额使用情况.
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列信息:
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- `quota_name` ([String](../../sql-reference/data-types/string.md)) — 配额名称.
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- `quota_key` ([String](../../sql-reference/data-types/string.md)) — 配额key值.
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- `is_current` ([UInt8](../../sql-reference/data-types/int-uint.md#uint-ranges)) — 当前用户配额使用情况.
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- `start_time` ([Nullable](../../sql-reference/data-types/nullable.md)([DateTime](../../sql-reference/data-types/datetime.md)))) — 计算资源消耗的开始时间.
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- `end_time` ([Nullable](../../sql-reference/data-types/nullable.md)([DateTime](../../sql-reference/data-types/datetime.md)))) — 计算资源消耗的结束时间.
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- `duration` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt32](../../sql-reference/data-types/int-uint.md))) — 计算资源消耗的时间间隔长度，单位为秒.
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- `queries` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 在此间隔内的请求总数.
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- `max_queries` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 最大请求数.
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- `query_selects` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 此间隔内查询请求的总数.
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- `max_query_selects` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 查询请求的最大数量.
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- `query_inserts` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 此间隔内插入请求的总数.
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- `max_query_inserts` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 最大插入请求数.
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- `errors` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 抛出异常的查询数.
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- `max_errors` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 最大误差数.
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- `result_rows` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 结果给出的总行数.
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- `max_result_rows` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 从表中读取的最大源行数.
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- `result_bytes` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 用于存储查询结果的RAM容量(以字节为单位).
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- `max_result_bytes` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 用于存储查询结果的最大RAM容量, 以字节为单位.
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- `read_rows` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md)))) — 为在所有远程服务器上运行查询而从表中读取的源行总数.
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- `max_read_rows` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 参与查询的所有表和表函数中读取的最大行数.
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- `read_bytes` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 参与查询的所有表和表函数中读取的总字节数.
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- `max_read_bytes` ([Nullable](../../sql-reference/data-types/nullable.md)([UInt64](../../sql-reference/data-types/int-uint.md))) — 所有表和表函数中读取的最大字节数.
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- `execution_time` ([Nullable](../../sql-reference/data-types/nullable.md)([Float64](../../sql-reference/data-types/float.md))) — 总查询执行时间, 以秒为单位(挂墙时间).
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- `max_execution_time` ([Nullable](../../sql-reference/data-types/nullable.md)([Float64](../../sql-reference/data-types/float.md))) — 查询最大执行时间.
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## 另请参阅 {#see-also}
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- [查看配额信息](../../sql-reference/statements/show.md#show-quota-statement)
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