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  1. 1. Windows Azure SQL Database for Beginners (tips & tricks) Tobiasz Janusz Koprowski Independent Consultant, MCT, MVP
  2. 2. Introduction Tobiasz Janusz Koprowski Independent Consultant, MCT, MVP @KoprowskiT
  3. 3. AGENDA • PART ONE: Slide Talks plan, compability, features, functionality • PART TWO: Show Time azure portal, database portal, management studio, 3rd party tools • PART THREE: The Future of DBA short discussion... • APPENDIX additional links, q&a
  4. 4. PART ONE: Slide Talks
  5. 5. PART ONE: Private > IaaS > PaaS
  6. 6. Understanding Cloud Services
  7. 7. PART ONE: Azure Short Introduction • Windows Azure Compute: Virtualized compute environment based on Windows Server Storage: Durable, scalable, & available storage Management: Automated, model-driven management of the service • SQL Azure (cloud-based database) Database: Relational processing for structured/unstructured data • App Fabric (.NET services) Service Bus: General purpose application bus Access Control: Rules-driven, claims-based access control
  8. 8. Data Centers for Azure Platform
  9. 9. Data Centers for Azure Platform North America US Central - Iowa US East – Virginia / US East 2 - Virginia US Gov Iowa – Iowa / US Gov Virginia - Virginia US North Central - Illinois US South Central - Texas US West – California Asia Asia Pacific East - Hong Kong Asia Pacific Southeast – Singapore Europe North Europe - Dublin, Ireland West Europe - Amsterdam, Netherlands Japan Japan East - Saitama Prefecture Japan West - Osaka Prefecture Oceania (announced, coming soon) Australia - Sydney, New South Wales Australia - Melbourne, Victoria South America (preview) Brasil - Sao Paulo, Some datacenters have servers grouped inside containers - each containing 1800-2500 servers.
  10. 10. Security Requirements for Azure Platform As a Service Provider Microsoft has an obligation to passing the several rules for security: • ISO/IEC 27001:2005 • SAS 70 Type 1 and II Also they passing (continuisly) several data securing audits: • PCI DSS • SOX compliance • HIPAA compliance And of course requirements for Data Centers: • Physical security of the data centers (locks, cameras, biometric devices, card readers, alarms) • Firewalls, application gateways and IDS to protect the network • Access Control Lists (ACLs) applied to virtual local area networks (VLANs) and applications • Authentication and authorization of persons or processes that request access to data • Hardening of the servers and operating system instances • Redundant internal and external DNS infrastructure with restricted write access • Securing of virtual machine objects • Securing of static and dynamic storage containers
  11. 11. Security Requirements • ISO/IEC 27001:2005 Audit and Certification ISO Scope: The following Azure features are in scope for the current ISO audit: Cloud Services (including Fabric and RDFE), Storage (Tables, Blobs, Queues), Virtual Machines (including with SQL Server), Virtual Network, Traffic Manager, Web Sites, BizTalk Services, Media Services, Mobile Services, Service Bus, Workflow, Multi-Factor Authentication, Active Directory, Right Management Service, SQL Database, and HDInsight. This includes the Information Security Management System (ISMS) for Azure, encompassing infrastructure, development, operations, and support for these features. Also included are Power BI for Office 365 and Power Query Service. • SOC 1 and SOC 2 SSAE 16/ISAE 3402 Attestations Scope: The following Azure features are in scope for the current SOC 1 Type 2 and SOC 2 Type 2 attestations: Cloud Services (includes stateless Web, and Worker roles), Storage (Tables, Blobs, Queues), Virtual Machines (includes persistent virtual machines for use with supported operating systems) and Virtual Network (includes Traffic Manager). • United Kingdom G-Cloud Impact Level 2 Accreditation Scope: The following Azure features are in scope for the IL2 accreditation: Virtual Machines, Cloud Services, Storage (Tables, Blobs, Queues, Drives), and Virtual Network. • Cloud Security Alliance Cloud Controls Matrix • Federal Risk and Authorization Management Program (FedRAMP) • Payment Card Industry (PCI) Data Security Standards (DSS) Level 1 • HIPAA Business Associate Agreement (BAA) • Family Educational Rights and Privacy Act (FERPA)
  12. 12. 碧 云 寺 T e m p l e o f A z u r e C l o u d s
  13. 13. Microsoft Azure Services
  14. 14. Microsoft Azure Services Azure Active Directory API Management Application Insights Automation Backup Batch BizTalk Services Azure CDN Cloud Services Data Factory DocumentDB Event Hubs ExpressRoute HDInsight Key Vault Machine Learning Managed Cache Media Services Mobile Engagement Mobile Services Multi-Factor Authentication Notification Hubs Operational Insights Redis Cache RemoteApp Scheduler Azure Search Service Bus Site Recovery SQL Database Storage StorSimple Stream Analytics Traffic Manager Virtual Machines Virtual Network Visual Studio Online Websites
