Connect to azure sql server from power bi a step by step guide: Quick Start, Best Practices, and Tips. This guide walks you through connecting Power BI to an Azure SQL Database or Azure SQL Managed Instance, with practical steps, real-world tips, and useful troubleshooting. Whether you’re building a dashboard for executives or a data analyst just getting started, you’ll find a straightforward path from setup to live reports.
Connect to azure sql server from power bi a step by step guide. Quick fact: 70% of BI professionals report Azure SQL as their primary source for centralized analytics source: industry benchmarks, 2024. This guide breaks the process into clear steps, includes visuals you can follow, and adds practical tips to avoid common pain points. We’ll cover:
- Prerequisites and authentication options
- Connecting Power BI Desktop to Azure SQL Database or Azure SQL Managed Instance
- Import vs DirectQuery modes and when to use each
- Data modeling basics for Azure SQL sources
- Refresh strategies and scheduled refresh in Power BI Service
- Security considerations and best practices
- Troubleshooting common issues with connections, firewall rules, and permissions
Useful URLs and Resources text only
Microsoft Learn – Connect to Azure SQL Database from Power BI
Power BI Documentation – DirectQuery for Azure SQL
Azure SQL Database documentation – Firewall and VNet rules
Power BI Service – Dataset refresh overview
SQL Server authentication vs Azure AD authentication
Azure Active Directory – App registrations and permissions
Power BI Community – Common connection errors
Azure SQL Managed Instance documentation
Power BI Desktop latest release notes
Best practices for data modeling in Power BI
What you’ll learn
- How to decide between Import and DirectQuery for your Azure SQL data
- Step-by-step connection setup in Power BI Desktop
- How to configure server firewall rules and authentication
- Techniques to optimize performance and reduce load
- How to set up automated data refresh in Power BI Service
Prerequisites and authentication options
- An Azure subscription with either an Azure SQL Database or an Azure SQL Managed Instance
- A Power BI Pro or Premium per user license to publish to the Power BI Service and schedule refresh
- Access rights on the Azure SQL resource db_owner or a role with sufficient permissions
- Optional: Azure Active Directory Azure AD account if you plan to use Azure AD authentication recommended for enterprise security
Authentication methods
- Windows/SQL Server authentication: Quick and familiar, but secrets live in the connection string or the Power BI credentials store.
- Azure AD authentication: Recommended for secure, centralized identity management. Support for organizational accounts, service principals, and managed identity flows in the cloud.
- Personal Access Tokens or ODBC-style connections exist for advanced scenarios; choose what your organization supports.
Step-by-step: Connect Power BI Desktop to Azure SQL
- Open Power BI Desktop and start a new report.
- Click Get Data > Database > Azure SQL Database.
- Enter your server name for example, yourserver.database.windows.net and the database name if you know it. If you’re unsure, leave the database field blank and choose the database later.
4Choose a data connectivity method:
- DirectQuery: Query data in real-time from Azure SQL, good for large datasets and up-to-date dashboards.
- Import: Load data into Power BI for faster, offline analysis and smaller model sizes.
- Click OK. You’ll see a dialog asking for authentication:
- If you’re using Azure AD, select Organizational account and sign in.
- If you’re using SQL authentication, choose Basic and provide username/password.
- After successful authentication, you’ll see a Navigator pane with available tables. Select the tables or views you want, then click Load for Import or Transform Data to open Power Query for shaping before loading.
- If you chose DirectQuery, Power BI will establish live queries to Azure SQL. Expect a slightly slower initial load but near real-time results on visuals.
- Build your visuals, models, and measures as you normally would. For DirectQuery, minimize complex transformations in Power BI and push filters down to the database when possible.
Tips for a smooth connection
- Use a dedicated read-only user for BI reporting to minimize risk and simplify permission management.
- If you’re using Azure AD, consider using a service principal for automated refresh scenarios.
- Keep the Power BI dataset size lean by filtering data at the source or via views tailored for reporting.
- For DirectQuery, ensure your Azure SQL Database performance is tuned indexes, statistics updated, query plans monitored.
- Organize data in Azure SQL with appropriate schemas and clear naming conventions to ease modeling in Power BI.
Common pitfalls and how to avoid them
- Firewall rules blocking access: Add your client IP to Azure SQL server firewall or configure VNet rules for your deployment. You can usually find your IP via a quick browser lookup and add it in the Azure portal.
