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For a quick overview of these editions, see [https://www.databend.com/databend-cloud](https://www.databend.com/databend-cloud). For the pricing information, see [Pricing & Billing](/guides/overview/editions/dc/pricing). For the detailed feature list among these editions, see [Feature Lists](#feature-lists).
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For a quick overview of these editions, see [https://www.databend.com/databend-cloud](https://www.databend.com/databend-cloud). For the pricing information, see [Pricing & Billing](/guides/products/dc/pricing). For the detailed feature list among these editions, see [Feature Lists](#feature-lists).
Databend Enterprise Edition supports server-side encryption in OSS. This feature enables you to enhance data security and privacy by activating server-side encryption for data stored in OSS. You can choose the encryption method that best suits your needs. Please note that you must have a valid Databend Enterprise Edition license to utilize this feature. To obtain one, see [Licensing Databend](../../../00-overview/00-editions/01-dee/20-license.md).
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Databend Enterprise Edition supports server-side encryption in OSS. This feature enables you to enhance data security and privacy by activating server-side encryption for data stored in OSS. You can choose the encryption method that best suits your needs. Please note that you must have a valid Databend Enterprise Edition license to utilize this feature. To obtain one, see [Licensing Databend](../../../00-products/01-dee/20-license.md).
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To enable server-side encryption in Databend, add the following parameters to the [storage.oss] section:
Copy file name to clipboardExpand all lines: docs/en/guides/20-cloud/10-using-databend-cloud/01-warehouses.md
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@@ -6,22 +6,22 @@ import PlaySVG from '@site/static/img/icon/play.svg'
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import SuspendSVG from '@site/static/img/icon/suspend.svg'
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import CheckboxSVG from '@site/static/img/icon/checkbox.svg'
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import EllipsisSVG from '@site/static/img/icon/ellipsis.svg'
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import { Button } from 'antd'
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import { Button } from 'antd'
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The warehouse is an essential component of Databend Cloud. A warehouse represents a set of compute resources including CPU, memory, and local caches. You must run a warehouse to perform SQL tasks such as:
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- Querying data with the SELECT statement
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- Modifying data with the INSERT, UPDATE, or DELETE statement
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- Loading data into a table with the COPY INTO command
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Running a warehouse incurs expenses. For more information, see [Warehouse Pricing](/guides/overview/editions/dc/pricing#warehouse-pricing).
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Running a warehouse incurs expenses. For more information, see [Warehouse Pricing](/guides/products/dc/pricing#warehouse-pricing).
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## Warehouse Sizes
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In Databend Cloud, warehouses are available in various sizes, each defined by the maximum number of concurrent queries it can handle. When creating a warehouse, you can choose from the following sizes:
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| Size | Max. Concurrency | Recommended Use Cases |
| XSmall | 2 | Best for simple tasks like testing or running light queries. Suitable for small datasets (around 50GB). |
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| Small | 4 | Great for running regular reports and moderate workloads. Suitable for medium-sized datasets (around 200GB). |
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| Medium | 8 | Ideal for teams handling more complex queries and higher concurrency. Suitable for larger datasets (around 1TB). |
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### Suspending / Resuming Warehouses
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A suspended warehouse does not consume any credits. You can manually suspend or resume a warehouse by clicking the <SuspendSVG/> or <PlaySVG/> button on the warehouse. However, a warehouse can automatically suspend or resume in the following scenarios:
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A suspended warehouse does not consume any credits. You can manually suspend or resume a warehouse by clicking the <SuspendSVG/> or <PlaySVG/> button on the warehouse. However, a warehouse can automatically suspend or resume in the following scenarios:
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- A warehouse can automatically suspend if there is no activity, based on its auto-suspend setting.
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- When you select a suspended warehouse to perform a SQL task, the warehouse will automatically resume.
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To effectively manage your warehouses and ensure optimal performance and cost-efficiency, consider the following best practices. These guidelines will help you size, organize, and fine-tune your warehouses for various workloads and environments:
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-**Choose the Right Size**
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- For **development & testing**, use smaller warehouses (XSmall, Small).
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- For **production**, opt for larger warehouses (Medium, Large, XLarge).
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-**Choose the Right Size**
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-**Separate Warehouses**
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- Use separate warehouses for **data loading** and **query execution**.
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- Create distinct warehouses for **development**, **testing**, and **production** environments.
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- For **development & testing**, use smaller warehouses (XSmall, Small).
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- For **production**, opt for larger warehouses (Medium, Large, XLarge).
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-**Data Loading Tips**
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- Smaller warehouses (Small, Medium) are suitable for data loading.
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- Optimize file size and the number of files to enhance performance.
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-**Separate Warehouses**
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-**Optimize for Cost & Performance**
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- Avoid running simple queries like `SELECT 1` to minimize credit usage.
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- Use bulk loading (`COPY`) rather than individual `INSERT` statements.
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- Monitor long-running queries and optimize them to improve performance.
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- Use separate warehouses for **data loading** and **query execution**.
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- Create distinct warehouses for **development**, **testing**, and **production** environments.
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-**Auto-Suspend**
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- Enable auto-suspend to save credits when the warehouse is idle.
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-**Data Loading Tips**
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-**Disable Auto-Suspend for Frequent Queries**
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-Keep warehouses active for frequent or repetitive queries to maintain cache and avoid delays.
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- Smaller warehouses (Small, Medium) are suitable for data loading.
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-Optimize file size and the number of files to enhance performance.
- Multi-cluster scaling automatically adjusts resources based on workload demand.
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-**Monitor & Adjust Usage**
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- Regularly review warehouse usage and resize as needed to balance cost and performance.
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## Warehouse Access Control
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Databend Cloud allows you to manage warehouse access with role-based controls by assigning a specific role to a warehouse, so only users with that role can access the warehouse.
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:::note
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Warehouse access control is *not* enabled out of the box. To enable it, go to **Support** > **Create New Ticket** and submit a request.
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Warehouse access control is _not_ enabled out of the box. To enable it, go to **Support** > **Create New Ticket** and submit a request.
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:::
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To assign a role to a warehouse, select the desired role in the **Advanced Options** during the warehouse creation or modification process:
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### Cost Calculation
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Multi-Cluster Warehouses are billed based on the number of active clusters used during specific time intervals.
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Multi-Cluster Warehouses are billed based on the number of active clusters used during specific time intervals.
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For example, for an XSmall Warehouse priced at $1 per hour, if one cluster is actively used from 13:00 to 14:00 and two clusters are actively used from 14:00 to 15:00, the total cost incurred from 13:00 to 15:00 is $3 ((1 cluster × 1 hour × $1) + (2 clusters × 1 hour × $1)).
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import SearchSVG from '@site/static/img/icon/search.svg'
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<!-- #ifcndef -->
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:::tip
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The AI-powered features are not available in some regions.
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With the inclusion of AI-powered features, Databend Cloud allows you to engage in natural language conversations to receive help, assistance, and solutions. These AI-powered features are enabled by default, but you can disable them if desired by navigating to **Manage** > **Settings**.
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-**History Data**: Used by Time Travel to store historical data or data from dropped tables.
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-**Temporary Data**: Used by the system to store spilled data.
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If the data size is significant, you can run several commands ([Enterprise Edition Features](/guides/overview/editions/dee/enterprise-features)) to delete these data and free up storage space.
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If the data size is significant, you can run several commands ([Enterprise Edition Features](/guides/products/dee/enterprise-features)) to delete these data and free up storage space.
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