  15. 15. SQL Database in the Cloud A relational database-as-a-service that makes tier-1 capabilities easily accessible ◦ Scalable to thousands of databases ◦ Predictable performance you can dial up or down ◦ Availability-backed by replicas & uptime SLA ◦ Data protection via auditing, restore & geo-replication ◦ Programmatic DBA-like functionality for efficient DevOps ◦ Self-managed for near-zero maintenance
  16. 16. Virtual Machines Launch Windows Server and Linux in minutes ◦ Scale from 1 to 1000s of VM Instances ◦ Built-in Virtual Networking, Load Balancing ◦ Leverage Hybrid Consistency with On-Premises ◦ Microsoft SQL Server and SharePoint Server ◦ Oracle, MySQL, Redis, MongoDB ◦ Save money with per-minute billing
  17. 17. HDInsight Our 100% Apache Hadoop-based service in the cloud ◦ Scale to petabytes on demand ◦ Process unstructured and semi-structured data ◦ Develop in Java, .NET, and more ◦ No hardware to buy or maintain ◦ Pay only for what you use ◦ Spin up a Hadoop cluster in minutes ◦ Visualize your Hadoop data in Excel ◦ Easily integrate on-premises Hadoop clusters
  18. 18. Machine Learning Powerful cloud-based predictive analytics ◦ Designed for new and experienced users ◦ Proven algorithms from MS Research, Xbox and Bing ◦ First class support for the open source language R ◦ Seamless connection to HDInsight for big data solutions ◦ Deploy models to production in minutes ◦ Pay only for what you use. No hardware or software to buy.
  19. 19. Express Route Experience a faster, private connection to Azure ◦ Private Connections to Azure ◦ Increased reliability and speed ◦ Lower latencies ◦ Higher security ◦ Significant cost benefits possible ◦ Directly connect from your WAN
  20. 20. Key Vault Safeguard cryptographic keys and other secrets used by cloud apps and services ◦ Increase security and control over keys and passwords ◦ Create and import encryption keys in minutes ◦ Applications have no direct access to keys ◦ Use FIPS 140-2 Level 2 certified HSMs ◦ Reduce latency with cloud scale and global redundancy
  21. 21. Traffic Manager Geo-route incoming traffic to your app for better performance and availability ◦ Improve app availability with automatic failover ◦ Increase your app’s responsiveness ◦ Enable smooth cloud migration ◦ Distribute your app traffic equally or with weighted values ◦ A/B test new deployments ◦ Seamlessly combine on-premises and cloud
  22. 22. Operational Insights Gain deeper insight into your environments ◦ Collect, search and visualize machine data ◦ Manage and forecast the capacity of your infrastructure ◦ Assess the safety and security of your servers ◦ Track server configuration changes ◦ Proactively avoid workload problems ◦ Ensure your servers are up to date
  23. 23. Visual Studio Online Ship better software with Visual Studio Online ◦ Free for up to five users ◦ Unlimited private source code repositories ◦ Use Visual Studio, Eclipse, or your own tools ◦ Track bugs, work items, feedback and more ◦ Monitor your apps and services ◦ Scales to any team size
  24. 24. Service Provisioning Model • Each account has zero or more servers ‒ Azure wide, provisioned in a common portal ‒ Billing instrument • Each server has one or more databases ‒ Contains metadata about the databases and usage ‒ Unit of authentication ‒ Unit of Geo-location ‒ Generated DNS based name • Each database has standard SQL objects ‒ Unit of consistency ‒ Unit of multi-tenancy ‒ Contains Users, Tables, Views, Indices, etc. ‒ Most granular unit of billing Account Server Database
  25. 25. Architecture • Shared infrastructure at SQL database and below ‒ Request routing, security and isolation • Scalable HA technology provides the glue ‒ Automatic replication and failover • Provisioning, metering and billing infrastructure Machine 5 SQL Instance SQL DB User DB1 User DB2 User DB3 User DB4 Scalability and Availability: Fabric, Failover, Replication, and Load balancing SDS Provisioning (databases, accounts, roles, …, Metering, and Billing Machine 6 SQL Instance SQL DB User DB1 User DB2 User DB3 User DB4 Machine 4 SQL Instance SQL DB User DB1 User DB2 User DB3 User DB4 Scalability and Availability: Fabric, Failover, Replication, and Load balancing
  26. 26. SQL Azure Deployment Web Portal (API) SQL Azure TDS DB Script
  27. 27. SQL Azure Accessing databases Web Portal (API) SQL Azure TDS Your App Change Connection String
  28. 28. Database Replicas Replica 1 Replica 2 Replica 3 DB Single Database Multiple Replicas
  29. 29. Hardware Boundary Hardware Boundary Hardware Boundary Hardware Boundary Shared Environment BC D A A B B C C D D A
  30. 30. SQL Azure Database Monitoring & Recovery Web Portal (API) SQL Azure TDS Your App !
