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SQLite and the .NET Framework. This PPT: Http://www.eggheadcafe.com/articles/SQLite.ppt. What is SQLite?. SQLite is a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine.

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sqlite and the net framework

SQLite and the .NET Framework

This PPT: Http://www.eggheadcafe.com/articles/SQLite.ppt

what is sqlite
What is SQLite?
  • SQLite is a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine.
    • Transactions are atomic, consistent, isolated, and durable (ACID) even after system crashes and power failures.
    • Zero-configuration - no setup or administration needed.
    • Implements most of SQL92.
    • A complete database is stored in a single disk file.
    • Database files can be freely shared between machines with different byte orders.
    • Supports databases up to 2 terabytes (241 bytes) in size.
    • Sizes of strings and BLOBs limited only by available memory.
what is sqlite continued
What is SQLite – continued
  • Faster than popular client/server database engines for most common operations.
  • Simple, easy to use API.
  • Bindings for many languages available
  • Well-commented source code with over 95% test coverage.
  • Self-contained: no external dependencies.
  • Sources are in the public domain. Use for any purpose.
  • There is now a robust SQLite.NET ADO.NET provider!
  • Small code footprint: less than 30K lines of C code, less than 250KB code space
  • Installation: Just set “Build Action” to “Content” on Database file!
more sqlite features
More SQLite Features
  • Create Database Programmatically in Connection string
    • No need to distribute or install database
    • SQL to create database, tables, triggers can be embedded
  • Triggers
    • Triggers can be used to handle many of the functions of stored procedures.
  • Vacuum
    • Just like “Compact Database” in MS Access.
the sqlite ado net provider
The SQLite ADO.NET Provider
  • Conforms to normal ADO.NET Best practices
  • Offers:
    • SQLiteConnection
    • SQLiteCommand - all Methods except “Xml”
    • SQLiteDataAdapter
    • SQLiteCommandBuilder
    • Supports NTFS compression of Database File
sqlite 3 0 odbc driver
SQLite 3.0 ODBC Driver
  • Http://www.ch-werner.de/sqliteodbc/html/
  • This is an experimental open source ODBC driver for the wonderful SQLite 2.8.* and SQLite 3.* (alpha) Database Engine/Library. So far it is more a proof of concept and might contain lots of memory leaks and all other kinds of bugs. Thus I highly appreciate feedback.
  • WIN32 binaries (the ODBC driver DLL, install/uninstall programs) are in http://www.ch-werner.de/sqliteodbc/sqliteodbc-win32.zip
  • It works! It is SLOOOOW!
sqlite in action a first look
SQLite in Action: A First Look

private void CreateDatabase()

{

SQLiteConnection Conn = new SQLiteConnection();

string strPath=Server.MapPath("blog.db");

Conn.ConnectionString = "Data Source="+strPath+"; Compress=False;Synchronous=Off;New=True;Version=3";

Conn.Open();

SQLiteCommand Cmd = new SQLiteCommand();

Cmd = Conn.CreateCommand();

Cmd.CommandText="CREATE TABLE BlogItems (Blogid integer primary key , title varchar(250), link varchar(300), [description] varchar(8000), pubDate datetime, guid varchar(128), [public] integer )";

Cmd.ExecuteNonQuery(); . . . .

important scenarios
Important Scenarios
  • Mobile Code
    • Device-hosted applications
    • Database runs 100% on Device
    • “Zero configuration” installation
    • NO Client License Fees
  • Server / Desktop Code
    • Alternative to MSDE, MSAccess, MySql
    • No installation Required
    • Fast database engine
    • MultiThreaded
mobile code scenario
Mobile Code Scenario
  • Advantages of mobile code database
    • Executes locally for performance and rich features
    • Can use a WebService to receive “GetChanges” DataSets to update database on server
    • No dependency on “what kind” of database is used on the server.
    • No complicated Server configuration
    • No Client license fees to use SQLite
urls articles and sample code
URLS - Articles and Sample Code!
  • ASP.NET CacheDependency:http://www.eggheadcafe.com/articles/20040916.asp
  • SQLite DB and SQLiteBlog:
  • http://www.eggheadcafe.com/articles/20040714.asp
  • .Net Forum Control with SQLite: http://www.eggheadcafe.com/articles/20041009.asp
  • SQLite Compact Framework: http://www.eggheadcafe.com/articles/sqlitecf3.zip
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