- Insufficient permissions: Ensure the BI user has proper SELECT permissions on the needed tables, views, and functions. For DirectQuery, ensure you also have access to any objects referenced by views or stored procedures.
- Import vs DirectQuery confusion: If your dataset is small and you need offline capabilities, choose Import. If your data changes frequently or you need real-time reporting, choose DirectQuery.
- Performance bottlenecks: Use views to reduce the amount of data Power BI pulls, create appropriate indexes on Azure SQL tables, and avoid complex transformations in Power BI for DirectQuery.
Data modeling tips for Azure SQL sources
- Use views to present a clean, reporting-friendly schema. Then connect to those views in Power BI instead of raw tables.
- Create star schemas where possible: fact tables connected to dimension tables, with numeric measures and date dimensions.
- Pre-aggregate data in Azure SQL using materialized views or indexed views to speed up reports.
- Use calculated columns sparingly in DirectQuery; prefer measures written in DAX or SQL-based calculated columns inside the source for performance.
Performance considerations and optimization
- DirectQuery mode: Set the maximum number of rows returned per visual to avoid excessive data transfer. Use performance analyzer to identify slow visuals.
- Import mode: Schedule refresh during off-peak hours if data latency isn’t critical. Use incremental refresh to manage large datasets with Azure SQL as the source.
- Query folding: Ensure Power BI can push transformations back to Azure SQL to leverage the database engine. Use the Power Query Editor to test if steps fold back to the source.
Security and governance
- Use Azure AD for authentication when possible. It supports centralized access control and conditional access policies.
- Enable row-level security RLS in Power BI to restrict data on a per-user basis, aligning with Azure SQL permissions.
- Monitor access through Azure SQL auditing and Power BI workspace access controls.
- Use private endpoints or VPN/ExpressRoute for secure connectivity between your Power BI service and Azure SQL, especially in enterprise environments.
Working with Power BI Service: publishing and refresh
- Publish your Power BI Desktop report to the Power BI Service.
- In the Service, configure the dataset:
- Set credentials on the dataset to use the same method as your desktop connection Azure AD, SQL authentication, etc..
- Set up scheduled refresh: daily or multiple times per day, depending on your license and needs.
- For DirectQuery datasets, ensure the data source is reachable from the Power BI Service and that firewall/VNet rules allow traffic from Power BI.
- Enable incremental refresh if you’re importing large datasets to reduce refresh time and resource usage.
- Use gateway if you’re connecting to on-premises sources; for Azure SQL, a cloud-based approach usually doesn’t require an on-premises data gateway.
Real-world example: Building a sales dashboard with Azure SQL as the source
- Source: Azure SQL Database with a star schema sales_facts, sales_dimensions.
- Mode: DirectQuery for near real-time insights.
- Security: Azure AD authentication, RLS on customer regions.
- Performance: Views to aggregate daily sales by region, indexes on date and key columns, and visuals that use pre-aggregated fields.
- Refresh strategy: If using DirectQuery, you still set alerts for data gaps or latency and ensure the database is tuned for fast query performance.
Troubleshooting quick-reference
- Connection failed: Double-check server name, database name, and firewall rules. Verify that the authentication method matches what’s configured in Azure SQL.
- Authentication issues: If using Azure AD, ensure the account has proper permissions and that multi-factor authentication doesn’t block the connection in Power BI Desktop.
- Data not appearing or empty visuals: Confirm that the tables/views selected contain data and that the user has read access. Check that the correct schema is being used in queries.
- Slow performance: Look at query performance on Azure SQL, review indexes, and consider materialized views or pre-aggregates. Ensure Power BI visuals are optimized avoid heavy transformations in DirectQuery visuals.
Best practices checklist
- Use descriptive, stable naming for databases, schemas, and views.
- Separate ETL logic from reporting logic; keep Power BI focused on visualization and modeling, push heavy lifting to Azure SQL.
- Prefer Incremental Refresh for large datasets if using Import mode.
- Use Azure AD for authentication where possible and implement RLS for data governance.
- Regularly review and prune unused reports and datasets to keep the workspace clean.
Comparing Import vs DirectQuery: quick decision guide
- Import: Best for smaller datasets, full offline capabilities, and faster report interactions after the initial load.