  31. 31. SQL Azure few days ago We want to work with SQL Azure (oops SQL Database) Size does matter? ◦ Personal: 1GB, 5GB ◦ Business: 10GB, 20 GB, 30 GB, 40 GB, 50 GB, 100 GB, 150 GB (3x50) ◦ “Private”: less than 100 MB ($4.995 / month) Version does matter? ◦ 10.25 my first experience, but after July 2011 Service Release… ◦ 11.0.9214.51 now > close to SQL Server 2012 Row Versioning-Based Isolation Levels ◦ Both the READ_COMMITTED_SNAPSHOT and ALLOW_SNAPSHOT_ISOLATION database options are set to ON in Microsoft Azure SQL Database. ◦ Because SET <snapshot_option> in the ALTER DATABASE Transact-SQL statement is not supported, these database options cannot be changed. error msg 40544: The database has reached its size quota. Partition or delete data, drop indexes, or consult the documentation for possible resolutions.
  32. 32. SQL Azure now Size does matter? ◦ Personal: 1GB, 5GB ◦ Business: 10GB, 20 GB, 30 GB, 40 GB, 50 GB, 100 GB, 150 GB (3x50) ◦ “Private”: less than 100 MB ($4.995 / month) Size does matter! ◦ BASIC • size: 100MB, 500MB, 1GB, 2GB • performance: 5DTU ◦ STANDARD • size: 100MB, 500MB, 1GB, 2GB, 5GB, 10GB, 20GB, 30GB, 40GB, 50GB, 100GB, 150GB, 200GB, 250GB • performance: S0 10DTU, S1 20DTU, S2 50DTU ◦ PREMIUM • size: 100MB, 500MB, 1GB, 2GB, 5GB, 10GB, 20GB, 30GB, 40GB, 50GB, 100GB, 150GB, 200GB, 250GB, 500GB • performance: P10 100DTU, P2 200DTU, SP3 800DTU What is DTU DTUs provide a way to describe the relative capacity of a performance level of Basic, Standard, and Premium databases. DTUs are based on a blended measure of CPU, memory, reads, and writes.
