SQLite.Net使用入门(一)

逆境是成长必经的过程，能勇于接受逆境的人，生命就会日渐的茁壮。

Program.cs主程序:

class Program
{
// 与数据库的连接
SQLiteConnection m_dbConnection;

static void Main(string[] args)
{
Program p = new Program();
}

public Program()
{
createNewDatabase();
connectToDatabase();
createTable();
fillTable();
printHighscores();
}

// 创建一个空数据库文件
void createNewDatabase()
{
SQLiteConnection.CreateFile("MyDatabase.sqlite");
}

// 创建与我们的数据库文件的连接
void connectToDatabase()
{
m_dbConnection = new SQLiteConnection("Data Source=MyDatabase.sqlite;Version=3;");
m_dbConnection.Open();
}

//创建一个两列的名为“highscores” 表：name（最多20个字符的字符串） score（一个int）
void createTable()
{
string sql = "create table highscores (name varchar(20), score int)";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
}

//插入一些值到highscores表中
void fillTable()
{
string sql = "insert into highscores (name, score) values ('Me', 3000)";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
sql = "insert into highscores (name, score) values ('Myself', 6000)";
command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
sql = "insert into highscores (name, score) values ('And I', 9001)";
command = new SQLiteCommand(sql, m_dbConnection);
command.ExecuteNonQuery();
}

//按降序排序 高分
void printHighscores()
{
string sql = "select * from highscores order by score desc";
SQLiteCommand command = new SQLiteCommand(sql, m_dbConnection);
SQLiteDataReader reader = command.ExecuteReader();
while (reader.Read())
Console.WriteLine("Name: " + reader["name"] + "\tScore: " + reader["score"]);
Console.ReadLine();
}
}

运行结果如图: