“Datei in DB speichern” Code-Antworten

Datei in DB speichern

public static void databaseFilePut(string varFilePath) {
        byte[] file;
        using (var stream = new FileStream(varFilePath, FileMode.Open, FileAccess.Read)) {
            using (var reader = new BinaryReader(stream)) {
                file = reader.ReadBytes((int) stream.Length);

            }

        }
        using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
        using (var sqlWrite = new SqlCommand("INSERT INTO Raporty (RaportPlik) Values(@File)", varConnection)) {
            sqlWrite.Parameters.Add("@File", SqlDbType.VarBinary, file.Length).Value = file;
            sqlWrite.ExecuteNonQuery();
        }
    }
    public static void databaseFileRead(string varID, string varPathToNewLocation) {
        using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
        using (var sqlQuery = new SqlCommand(@"SELECT [RaportPlik] FROM [dbo].[Raporty] WHERE [RaportID] = @varID", varConnection)) {
            sqlQuery.Parameters.AddWithValue("@varID", varID);
            using (var sqlQueryResult = sqlQuery.ExecuteReader())
                if (sqlQueryResult != null) {
                    sqlQueryResult.Read();
                    var blob = new Byte[(sqlQueryResult.GetBytes(0, 0, null, 0, int.MaxValue))];
                    sqlQueryResult.GetBytes(0, 0, blob, 0, blob.Length);
                    using (var fs = new FileStream(varPathToNewLocation, FileMode.Create, FileAccess.Write)) fs.Write(blob, 0, blob.Length);
                }
        }
    }
    public static MemoryStream databaseFileRead(string varID) {
        MemoryStream memoryStream = new MemoryStream();
        using (var varConnection = Locale.sqlConnectOneTime(Locale.sqlDataConnectionDetails))
        using (var sqlQuery = new SqlCommand(@"SELECT [RaportPlik] FROM [dbo].[Raporty] WHERE [RaportID] = @varID", varConnection)) {
            sqlQuery.Parameters.AddWithValue("@varID", varID);
            using (var sqlQueryResult = sqlQuery.ExecuteReader())
                if (sqlQueryResult != null) {
                    sqlQueryResult.Read();
                    var blob = new Byte[(sqlQueryResult.GetBytes(0, 0, null, 0, int.MaxValue))];
                    sqlQueryResult.GetBytes(0, 0, blob, 0, blob.Length);
                    //using (var fs = new MemoryStream(memoryStream, FileMode.Create, FileAccess.Write)) {
                    memoryStream.Write(blob, 0, blob.Length);
                    //}
                }
        }
        return memoryStream;
    }