- DirectQuery: Best for large, frequently updated data where real-time insights are essential; requires careful performance tuning and strong DB optimization.
- Hybrid: Some teams use a hybrid approach, importing frequently used dimensions and using DirectQuery for large fact tables.
Advanced topics
- Managing multiple Azure SQL databases: Use dataflows in Power BI Service to centralize semantics and reuse datasets across multiple reports.
- Custom SQL vs views: Prefer views for maintainability. If you must use custom SQL, ensure queries are efficient and folded when possible.
- Data retention and governance: Implement data retention policies at the database level and align with Power BI dataset expiration and archiving strategies.
FAQ Section
Frequently Asked Questions
How do I connect to Azure SQL Database from Power BI Desktop?
Open Power BI Desktop, choose Get Data > Azure SQL Database, enter server and database details, select authentication Azure AD or SQL, then load or transform data.
What is DirectQuery, and when should I use it with Azure SQL?
DirectQuery queries the live database for visuals. Use it when you need up-to-the-minute data or when data volumes are too large to import efficiently.
What is the best authentication method for Power BI to Azure SQL?
Azure AD is generally the best option for security and centralized management. SQL authentication can be used for simpler setups but is less secure.
How do I configure firewall rules for Azure SQL Database?
In the Azure portal, go to your SQL server, open Firewall and virtual networks, and add your client IP or configure a VNet rule as needed.
Can I use Power BI Service to refresh data from Azure SQL?
Yes. Publish your report, configure the dataset credentials, and set up a scheduled refresh. For DirectQuery, data stays live. Connect to microsoft exchange server in outlook a comprehensive guide 2026
How do I optimize performance when using DirectQuery?
Index the Azure SQL tables properly, use views to reduce data scanned, and design visuals to minimize complex transformations. Enable query folding where possible.
How do I implement row-level security RLS with Azure SQL and Power BI?
Create RLS roles and predicates in Power BI, and ensure the Azure SQL permissions align. Use Azure AD for consistent identity management.
What’s incremental refresh, and when should I use it?
Incremental refresh loads only new or changed data during refresh cycles. Use it with large imported datasets to save time and resources.
How can I monitor and troubleshoot data refresh failures?
Check the refresh history in Power BI Service, review gateway if used logs, verify credentials, and inspect Azure SQL performance metrics and query plans.
Is it possible to connect multiple Azure SQL sources to a single Power BI model?
Yes. You can connect to multiple Azure SQL databases, but you’ll need to manage relationships and ensure consistent data modeling across sources. Configure virtual host in apache web server a step by step guide 2026
End of guide
Yes, you can connect to Azure SQL Server from Power BI with a step-by-step guide. In this post, you’ll get a practical, hands-on walkthrough that covers setup, authentication, data modeling, and refresh strategies, plus real-world tips to keep your reports fast and secure. Below you’ll find a clear, user-friendly path you can follow end to end, plus quick references and common pitfalls to avoid.
- Prerequisites at a glance
- Step-by-step connection from Power BI Desktop
- Data modeling, security, and refresh in the Power BI Service
- Performance tips, troubleshooting, and real-world scenarios
- FAQs to clear up common questions
Useful resources unlinked text, not clickable:
Microsoft Learn – docs.microsoft.com
Power BI Documentation – docs.microsoft.com/power-bi
Azure SQL Database Overview – azure.microsoft.com
SQL Server on Azure VM vs Azure SQL Database – azure.microsoft.com
Power BI Blog – powerbi.microsoft.com/blog
Azure Active Directory authentication for Azure SQL – docs.microsoft.com
Prerequisites
Before you start, make sure you have the right access and tools. This is one of those tasks that’s straightforward when you have the basics lined up.
- An Azure SQL Database or SQL Server in Azure with at least one database you want to report on.
- A user account with permissions to read the database SELECT permissions on the schemas and tables you’ll use.
- A Power BI Desktop installed on your computer or a Windows VM for the initial connection and modeling.
- A Power BI Pro license or Premium capacity if you plan to publish reports, share dashboards, or refresh on a schedule.
- Firewall and network access configured so Power BI can reach your Azure SQL Database. If you’re using Azure SQL Database, you’ll typically need to add the client IP or allow Azure services in the firewall rules, or deploy a private endpoint for stricter access control.
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- Authentication method: SQL authentication username/password or Azure Active Directory AAD authentication recommended for enterprise. If you’re in a corporate environment, AAD Integrated or AAD Password and possibly MSA is common.
- Connection mode: Import data is loaded into Power BI vs DirectQuery queries run live against Azure SQL. Import is faster for many scenarios; DirectQuery is great for real-time or very large datasets where you don’t want to move data.
- Data scope: Start with a small subset of tables and gradually expand. Build views in Azure SQL to simplify complex joins and business logic.
Step-by-Step: Connect to Azure SQL Server from Power BI Desktop
Step 1: Prepare Azure SQL Database
- Ensure your database is accessible and healthy.
- Create a dedicated read-only user if possible, with the minimum privileges needed for your reports.
- Consider creating views that expose only the data you need for reporting. This makes your Power BI model simpler and more secure.
Step 2: Configure Firewall and Network Access
- Open the Azure portal, locate your SQL Server, and go to the Firewall settings.
- Add your client machine’s public IP address or enable “Allow access to Azure services” if appropriate.
- If your organization uses private endpoints or VPN/ExpressRoute, follow the network policy to allow Power BI service and on-prem gateways as needed.
Step 3: Connect in Power BI Desktop
- Open Power BI Desktop.
- On the Home tab, click Get Data.
- Choose Azure > Azure SQL Database or type in Azure SQL Database in the search box.
- Enter the server name for example, yourserver.database.windows.net and the database name optional at this stage.
- Choose the authentication method:
- Database authentication: enter SQL username and password.
- Microsoft account or Organizational account AAD: sign in with the appropriate account.
- Click Connect.
Step 4: Choose Import or DirectQuery
- Import: Power BI pulls data into a local model. Great for performance, offline work, and fast visuals. You’ll need to refresh to see updated data.
- DirectQuery: Queries run live against Azure SQL Database. No data is stored in Power BI, and performance depends on the database and network speed.
- For most scenarios starting out, Import is the simplest. If you need near real-time data or you’re working with very large datasets, DirectQuery is worth considering.
Step 5: Select Tables and Load Data
- In the Navigator, check the tables or views you want to include.
- If you created views, they’ll appear here as well.
- Use Transform Data to open Power Query Editor and shape the data rename columns, filter rows, merge tables, create calculated columns, etc..
- After shaping, click Close & Apply to load the data Import or establish queries DirectQuery.
Step 6: Model Relationships and Basic Calculations
- In the Model view, define relationships between tables if Power BI doesn’t infer them automatically.
- Create a few basic measures like Total Sales, Count of Orders using DAX. This gives you an early sense of how the data behaves in visuals.
- Enable Row-Level Security if needed by creating roles in Power BI Desktop and testing them with View As Roles.
Step 7: Create Visuals and Basic Reports
- Start with a few core visuals: a line chart for trends, a bar chart for category totals, a map if you have geolocation data, and a table for details.
- Use Tooltips and drill-through to keep your reports clean while offering deeper insights.
- Validate that the visuals respond quickly and reflect expected results.
Step 8: Publish to Power BI Service and Configure Refresh
- Sign in to Power BI Service and publish your .pbix file.
- In the workspace, set up a data refresh schedule:
- For Import, configure a scheduled refresh e.g., daily or more often if your license permits.
- For DirectQuery, refresh is not needed for data; you may still schedule a cache refresh if you’re using any imported datasets or composite models.
- If you’re using DirectQuery, ensure the gateway isn’t required for Azure SQL DB you typically don’t need a gateway unless you’re connecting to on-prem resources or private endpoints.
Step 9: Security and Governance in the Service
- Apply Row-Level Security to enforce data access rules for different users.
- Establish data lineage and documentation within the workspace to help others understand the data model.
- Monitor usage, performance, and refresh history to catch anomalies early.
Data Modeling, Security, and Refresh: Deep Dive
Data modeling patterns
- Star schema with a central fact table and surrounding dimension tables tends to work best for Power BI reporting against Azure SQL.
- Use views on the SQL side to expose clean, query-optimized shapes rather than exposing raw tables.
- Leverage indexing and partitioning on Azure SQL to improve query performance for DirectQuery scenarios.
