1. Data Persistence In A Web Hosted World

2. Jeff Ammons The Atlanta Journal-Constitution GGMUG.com
Developer/DBA
GGMUG.com
President
Gwinnett, Georgia, Microsoft User Group
2nd Thursday, 6:30 PM Gwinnett Tech
Blog:

3. Agenda Define Hosted Environment Explore Data Persistence Options
DBA Tasks With Hosted SQL Server
Data Access With LINQ and Entity Framework

4. What Is Hosted Environment?
Web
Shared Server
Managed By Hosting Company

5. What’s Included?
Web Server
File Storage
Database
Bandwidth

6. Examples
GoDaddy
Hostgator
DiscountASP.net
Bizhostnet.com

7. Who Is This Environment For?
Start-ups
Non-profit organizations
Personal use

8. Why Choose A Hosted Env? Lost cost ($5-$20/month) Quick Start
Fewer People Required
No hardware to buy
No hardware to maintain
No server room

9. Challenges Server Access Server Options Server Load
Dude, Where’s My Data?
Dude, Who Can See My Data?

10. Microsoft vs FOSS: The FOSS Advantage
Lots of FOSS based sites (LAMP)
Lots of FOSS sample code
Zero start-up cost
MS stack seen as ugly and corporate-looking

11. Microsoft vs FOSS: The Empire Strikes Back
Asp.Net MVC
JQuery supported OFFICIALLY
Visual Studio Express Edition
BizSpark
WebsiteSpark
You CAN achieve zero start-up cost
You CAN make good looking sites

12. Asp.Net Options
SharePoint
WebForms
MVC
ASP.NET

13. Data Persistence Options
MySQL
SQL Server
File Based
XML
JSON

14. Why Not MySQL? .Net naturally works better with SQL Server
LINQ To SQL works ONLY with SQL Server
Entity Framework support for MySQL is dodgy
This is NOT MySQL Saturday…

15. SQL Server $15/month = Unlimited 200 MB DBs
Good basic set of functionality
Choice of access methods
LINQ To SQL
Entity Framework
ADO
Etc.

16. SQL Server and MySQL

17. What’s Missing? Missing In Action Alternative Agent Wish You Had Agent
SSIS
SSRS
SSAS
Wish You Had Agent
Stored Procs
ASP App Perhaps With Silverlight, why not?
None

18. Types Of Access Direct Access Web Admin SQL Server Management Studio
Expose YOUR database directly to the Internet
Web Admin
Primitive tools
CYDB

19. Typical DBA Tasks Set Up Backups/Restores Imports/Exports Schemas
Tables
Indexes
Views
Stored Procedures
Backups/Restores
Imports/Exports

20. Demo Time

21. Developer/DBA
Developers vs DBAs
Objects vs Relational Data
ORM

22. What Is LINQ? Language INtegrated Query
SQL-like language construct for .Net
Joins
Tables
Objects
Both
Aggregation
Selection

23. Example LINQ Query
var orderedModuleList = from module in itemList.getList() orderby module.Name select module;

24. LINQ To Lots Of Stuff LINQ To Entities LINQ To SQL LINQ To Objects
LINQ To XML

25. File System Options
POCO (Built-in .Net Serialization)
XML

26. Why? Why? Why? Not ALL apps need relational databases SMALL datasets
Burn the heretic!!!
SMALL datasets
Lots of Readers/Few Publishers
Blog
Informational site
Personal site
Excessive DB Traffic

27. Example Custom ASP.Net Membership Provider Basic log-on info
Works great with 10-30,000 users
Total DOG with 500,000 users
No calls to DB server
Most start-ups would KILL to get 10,000 users

28. Demo Time

29. Goals For Your Project
Website itself
Web app others can use

30. Strategy 1: SQL Server
Your hosting plan gives you all the DBs you need
Latency of calling DB server is acceptable
Don’t kill yourself by calling DB too much
Cache, Cache, Cache

31. Strategy 2: File System Now, SQL Server Later
Repository Pattern
LINQ lets you query object collections
Switch to SQL Server if you grow
Not as big a deal as it once was
SQL Server now pretty cheap

32. Helpful Links MSDN: Dynamic Management Views and Functions
SQLServerCentral
SQLBlog

33. Helpful Queries
SELECT SERVERPROPERTY('productversion'), SERVERPROPERTY ('productlevel'), SERVERPROPERTY ('edition')
select top 100 * from sys.dm_tran_locks
select login_name, count(1) from sys.dm_exec_sessions group by login_name order by count(1) desc
SELECT creation_time ,cursor_id ,name ,c.session_id ,login_name FROM sys.dm_exec_cursors(0) AS c JOIN sys.dm_exec_sessions AS s ON c.session_id = s.session_id WHERE DATEDIFF(mi, c.creation_time, GETDATE()) > 5;