I noticed that many people play the Sicilian Dragon Variation. So here is the complete Dragon database:

[ECO "B70"]
[Opening "Sicilian"]
[Variation "Dragon variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6

[ECO "B71"]
[Opening "Sicilian"]
[Variation "Dragon, Levenfish variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4

[ECO "B71"]
[Opening "Sicilian"]
[Variation "Dragon, Levenfish; Flohr variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7

[ECO "B72"]
[Opening "Sicilian"]
[Variation "Dragon, 6.Be3"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3

[ECO "B72"]
[Opening "Sicilian"]
[Variation "Dragon, Classical attack"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2

[ECO "B72"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Amsterdam variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. Qd2

[ECO "B72"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Grigoriev variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. Qd2 O-O 9. O-O-O

[ECO "B72"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Nottingham variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. Nb3

[ECO "B73"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, 8.O-O"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O

[ECO "B73"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Zollner gambit"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. f4 Qb6 10. e5

[ECO "B73"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Richter variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Qd2

[ECO "B74"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, 9.Nb3"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Nb3

[ECO "B74"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Stockholm attack"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Nxa5 Bxe2 13. Qxe2 Qxa5 14.
g4

[ECO "B74"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Spielmann variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3

[ECO "B74"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Bernard defence"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Nb3 Be6 10. f4 Na5 11. f5 Bc4 12. Bd3 Bxd3 13. cxd3 d5

[ECO "B74"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Reti-Tartakower variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Nb3 Be6 10. f4 Qc8

[ECO "B74"]
[Opening "Sicilian"]
[Variation "Dragon, Classical, Alekhine variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
8. O-O O-O 9. Nb3 a5

[ECO "B75"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3

[ECO "B76"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, 7...O-O"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O

[ECO "B76"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, Rauser variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. O-O-O

[ECO "B77"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, 9.Bc4"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. Bc4

[ECO "B77"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, Byrne variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. Bc4 a5

[ECO "B77"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, 9...Bd7"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. Bc4 Bd7

[ECO "B78"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, 10.O-O-O"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. Bc4 Bd7 10. O-O-O

[ECO "B79"]
[Opening "Sicilian"]
[Variation "Dragon, Yugoslav attack, 12.h4"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8.
Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Qa5 11. Bb3 Rfc8 12. h4

Thanks for the opening PGN's :)

This might be better called an opening index. A database normally includes complete games. A complete database of dragon games would be very large indeed.

Who's naming conventions did you use?