How to map to a Dictionary object from database results using Dapper Dot Net?

Question

If I have a simple query such as:

string sql = \"SELECT UniqueString, ID  FROM Table\";

and I want to map it to a dictionary object such as

Answer 1

For the table of which you do not know the structure at runtime

    using var db = new SqlConnection(_connectionString);
    var sql = $"Select * From {tableName} Order By {primaryKey}";

    var result = await db.QueryAsync(sql); 
    return result
        .Cast>()
        .Select(it => it.ToDictionary(it => it.Key, it => it.Value));