command クラス : Scalar()メソッド

connection cnn = new connection("Data Source=c:\somedirectory\somedatabase.sqlite3;Version=3;");

cnn.Open();

// It makes sure of existence of the "sometable".

command cmm = new command("select count(*) from sqlite_master where type='table' and name='sometable';", cnn);

// If it exists, return 1 in string. Otherwise, return 0 in string.

string numStr = cmm.Scalar();

cmm.Release();

cnn.Close();

cnn.Release();