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* SQL Lite Data Provider
<ul>
<li>ADO.NET Data Provider for
the <a href"http://www.hwaci.com/sw/sqlite/">SQL Lite</a> which
is an embeddable SQL database engine</li>
<li>From the SQL Lite web page: SQLite is a C library that
implements an embeddable SQL database engine. Programs that link with
the SQLite library can have SQL database access without
running a separate RDBMS process. The distribution
comes with a standalone command-line access program (sqlite) that
can be used to administer an SQLite database and which serves
as an example of how to use the SQLite library. SQLite is not a client library
used to connect to a big database server. SQLite is the server. The SQLite
library reads and writes directly to and from the database files on disk.</li>
<li>SQL Lite can be downloaded
from <a href="http://www.hwaci.com/sw/sqlite/download.html">here</a>.
binaries exist for Linux and Windows. sqlite.dll on Windows
and sqlite.so on Linux. The source code is available too.</li>
<li>Exists in namespace and assembly Mono.Data.SqliteClient</li>
<li>Created by Vladimir Vukicevic so he could have a database of
thumbnail images for mPhoto. mPhoto is GUI application
for cataloging images. mPhoto runs on Mono
and uses <a href="http://www.go-mono.com/gtk-sharp.html">GTK#</a> for its GUI.</li>
<li>Bugs with Mono or the data provider should be reported
in Mono's Bugzilla <a href="http://bugzilla.ximian.com/">here</a>. If you
do not have Bugzilla user account, it is free
and easy to
create one <a href="http://bugzilla.ximian.com/createaccount.cgi">here</a>.</li>
</ul>
** Current Status
<ul>
<li>Able to connect, execute commands, and retrieve data...</li>
<li>Works in mPhoto by providing access to a SQL Lite database to store images.</li>
</ul>
** Action Plan
<ul>
<li>Create a DataAdapter for SQL Lite named SqliteDataAdapter that can be used to
Fill a DataTable in a DataSet</li>
<li>Get the method GetSchemaTable() in class SqliteDataReader to return a DataTable
that works</li>
</ul>
** Testing
<ul>
<li>Have a working mcs and mono</li>
<li>Make sure Mono.Data.SqliteClient.dll was built and is installed
in the same place as the mono class libraries.</li>
<li>If you do not have <a href"http://www.hwaci.com/sw/sqlite/download.html">SQL Lite</a>,
download it. There are binaries for Windows and Linux.</li>
<li>There is a test named SqliteTest.cs found at mcs/class/Mono.Data.SqliteTest/Test</li>
<li>Has a connection string format of "URI=file:some/path". For example,
the connection string "URI=file:SqliteTest.db" will use the database file
named SqliteTest.db, if it does not exist, the file will be created.</li>
<li>C# Example:
<pre>
using System;
using System.Data;
using Mono.Data.SqliteClient;
public class Test
{
public static void Main(string[] args)
{
string connectionString = "URI=file:SqliteTest.db";
IDbConnection dbcon;
dbcon = new SqliteConnection(connectionString);
dbcon.Open();
IDbCommand dbcmd = dbcon.CreateCommand();
// requires a table to be created named employee
// with columns firstname and lastname
// such as,
// CREATE TABLE employee (
// firstname varchar(32),
// lastname varchar(32));
string sql =
"SELECT firstname, lastname " +
"FROM employee";
dbcmd.CommandText = sql;
IDataReader reader = dbcmd.ExecuteReader();
while(reader.Read()) {
string FirstName = (string) reader[0];
string LastName = (string) reader[1];
Console.WriteLine("Name: " +
FirstName + " " + LastName);
}
// clean up
reader.Close();
reader = null;
dbcmd.Dispose();
dbcmd = null;
dbcon.Close();
dbcon = null;
}
}
</pre>
</li>
<li>Building C# Example:
<ul>
<li>Save the example to a file, such as, TestExample.cs</li>
<li>Build on Linux:
<pre>
mcs TestExample.cs -r System.Data.dll \
-r Mono.Data.SqliteClient.dll
</pre>
</li>
<li>Build on Windows via Cygwin:
<pre>
mono C:/cygwin/home/MyHome/mono/install/bin/mcs.exe \
TestExample.cs \
-lib:C:/cygwin/home/MyHome/mono/install/lib \
-r System.Data.dll \
-r Mono.Data.SqliteClient.dll
</pre>
</li>
</ul>
</li>
<li>Running the Example:
<pre>
mono TestExample.exe
</pre>
</li>
</ul>
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