Association or Inheritance?

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C#2.0

C#

I have some SQLite Databases and i have 3 classes for the main handling.

1. A base SQLiteDatabase Class for the Connection

public class SQLiteDatabase
{
    public SQLiteDatabase(string databasePath);

    public void OpenConnection();
    public void CloseConnection();
    protected DataReader ExecuteReader(string sql);
    protected void ExecuteNonQuery(string sql);
}

2. A Class for handling the Tables like create a table.

public class SQLiteDatabaseTableHandler: SQLiteDatabase
{
    public SQLiteDatabaseTableHandler(string databasePath)
        : base(databasePath)
    {
    }
    public void CreateTable(IDatabaseTable table) { }
    public void UpdateTableCompatibility(IDatabaseTable table) { }
}

3. My application specified Database class for getting some stuff from the own Database.

public class ConcreteSQLiteDatabase : SQLiteDatabase
{
    public ConcreteSQLiteDatabase(string databasePath)
        : base(databasePath)
    {
    }
    public SQLiteDataReader GetSpecifiedStuff(string id)
    {
        ExecuteReader("SELECT * FROM specified_table");
    }
    public SQLiteDataReader GetOtherSpecifiedStuff(string id)
    {
        ExecuteReader("SELECT * FROM other_specified_table");
    }
    // ...
}

In my ConcreteSQLiteDatabase class i need methods from the SQLiteDatabaseTableHandler. There are 2 ways to make it possible:

1. Inheritance

I can use a Inheritance in my ConcreteSQLiteDatabase from the SQLiteDatabaseTableHandler instead of SQLiteDatabase.

Like this

public class ConcreteSQLiteDatabase : SQLiteDatabaseTableHandler

instead of

public class ConcreteSQLiteDatabase : SQLiteDatabase

2. Association

My ConcreteSQLiteDatabase class could have a instance of a SQLiteDatabaseTableHandler, so i can use the methods from the instance.

Like this

public class ConcreteSQLiteDatabase : SQLiteDatabase
{
    public SQLiteDatabaseTableHandler TableHandler{get;set;}
    public ConcreteSQLiteDatabase(string databasePath)
        : base(databasePath)
    {
        TableHandler = new SQLiteDatabaseTableHandler( databasePath );
    }
}

I don't know which way should i use in this case, Association or Inheritance?

Sorry for my bad english...