[RESOLVED] Need help with updating SQLite database

[nikel]

Hello, I want to insert cell value to my database. Here's my code:

private void UpdateMD5Record(string fn, string md5)
{
    m_dbConnection.Open();
 
    SQLiteCommand command = new SQLiteCommand("PRAGMA foreign_keys = ON", m_dbConnection);
    command.ExecuteNonQuery();
 
    string sql = @"UPDATE 'tbl_programs' " +
            @"SET('txt_md5' = :md5) " +
            @"WHERE ('txt_programName' = :pn" +
        @"); ";
    command = new SQLiteCommand(sql, m_dbConnection);
    command.Parameters.AddWithValue("md5", md5);
    command.Parameters.AddWithValue("pn", fn);
    command.ExecuteNonQuery();
    m_dbConnection.Close();
}

However I'm getting this error:

An unhandled exception of type 'System.Data.SQLite.SQLiteException' occurred in System.Data.SQLite.dll

Additional information: SQL logic error or missing database

near "=": syntax error

Can anyone help me?