Agenda. Announcements SQL Azure: First Look Demo Limitations

Transcription

1 SQL Azure

2 Agenda Announcements SQL Azure: First Look Demo Limitations

3 Announcements Microsoft Shutting Down Northwest Data Center Reason given: changes in local tax laws Apps hosted there must move to Southwest Expect they are relocating the data center elsewhere Moving to an every-other-month meeting schedule (no October meeting) Topic for November: Rich Internet Applications (RIAs) November Meeting: 11/17

4 SQL Azure - Overview Database in the Cloud Very similar to SQL Server Database functionality only at present (no SSRS, SSAS, SSB) First preview CTP came out in late August First time most of us are seeing it is tonight Free to use between now and release Release is November 2009 PDC

5 SQL Azure - Database Only SQL Azure does not support all of the features and data types found in SQL Server. Analysis Services, Replication, Reporting Services, and Service Broker are not currently provided as services on the Azure Services Platform.

6 SQL Azure How to Sign Up Just visit Azure.com and follow the sign-up link Your invitation token will come in the mail

7 SQL Azure Manage from Azure.com

8 SQL Azure Manage from Azure.com

9 SQL Azure Server Administration Server Name Admin Show Connection String Data Center Databases Admin Password Reset Create New Database

10 Connection Strings It s intended that the main difference between SQL Server and SQL Azure is the connection string Connection String Format: Server=tcp:server.ctp.database.windows.net Database=database User ID=user Password=password TrustedConnection=False

11 Create Database

12 DEMO: SQLAZURE PORTAL

13 Can I use SQL Server Mgmt Studio? Yes, but it s a little rocky right now. You need to follow these steps precisely to get it working: 1. Cancel out of the first Connect dialog that pops up. 2. click on the New Query button from the toolbar 3. enter Server name: full servername Login: just the username and password 4. Under Options, Connect to Database, enter db name 5. Click Connect, ignore the error that is displayed.

14 Step 1: Cancel Connect Dialog Cancel Dialog

15 Steps 2-3: Click New Query, Enter Info Click New Query Server Name Admin user id and password

16 Step 4: Enter Database Name Enter Database Name

17 Step 5: Click Connect, Ignore Error

18 Create DB Locally

19 Script Table Creation

20 Create Table in SQL Azure

21 Create Table, Insert, Select in SQL Azure

22 DEMO: USING SQLSERVER MANAGEMENT STUDIO WITH SQL AZURE

23 SQL Azure Key Benefits Manageability Scale and functionality of an enterprise data center w/o the admin overhead Self-managing capability allows organizations to provision data services without adding to their support burden Reduce the initial costs of data services by provisioning only what you need. Provision your data storage in minutes. High Availability Built on Windows Server and SQL Server technologies, flexible enough to cope with any variations in usage and load. Replicates redundant copies of your data to multiple physical servers to maintain availability and business continuity. In the case of a hardware failure, SQL Azure provides automatic failover to optimize availability for your application. Scalability Scale your solution with ease. After partitioning your data, the service scales as your data grows. You only pay for the storage that you use. Scale down the service when you do not need it. Familiar Development Model and Relational Data Model Use the same tools and libraries to build solutions that you do for SQL Server. Data is stored in SQL Azure just like it is stored in SQL Server, by using Transact-SQL. Familiar database objects - multiple databases with tables, views, stored procedures, indices No Physical Considerations SQL Azure servers and databases are virtual objects that do not correspond to physical servers and databases. By insulating you from the physical implementation, SQL Azure enables you to spend time on your database design.

24 Administration Logical Administration DBA manages schema creation, statistics management, index tuning, query optimization, and security administration (logins, users, roles ) Physical Administration SQL Azure service automatically replicates all data to provide high availability SQL Azure service manages load balancing and, in case of a server failure, transparent fail-over.

25 Backup No backup and restore commands You can still use SQL Server Integration Services and the SQLCMD utility to bulk copy data.

26 Provisioning Model Each Azure account can have multiple SQL Azure servers Each SQL Azure server can be associated with one or more databases. A SQL Azure server is a logical group of databases and acts as a central administrative point for multiple databases. Each SQL Azure server includes logins similar to those in instances of SQL Server on your premises. Each SQL Azure server has a fully qualified unique domain name, which is produced during the SQL Azure provisioning process. servername.ctp.database.windows.net

27 Create a Database Interactively using the SQL Azure portal, or Programmatically with a CREATE DATABASE statement.

28 Managing Users and Logins Server-level login administration Server-level administration for logins and databases in SQL Azure differs from an on-premise instance of SQL Server. During provisioning, SQL Azure creates a server-level principal login equivalent to the salogin in SQL Server Additional SQL Azure databases and logins can then be created via T-SQL SQL Azure provides the same security principals as SQL Server, such as: SQL Server logins: Authenticate access to SQL Azure at the server level. Database users: Grant access to SQL Azure at the database level. Database roles: Group users + grant access to SQL Azure at the database level. Database-level login administration Database-level administration for users and roles in SQL Azure is the same as for an on-premise instance of SQL Server.

29 T-SQL Support Supported Fully or Partially 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 User-defined functions Views Not Available 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

30 Programming Model Use one of two programming models when using SQL Azure, depending on the size of your database application. For smaller data sets, use a single database, similar to how you use an on-premise instance of SQL Server. For larger data sets, we recommend that you partition your data across multiple databases and write parallel "fan-out" queries to fetch the data. Doing this optimizes the performance and availability of SQL Azure.

31 DEMO: MIGRATING A SQL SERVER DATABASE AND ASP.NET WEB APPLICATION TO USE SQL AZURE

32 Limitations Authentication SQL Azure supports only SQL Server Authentication. Schema Design SQL Azure does not support heap tables. A table must have a clustered index. If a table is created without a clustered constraint, a clustered index must be created before an insert operation is allowed on the table.

33 Limitations Logins and Users The initial server-level principal login created during server provisioning is equivalent to the sa login in an instance of SQL Server. For a server login, the master is the default database, and US-English the default language. Must be connected to master database when executing the CREATE/ALTER/DROP LOGIN and CREATE/DROP DATABASE. When executing the CREATE/ALTER/DROP LOGIN and CREATE/DROP DATABASE statements in an ADO.NET application, using parameterized commands is not allowed. Each of these statements must be the only statement in a SQL batch. When executing the CREATE USER statement with the FOR/FROM LOGIN option, it must be the only statement in a SQL batch. ALTER USER statement with the WITH LOGIN option must be only statement in a SQL batch Only the server-level login and the members of the sds_dbcreatorrole have permission to execute the CREATE DATABASE and DROP DATABASE statements. Only the server-level login and the members of the sds_securityadminrole have permission to execute the CREATE LOGIN, ALTER LOGIN, and DROP LOGIN statements. Access to master database requires the login to be mapped to a user account in master database.

34 Limitations Connection Limitations In order to provide a good experience to all SQL Azure customers, your connection to the service may be closed due to the following conditions: Excessive resource usage Long-running queries Long-running single transactions, between the BEGIN TRAN and END TRAN statements Idle connections Idle connections and long running queries or transactions are closed after five minutes Break up large transactions into smaller ones. Incorporate retry logic in code to accommodate for these situations

35 Overview of Transact-SQL Supported or partially supported 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

36 Overview of Transact-SQL Not Supported Common Language Runtime 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

37 SQL Azure Resources Documentation Sign up for SQL Azure SQL Azure Developer Center Azure User Group

38 SQL Azure Resources (cont d) Sql Azure Manager Sql Azure Migration Wizard