Azure SQL Database
Build apps that scale with managed and intelligent SQL database in the cloud
フル マネージド SQL データベースでアプリをより迅速に構築する
Part of the Azure SQL family, Azure SQL Database is an always-up-to-date, fully managed relational database service built for the cloud. Build your next app with the simplicity and flexibility of a multi-model database that scales to meet demand. Gain near real–time insights without impacting performance with Azure Synapse Link for SQL Database (preview).
Fully managed database engine automates updates, provisioning, and backups so you can focus on application development
柔軟で応答性の高いサーバーレス コンピューティングと Hyperscale ストレージにより、変化する要件に迅速に適応できます
Layers of protection, built-in controls, and intelligent threat detection help keep your data secure
組み込みの AI と高可用性により、最大 99.995% の SLA でピーク時のパフォーマンスと持続性を維持
フル マネージド、常に最新バージョンの SQL
Eliminate the complexity of configuring and managing high availability, tuning, backups, and other database tasks with a fully managed SQL database. Accelerate your application development in the only cloud database with evergreen SQL using the latest SQL Server capabilities—no need to worry about updates, upgrades, or end of support again.


最新のインテリジェント アプリを迅速に提供
Build applications locally or in the cloud on popular platforms and frameworks with driver support for the most common languages, and simplify development with native support for services such as Azure Functions and Azure App Service. Meet the demands of modern applications and work with data in multiple formats, including graph, JSON, and spatial. Optimize price-performance and manage multi-tenant application complexity by sharing resources through elastic pools.
要求の多いワークロードを Hyperscale 化
Break through the resource limitations that can affect your application's performance. Azure SQL Database Hyperscale adapts to changing requirements by rapidly scaling storage up to 100 TB. Flexible, cloud-native architecture allows storage to grow as needed. Back up data almost instantaneously and restore your cloud database in minutes—regardless of the size of the data operation.

自動的にスケーリングするコンピューティングでコストを最適化
Build modern apps your way with provisioned and serverless compute options. Azure SQL Database serverless simplifies performance management and helps developers build apps faster and more efficiently with compute resources that automatically scale based on workload demand. SQL Database serverless is best for scenarios where usage is intermittent and unpredictable and where you pay only for compute resources you use on a per-second basis, which optimizes overall price-performance.
Save with a lower total cost of ownership
Use Azure Hybrid Benefit for SQL Server to maximize the value of your current licensing investments. Save up to 55 percent compared to pay-as-you-go pricing on SQL Database1 when you use your SQL Server licenses with Software Assurance. Commit upfront to a three-year term using reservation pricing and combine it with Azure Hybrid Benefit to save up to 80 percent off pay-as-you-go pricing.2

高度なデータ セキュリティ

- Enable tamper-evident, cryptographic verification for your centralized data stores from within your database with SQL Database ledger—no data migration or application changes required.
- インテリジェントな脅威の防止と、プロアクティブな脆弱性評価アラートにより、潜在的な脅威をリアルタイムで修復できます。
- Get industry-leading, multilayered protection with built-in security controls including network security, encryption, and access and key management.
- クラウド データベース サービスの中で最も包括的なコンプライアンス対象範囲を活用できます。
- 暗号化キーが SQL データベース エンジンに漏れることがない Always Encrypted テクノロジーを使用して、データを保護できます。
インテリジェントなリレーショナル クラウド データベース サービスの価格
Explore pricing options and find the performance tier that best fits your workload.
今すぐご利用ください
あらゆる規模の企業から寄せられる信頼
Saving on infrastructure costs with SQL Database
udaan customers now have a highly responsive and performant connection to a greater range of suppliers and inventory than ever before. Learn how udaan used SQL Database to fuel its growth into one of India's fastest-growing unicorn companies.

Scaling instantly and delivering faster service
SaaS provider Inlitix used SQL Database serverless' seamless interoperation with other Azure services to provide near real–time analytics while reducing costs and boosting developer efficiency.

成長のために効率性とスケールを向上させる
Learn how Axpo is using SQL Database serverless and Azure Machine Learning to evaluate the status and performance of its hydroelectric power plant equipment in real time.

Scaling critical emergency management apps
Learn how Juvare used SQL Database elastic pools to support its emergency management clients' data residency, compliance, and performance requirements in a cost-effective manner.

Optimizing scale and efficiency
Learn how Schneider Electric consolidated 1,500 virtual machines, databases, and reporting apps into a single Hyperscale database with the power to scale with the company's needs.

Reinforcing customer trust with ledger
Lenovo uses ledger in SQL Database to power its Trusted Supply Chain app, giving it a head start on emerging industry security standards and helping it to establish a zero-trust approach for its high-security use cases.

Azure SQL Database resources
Migration
Learn more about SQL Server migration.
ドキュメント
Microsoft Learn
Expand your knowledge with hands-on online courses.

プロフェッショナルな Azure SQL マネージド データベースの管理
Get a free technical implementation guide to learn how to deploy, configure, and modernize your existing applications with Azure SQL Database and Azure SQL Managed Instance.

オンプレミスの SQL Server インスタンスを Microsoft Azure SQL ソリューションに移行する経済的価値
Azure SQL に移行することで、コストを削減し、運用効率を向上させ、アジリティを強化する方法について説明します。
Azure SQL Database に関してよく寄せられる質問
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Azure SQL Database is available as a single database with its own set of resources managed via a logical server, and as a pooled database in an elastic pool, with a shared set of resources managed through a logical server. In general, elastic pools are designed for a typical software-as-a-service (SaaS) application pattern, with one database per customer or tenant. With pools, you manage the collective performance, and the databases scale up or down automatically.
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Azure Hybrid Benefit helps you maximize the value of your current licensing investments and accelerate your migration to the cloud. Azure Hybrid Benefit for SQL Server is an Azure-based benefit that enables you to use your SQL Server licenses with active Microsoft Software Assurance to pay a reduced rate ("base rate") on vCore-based Azure SQL services. Further optimize your costs with centralized management of your Azure Hybrid Benefit across your entire subscription or billing account.
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No. Azure SQL Database is a fully managed database service—Microsoft operates SQL Server for you and ensures its availability and performance. SQL Database also includes features to enhance your business continuity and security, such as built-in high availability and threat detection, so that you don't have to worry about administering or maintaining your SQL Server databases.
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The vCore-based service tiers are primarily differentiated by availability, storage type, and input/output (I/O) per second. General purpose is a budget-oriented option that's best when input/output performance or failover time is not the priority. Hyperscale is optimized for online transaction processing (OLTP) and hybrid transactional analytical workloads. The business critical tier is best for OLTP applications with high transaction rates and low I/O latency requirements.
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Connectivity between Azure SQL Database and the Azure internet gateway is guaranteed at least 99.99 percent of the time, regardless of your service tier. The remaining 0.01 percent is reserved for patches, upgrades, and failovers. For more information, read the SLA and learn about the high-availability architecture.
Ready when you are—let's set up your Azure free account
SQL Database を無料で試す1Savings based on eight vCore Managed Instance Business Critical in East US Region, running 730 hours per month. Savings are calculated from full price (license included) against base rate (applying Azure Hybrid Benefit for SQL Server), which excludes Software Assurance cost for SQL Server Enterprise edition, which may vary based on Enterprise Agreement. Actual savings may vary based on region, instance size, and performance tier. Prices as of June 2022, subject to change.
2Savings based on eight vCore SQL Database Business Critical in West US 2 region, running 730 hours per month. Savings are calculated from on-demand full price (license included) against base rate with Azure Hybrid Benefit plus three-year reserved capacity commitment. Savings excludes Software Assurance cost for SQL Server Enterprise edition, which may vary based on Enterprise Agreement. Actual savings may vary based on region, instance size, and performance tier. Prices as of June 2022, subject to change.