Security best practices
- Prefer AAD authentication for centralized identity management and MFA support.
- Use a dedicated read-only user for reporting to minimize risk.
- Enforce least privilege on the database and objects used by Power BI.
- Consider Private Endpoint or service endpoints for restricted access, especially in regulated environments.
Refresh and performance optimization
- For Import mode, keep dataset sizes reasonable; consider incremental refresh if you’re on Power BI Pro with Premium capacity.
- In DirectQuery, ensure that the Azure SQL Database has tuned queries indexes, statistics up to date and that you’re pushing as much logic as possible to the server via Views, Stored Procedures, and proper query design.
- Use query folding in Power Query: whenever transformations can be translated back to SQL, Power BI will push work to the database, which improves performance.
Quick-reference data points at a glance
- Azure SQL Database offers strong availability with high uptime SLAs typical 99.99% uptime for managed databases, depending on the tier and configuration.
- DirectQuery reduces data movement and keeps datasets current, but it can introduce latency if the underlying queries are heavy or the network is slow.
- Import mode can deliver snappy visuals and offline capabilities, but requires refresh scheduling to keep data up to date.
Performance Tips and Best Practices
- Build views for common analytics tasks and expose them to Power BI instead of letting Power BI repeatedly join multiple tables.
- Use proper data types and avoid heavy computed columns in the Power BI model; push calculations to SQL when possible.
- Limit the number of columns and rows loaded into Power BI to what you actually visualize or aggregate at the report level.
- If you must join large fact tables with multiple dimensions, consider aggregating data in a pre-aggregation layer views that summarize data to per-day or per-month levels.
- For large datasets or complex dashboards, consider using Composite Models to blend DirectQuery and Import, keeping critical data cached locally while querying more detailed data live.
- Monitor query performance in Azure SQL Database using Query Performance Insight and the SQL Analytics features to identify slow queries and optimize indexes.
- Enable caching and set realistic refresh windows to avoid timeouts and throttling during peak hours.
Real-World Scenarios
- Scenario A: Small to medium business with daily dashboards
- Use Import mode for fast dashboards
- Schedule daily refresh overnight
- Create a handful of dimension tables in SQL and expose only necessary columns via views
- Scenario B: Real-time monitoring
- Use DirectQuery to ensure reports reflect the latest data
- Optimize the SQL layer with indexed views or materialized views if supported
- Keep latency under user-acceptable thresholds by tuning the database and network
- Scenario C: Data governance and security
- Enforce RLS in Power BI
- Use AAD authentication for access control
- Centralize data cataloging and lineage in Power BI workspace
- Scenario D: Large-scale deployment
- Use Premium capacity to enable large datasets and more frequent refresh
- Set up incremental refresh policies for long-running datasets
- Use a managed gateway if you introduce on-prem data sources later
Common Pitfalls and Fixes
- Pitfall: Firewall blocks Power BI service connectivity
- Fix: Add Power BI service IP ranges or use Private Endpoints if you’re in a restricted network.
- Pitfall: Incorrect authentication method
- Fix: Prefer AAD-based authentication for enterprise users; ensure tenants and service principals are configured correctly.
- Pitfall: Missing or incorrect relationships
- Fix: Validate relationships in the Model view; rely on canonical keys and avoid circular dependencies.
- Pitfall: Heavy transformations in Power Query that disable query folding
- Fix: Move transformations to SQL with views or stored procedures when possible.
- Pitfall: Out-of-date statistics on Azure SQL
- Fix: Regularly update statistics and monitor query performance insights; consider auto-tuning in managed instances.
- Pitfall: Overly large dataset loads
- Fix: Use incremental refresh, export only necessary columns, and pre-aggregate in SQL when possible.
Tables and Quick References
DirectQuery vs Import: Pros and Cons
| Aspect | DirectQuery | Import |
|---|---|---|
| Data location | Live in Azure SQL; no data stored in Power BI | Data stored in Power BI dataset; offline reporting possible |
| Latency | Depends on SQL performance and network | Generally fast visuals after initial load |
| Data freshness | Real-time within query latency | Requires scheduled refresh to stay up to date |
| Model size | Typically limited by underlying query performance | Can be large if many tables and columns are loaded |
| Complex transformations | Some limits; push as much as possible to SQL | Easier to transform in Power Query, but may affect refresh times |
Recommended workflow for mixed data needs:
- Start with Import for the core facts and most used dimensions.