  33. 33. PART ONE: SQL Azure and DTU Service Tier/Performance Level DTU MAX DB Size Max Concurrent Requests Max Concurrent Logins Max Sessions Benchmark Transaction Rate Predictability Basic 5 2 GB 30 30 300 16,600 transactions per hour Good Standard/S0 10 250 GB 60 60 600 521 transactions per minute Better Standard/S1 20 250 GB 90 90 900 934 transactions per minute Better Standard/S2 50 250 GB 120 120 1,200 2,570 transactions per minute Better Standard/S3 100 250 GB 200 200 2,400 5,100 transactions per minute Better Premium/P1 125 500 GB 200 200 2,400 105 transactions per second Best Premium/P2 250 500 GB 400 400 4,800 228 transactions per second Best Premium/P4 500 500 GB 800 800 9,600 447 transactions per second Best Premium/P6 (formerly P3) 1000 500 GB 1,600 1,600 19,200 735 transactions per second Best
  34. 34. SQL Azure Collation Collation does it matter? ◦ default database collation used by Microsoft Azure SQL Database is SQL_LATIN1_GENERAL_CP1_CI_AS, where LATIN1_GENERAL is English (United States), CP1 is code page 1252, CI is case-insensitive, and AS is accent-sensitive SQL_Latin1_General_CP1_CI_AS ◦ When using an on-premise SQL Server, you can set collations at server, database, column, and expression levels. ◦ Microsoft Azure SQL Database does not allow setting the collation at the server level. ◦ To use the non-default collation with Microsoft Azure SQL Database, set the collation with the Create Database Collate option, or at the column level or the expression level. ◦ SQL Database does not support the Collate option with the Alter Database command. ◦ By default, in SQL Database, temporary data will have the same collation as the database
  35. 35. users, migration, automation, Naming, Logins, Users ◦ Admin, administrator, guest, root, sa Data Migration Support ◦ You can use: • SQL Server 2008 Integration Services (SSIS) • The bulk copy utility (BCP.exe) • System.Data.SqlClient.SqlBulkCopy class • Scripts that use INSERT statements to load data into the database • SQL Data Compare from Red Gate ◦ You can't use: • The RESTORE statement. • Attaching a database to the SQL Database server. No SQL Server Agent (almost) No SQL Server jobs No SQL Server Browser
  36. 36. Indexes Indexes, of course indexes ◦ You MUST use CLUSTERED INDEX with your (Azure) SQL Database. ◦ Heap tables are not supportes, so You MUST create CLUSTERED INDEX before INSERT will be executed error msg 40054: Tables without a clustered index are not supported in this version of SQL Server. Create a clustered index and try again. CREATE TABLE Source (Id int NOT NULL IDENTITY, [Name] nvarchar(max), CONSTRAINT [PK_Source] PRIMARY KEY CLUSTERED ( [Id] ASC ))
  37. 37. SQL Database Closed connections to the service… by the service Because of multi-tenant : ◦ Excessive resource usage ◦ Connections that have been idle for 30 minutes or longer (Program assuming your connection is going to fail) ◦ Failover because of server failures errors: 40197, 40501, 40544, 40549, 40550, 40551, 40552, 40553, 40613
  38. 38. Sample of SQL Compability In Scope for v1 • Constants • Constraints • Cursors • Index management and rebuilding indexes • Local temporary tables • Reserved keywords • Stored procedures • Statistics management • Transactions • Triggers • Tables, joins, and table variables • Transact-SQL language elements such as • Create/drop databases • Create/alter/drop tables • Create/alter/drop users and logins • and so on. • User-defined functions • Views Out of Scope for v1 • Common Language Runtime (CLR) • Database file placement • Database mirroring • Distributed queries • Distributed transactions • Filegroup management • Global temporary tables • Spatial data and indexes • SQL Server configuration options • SQL Server Service Broker • System tables • Trace Flags • Physical server or catalog DDL and views
  39. 39. SQL Server 2005 {9.0} NON-Compability • Common Language Runtime (CLR) and CLR User-Defined Types • Database Mirroring • Service Broker • Table Partitioning • Typed XML and XML indexing is not supported. The XML data type is supported by SQL Azure.
  40. 40. SQL Server 2008 {10.0} NON-Compability • Change Data Capture • Data Auditing • Data Compression • Extended Events • External Key Management / Extensible Key Management • FILESTREAM Data • Integrated Full-Text Search • Large User-Defined Aggregates (UDAs) • Large User-Defined Types (UDTs) • Performance Data Collection (Data Collector) • Policy-Based Management • Resource Governor • SQL Server Replication • Transparent Data Encryption
  41. 41. SQL Server 2008R2 {10.50} NON-Compability • SQL Server Utility • SQL Server PowerShell Provider • Master Data Services SQL Server Management Studio does not support Windows Azure SQL Database in versions prior to SQL Server 2008 R2
  42. 42. Windows Azure DB {General} Compability • The compatibility level of V12 is 120, which was introduced with SQL 2014. • And while the boxed product supports 3 different compatibility levels • one current • and two previous ones, • Azure SQL Database currently supports 4: • 100, 110, 120 and 130. ALTER DATABASE DemoDB SET COMPATIBILITY_LEVEL = 110
