vs2015怎么添加数据库

1 先去服务检查下你的sqlserver是否已启动

2 如服务正常启动，打开sqlserver管理器，看看里面的实例数据库是否能正常访问

3 如上述都正常，检查下你vs2015连接时是否选对正确的实例数据库名

找到C#下SQLite *** 作驱动dll并下载：System.Data.SQLite

在项目中添加dll的引用

创建数据库（文件）：

SQLiteConnection.CreateFile("MyDatabase.sqlite")

连接数据库：

SQLiteConnection m_dbConnection=new SQLiteConnection("Data Source=MyDatabase.sqliteVersion=3")

         

m_dbConnection.Open()

插入数据：

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()

查询：

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()

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