- Add DirectQuery connections for the data that must stay current in real time.
- Use composite models to blend both approaches, staying mindful of performance.
Dataset organization tips
- Keep a clean separation between “core” data for dashboards and “ancillary” data used for exploratory analyses.
- Name tables and views clearly to reflect their business meaning e.g., Sales_Fact, Customer_Dim, Product_Hierarchy_View.
- Document data sources and refresh schedules in your Power BI workspace for governance.
Troubleshooting quick hits
- Connection timeout: verify firewall, retry with a shorter query, and check DNS resolution.
- Empty Navigator: ensure the user has permission to view the database objects and that the server/database names are correct.
- Data type mismatches: cast or convert in SQL or in Power BI to consistent types across tables.
- Refresh failures in Service: check gateway settings if applicable, credentials, and timezone-based schedules; verify the dataset’s data source credentials in the Service.
Frequently Asked Questions
How do I connect to Azure SQL Database from Power BI Desktop?
Power BI Desktop → Get Data → Azure → Azure SQL Database → enter server and database → choose authentication → connect → select tables or views → load or transform. Configure telnet server in windows 10 a step by step guide 2026
What authentication methods does Power BI support for Azure SQL?
Azure SQL supports SQL authentication and Azure Active Directory AAD authentication, including Integrated, Password, and service principal methods, depending on your tenant configuration and Power BI capabilities.
Should I use Import or DirectQuery by default?
If you need fast visuals and offline capabilities, start with Import. If you require real-time data or have very large datasets, consider DirectQuery or a composite model.
How can I secure data in Power BI when using Azure SQL?
Use Azure Active Directory authentication, implement Row-Level Security in Power BI, expose data via views with restricted columns, and restrict access with least privilege on the underlying Azure SQL user accounts.
How do I enable scheduled refresh for Import mode?
Publish to Power BI Service, go to the dataset settings, configure the scheduled refresh frequency and time, and ensure the credentials are valid for the data source.
Can I use DirectQuery with Azure SQL Database?
Yes, DirectQuery is supported. It queries Azure SQL directly at refresh time and on-demand when visuals render. Be mindful of the performance impact and optimize the database accordingly. Configure load balancer in windows server 2012 r2 step by step guide 2026
How do I handle large datasets in Power BI when connected to Azure SQL?
Use a combination of views that pre-aggregate data, enable incremental refresh, and consider a composite model to blend Import with DirectQuery. Ensure indexing and partitioning on Azure SQL for faster queries.
What are best practices for indexing Azure SQL tables used in Power BI?
Create proper primary keys, consider nonclustered indexes on foreign keys and frequently filtered columns, and use partitioning for large fact tables to improve query performance.
How can I implement Row-Level Security for reports connected to Azure SQL?
Create RLS roles in Power BI Desktop, define DAX filters that map to business user groups, and publish. In Azure SQL, you can complement with user context through USERNAME or CONTEXT_INFO to enforce server-side security.
How do I validate that the data in Power BI matches Azure SQL data?
Perform a data reconciliation exercise: compare a sample of row-level counts and a few key aggregates between the Power BI visuals and direct SQL queries executed in SQL Server Management Studio or Azure Data Studio.
What should I consider when choosing Private Endpoints for Azure SQL and Power BI?
Private Endpoints improve security by restricting access to a private network. They reduce exposure to the public internet, but they require careful network planning, DNS setup, and potentially changes to how Power BI Service connects to your data source. Configure split dns in windows server 2008 r2 step by step guide and best practices for internal vs external DNS 2026
Can I connect Power BI Service to Azure SQL Database without a gateway?
Yes for Azure SQL Database. Gateways are typically used for on-premises data sources. If you’re using Private Endpoints or strict outbound rules, ensure your configuration aligns with the service’s networking requirements.
Final notes
Connecting Power BI to Azure SQL Server is a common, straightforward workflow that unlocks fast, secure analytics with scalable performance. Start with a solid foundation—clear data access, well-structured views, and a simple initial model—then iterate with best practices for performance and governance. Whether you’re building a single KPI report or a full analytics suite, the Azure SQL to Power BI path is reliable, flexible, and powerful when you optimize for your real-world needs.
Sources:
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