从SQLite官网下载获取System.Data.SQLite库并安装。新建C# Console Application项目并添加对System.Data.SQLite.dll的引用。
然后 添加/现有项/SQLite.Interop.dll 添加为链接
将SQLite.Interop.dll 属性/复制到输出目录 改为“如果较新则复制”
在项目目录新建数据库Content.db3，并运行以下SQL在main库中创建files表：
CREATE TABLE files(
name text primary key not null,
data blob not null
);
将以下代码加入C#项目即可顺利跑起Demo：
class Program
{
private static readonly System.Data.SQLite.SQLiteCommand commandCount;
private static readonly System.Data.SQLite.SQLiteCommand commandInsert;
static Program()
{
commandCount = new System.Data.SQLite.SQLiteCommand();
commandCount.CommandText = "select count(*) from main.files";
commandInsert = new System.Data.SQLite.SQLiteCommand();
commandInsert.CommandText = "replace into main.files values(@name, @data)";
}
static void Test()
{
using (var conn = new System.Data.SQLite.SQLiteConnection(
"DbLinqProvider=Sqlite;Data Source=../../Content.db3"))
{
conn.Open();
commandCount.Connection = conn;
commandInsert.Connection = conn;
using (var reader = commandCount.ExecuteReader())
{
while (reader.Read())
{
Console.WriteLine(reader.GetValue(0));
}
}
commandInsert.Parameters.Add(new System.Data.SQLite.SQLiteParameter(
"name", "2"));
commandInsert.Parameters.Add(new System.Data.SQLite.SQLiteParameter(
"data", new byte[] { 0x00, 0x01, 0x02 }));
int n = commandInsert.ExecuteNonQuery();
Console.WriteLine(n);
using (var reader = commandCount.ExecuteReader())
{
while (reader.Read())
{
Console.WriteLine(reader.GetValue(0));
}
}
}
}
static void Main(string[] args)
{
Stopwatch watch = new Stopwatch();
watch.Start();
Test();
watch.Stop();
Console.WriteLine(watch.Elapsed);
}
}
SQLite官方提供的System.Data.SQLite库是典型的ADO.net接口访问方式，能和.net框架很好的配合起来，简单有效。
[注：本文对应的System.Data.SQLite版本为1.0.73.0 (3.7.6.3)]
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