  43. 43. Connection Model When writing applications for Windows Azure SQL Database, you can use the following drivers and libraries: • .NET Framework Data Provider for SQL Server (System.Data.SqlClient) from the .NET Framework 3.5 Service Pack 1 or later. • Entity Framework from the .NET Framework 3.5 Service Pack 1 or later. • SQL Server 2008 R2 Native Client ODBC driver. SQL Server 2008 Native Client ODBC driver is also supported, but has less functionality. • SQL Server 2008 Driver for PHP version 1.1 or later. • An updated version of SQL Server JDBC Driver 3.0 that supports SQL Database. • Windows Azure SQL Database supports tabular data stream (TDS) protocol client version 7.3 or later. Earlier versions of TDS protocol are not supported. • Connecting to Windows Azure SQL Database by using OLE DB or ADO is not supported • Support for ASP.NET controls • Clients connect directly to a database
  44. 44. Security Model Uses regular SQL security model ◦ Authenticate logins, map to users and roles ◦ Authorize users and roles to SQL objects Support for standard SQL Auth logins ◦ Username + password AD Federation, WLID – Windows Live ID, etc as alternate authentication protocols [admin, administrator, guest, root, sa] Security model is 100% compatible with on-premise SQL
  45. 45. Scenarios for V1 Departmental Applications ◦ Simple application built by individual or department ◦ Need simple deployment, self-management, IT: “Empowerment and Governance” Web Applications ◦ Small business or startup that uses the cloud as their IT ◦ Simple deployment, self-management, scale on demand ISV ◦ ISV hosting software on behalf of customer ◦ Multi-tenant support for billing and isolation Data Hub (Shortly After V1) ◦ Sharing and aggregating of data across tiers and across enterprises ◦ Centralized place for data, high scale, sync with existing data sources
  46. 46. Points of Difference Point of Difference On-premise SQL Server Windows Azure SQL Database Where you manage server-level security The Security folder in SQL Server Management Studio'sObject Explorer The master database Server-level security role for creating logins securityadmin fixed server role loginmanager database role in the master database Commands for managing logins CREATE LOGIN CREATE LOGIN ALTER LOGIN ALTER LOGIN DROP LOGIN DROP LOGIN (There are some parameter limitations and you must be connected to the master database) View that shows all logins sys.syslogins (sys.sql_logins for SQL Server authentication logins) sys.sql_logins (You must be connected to the master database) Server-level role for creating databases dbcreator fixed database role dbmanager database role in the master database Command for creating a database CREATE DATABASE CREATE DATABASE (There are some parameter limitations and you must be connected to the master database) Dropping databases DROP DATABASE DROP DATABASE If a user is in the dbmanager role, they have permission to DROP any database, regardless of which user originally created it. View that lists all databases sys.databases sys.databases (view) (You must be connected to the master database)
  47. 47. SQL Database Federations One or more tables within a database are split by row and portioned across multiple databases (federation members) /sharding/ A federation is a collection of database partitions that are: ◦ defined by a federation distribution scheme, known as the federation scheme. ◦ federation scheme defines a federation distribution key, ◦ (which determines the distribution of data to partitions within the federation) ◦ federation distribution key must be an INT, BIGINT, UNIQUEIDENTIFIER, or VARBINARY ◦ only one federation scheme and one federation distribution key for a federation.
  48. 48. PART ONE: Adventure with WASD Adventure… … of course Adventure Works 2012 for SQL Database Adventure Works for SQL Server 2012 ◦ Release date: March 2012 Adventure Works for SQL Azure ◦ Release date: April 2012
  49. 49. PART TWO: Demo Mode
  50. 50. PART TWO: azure in the web azure portal management portal management studio third party tools
  51. 51. Don’t Ask Me…
  52. 52. PART THREE: The Future of the DBA
  53. 53. PART THREE: Future of the DBA’s SQL Server on Premise ◦ same job (almost like always) ◦ same tasks, planning, architecture ◦ same problems ◦ same fun especially with new versions every… two years?
  54. 54. PART THREE: Future of the DBA’s New horizons, new skills ◦ SQL as a servis (SQL Azure Database) ◦ not very new but still new concepto of work ◦ some restriction (in minus) ◦ some improvements (such a security)
  55. 55. PART THREE: Future of the DBA’s Automation behind our business someone (in MS DC) making half of our job we can forget about few important features/tasks: ◦ tempdb ◦ mirroring ◦ auditing ◦ backup & restore what is our role?
  56. 56. APPENDIX: links & demos
  57. 57. 
  58. 58. Very Important Article Authors: Conor Cunningham, Tobias Ternström, Silvano Coriani, Ewan Fairweather Contributing Author: Ralph Squillace 
  59. 59. MSDN SQL Database District Windows Azure SQL Database (formerly SQL Azure) | What's New in Windows Azure SQL Database (formerly SQL Azure) ◦ Backward Compatibility in Windows Azure SQL Database ◦ Known Issues in Windows Azure SQL Database ◦ Introducing Windows Azure SQL Database ◦ Tutorials ◦ Feedback and Community Information ◦ Windows Azure Platform Management Portal ◦ Windows Azure SQL Database Concepts ◦ Administration ◦ Development ◦ Guidelines and Limitations ◦ Management REST API Reference ◦ Transact-SQL Reference ◦ Errors and Exceptions Reference 
  60. 60. APPENDIX: additional links • Red Gate Cloud Ready Services • • Windows Azure DataCenter Video • General Guidelines and Limitations (Windows Azure SQL Database) • • Adventure Works for SQL Database (formerly SQL Azure) • • Federations: Building Scalable, Elastic, and Multi-tenant Database Solutions • | • Error Messages (Windows Azure SQL Database) • • Compare SQL Server with Windows Azure SQL Database •
  61. 61. APPENDIX: additional links • Trust Center: Security, Privacy and Compliance Information for Office 365 and Microsoft Dynamics CRM Online • • Announcing PCI DSS compliance and expanded ISO certification for Windows Azure • • Windows Azure cloud services achieve critical federal security milestone • • INFOSYS – Microsoft Data Access Technologies SWOT • • One year in, and the use cases for Microsoft's SQL Azure are becoming clear •
  62. 62. APPENDIX: additional links • New Levels of Security via Machine Learning & Combined Data Sets • • Predict What's Next: Getting Started on Azure Machine Learning - Part 1 • • Predict What's Next: How to Get Started with Machine Learning Part 2 • • Introducing Elastic Scale preview for Azure SQL Database • • New D-Series Virtual Machine Sizes •
  63. 63. APPENDIX: additional links • Windows Azure IT Camp Resources–Slide Deck and Hands-on-Lab • hands-on-lab.aspx#sthash.yFgxwPLv.dpuf • Microsoft Azure Free one month trial • • Microsoft Virtual Academy • • Introducing Elastic Scale preview for Azure SQL Database • • Performance Best Practices for SQL Server in Azure Virtual Machines • us/library/azure/dn133149.aspx?WT.mc_id=Social_SQL_General_DI&WT.mc_id=Social_FB_OutgoingPromotion_ 20140922_90669619_Microsoft%20SQL%20Server%20-%20sqlserver&linkId=9703972
  64. 64. SQL Database Migration Wizard v3.11 & v4.11 & v5.11 SQL Database Migration Wizard (SQLAzureMW) is designed to help you migrate your SQL Server 2005/2008/2012/2014 databases to Azure SQL Database. • Requirements • SQLAzureMW v3x and tools requires .NET Framework 3.5 and SQL Server 2008 R2 SP1 • SQLAzureMW v4x and tools requires .NET Framework 4.5 and SQL Server 2012 • SQLAzureMW v5x and tools requires .NET Framework 4.5 and SQL Server 2014 • AzureMWBatchBackup: • This is used to create a backup of a database schema and data. The data is downloaded via BCP. The TSQL output from SQLAzureMWBatchBackup can be used by SQLAzureMW or SQLAzureMWBatchUpload. • SQLAzureMWBatchUpload: • Takes the output from SQLAzureMW or SQLAzureMWBatchBackup and runs it against the target Azure SQL Database (or SQL Server) server.
  65. 65. QUESTIONS? @sdn_watch @KoprowskiT
  66. 66. SQL Saturday #434 Holland {Utrecht} Pre-Conference Full-Day Seminars PASS Nederland | Vianen, Nederland | Friday 25 september 2015 van 09:00 tot 17:00 (CEST) • Tobiaz Koprowski - WASD-A Journey from Zero to be Hero - Level 200 • Dejan Sarka - Data Mining Algorithms in SQL Server, Excel, R and Azure ML - Level 300 • Hugo Kornelis - Understanding Execution Plans - Level 400 Free Full Day Conference PASS Nederland | Vianen, Nederland | Saturday 26 september 2015 van 09:00 tot 17:00 (CEST)
  67. 67. Durf jij ook? Schrijf voor ons magazine of spreek ook op een volgend SDN event!