public override void Delete(int recordId) { if (RecordValidation.IsValidRecordId(recordId)) { DataAccessProvider.ExecuteNonQuery($"DELETE Records WHERE RecordID = {recordId}"); } }
public override void Create(Record record) { if (RecordValidation.IsValidRecord(record)) { DataAccessProvider.ExecuteNonQuery($"INSERT INTO Records (Mark, StudentID, SubjectID) " + $"values ({record.Mark}, " + $"{record.StudentId}, " + $"{record.SubjectId})"); } }