Teil 3 meiner Antwort:
Tabelle "klaviaturen":
+----------------+-------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------------+-------------+------+-----+---------+----------------+
| Klaviatur_Nr | tinyint(3) | NO | PRI | NULL | auto_increment |
| Position | tinyint(1) | YES | | NULL | |
| Tiefste_Taste | varchar(2) | YES | | NULL | |
| Hoechste_Taste | varchar(2) | YES | | NULL | |
| Anzahl_Tasten | tinyint(2) | YES | | NULL | |
| Bauart | varchar(60) | YES | | NULL | |
+----------------+-------------+------+-----+---------+----------------+
mit den Einträgen:
+--------------+----------+---------------+----------------+---------------+---------------------------------------+
| Klaviatur_Nr | Position | Tiefste_Taste | Hoechste_Taste | Anzahl_Tasten | Bauart |
+--------------+----------+---------------+----------------+---------------+---------------------------------------+
| 1 | 0 | C | H | 12 | Stummel |
| 2 | 0 | C | c | 13 | Stummel |
| 3 | 0 | C | e | 17 | Stummel |
| 4 | 0 | C | f | 18 | Stummel |
| 5 | 0 | C | g | 20 | Stummel |
| 6 | 0 | C | c1 | 25 | Stummel |
| 7 | 0 | C | c1 | 25 | Voll, radial, horizontal geschweift |
| 8 | 0 | C | c1 | 25 | Voll. parallel |
| 9 | 0 | C | d1 | 27 | Voll, parallel |
| 10 | 0 | C | f1 | 30 | Voll, parallel |
| 11 | 0 | C | g1 | 32 | Voll, parallel, vertikal geschweift |
| 12 | 1 | c | c3 | 37 | vorspringend |
| 13 | 1 | F | f2 | 37 | vorspringend |
| 14 | 1 | F | a2 | 41 | vorspringend |
| 15 | 1 | F | c3 | 44 | vorspringend |
| 16 | 1 | C | g2 | 44 | vorspringend |
| 17 | 1 | F | e3 | 48 | vorspringend |
| 18 | 1 | C | c3 | 49 | vorspringend |
| 19 | 1 | C | g3 | 56 | vorspringend |
| 20 | 1 | C | h3 | 60 | Waterfall |
| 21 | 1 | C | c4 | 61 | vorspringend |
| 22 | 2 | c1 | c4 | 37 | vorspringend |
| 23 | 2 | f | f3 | 37 | vorspringend |
| 24 | 2 | F | a3 | 41 | vorspringend |
| 25 | 2 | f | c4 | 44 | vorspringend |
| 26 | 2 | c | g3 | 44 | vorspringend |
| 27 | 2 | c | c4 | 49 | vorspringend |
| 28 | 2 | F | f3 | 49 | vorspringend |
| 29 | 2 | C | g3 | 56 | vorspringend |
| 30 | 2 | C | h3 | 60 | vorspringend |
| 31 | 2 | C | c4 | 61 | vorspringend |
| 32 | 3 | F | c3 | 44 | vorspringend |
| 33 | 2 | c | f3 | 42 | vorspringend |
| 34 | 1 | C | c4 | 61 | Waterfall |
| 35 | 2 | C | c4 | 61 | Waterfall |
| 36 | 0 | C | g1 | 32 | Voll, parallel, horizontal geschweift |
| 37 | 0 | C | f1 | 30 | Voll, parallel, vertikal geschweift |
| 38 | 3 | c | c4 | 49 | vorspringend |
| 39 | 0 | C | f1 | 30 | Voll, parallel, doppelt geschweift |
| 40 | 1 | F1 | g4 | 75 | Waterfall |
| 41 | 3 | C | c4 | 61 | vorspringend |
| 42 | 0 | C | f1 | 30 | Stummel |
| 43 | 4 | C | c4 | 61 | vorspringend |
| 44 | 1 | C | c3 | 49 | Waterfall |
| 45 | 2 | c | c5 | 61 | vorspringend |
| 46 | 0 | C | f1 | 30 | Voll, parallel, horizontal geschweift |
| 47 | 1 | A | e3 | 44 | vorspringend |
| 48 | 0 | C | g1 | 32 | Voll, radial, vertikal geschweift |
| 49 | 1 | F | c3 | 44 | Waterfall |
| 50 | 2 | f | c4 | 44 | Waterfall |
| 51 | 3 | c1 | c4 | 37 | vorspringend |
| 52 | 3 | f | c4 | 44 | vorspringend |
| 53 | 1 | F | f3 | 49 | vorspringend |
| 54 | 1 | A | e3 | 44 | Waterfall |
| 55 | 0 | C | g1 | 32 | Voll, parallel |
| 56 | 1 | F | f2 | 37 | Waterfall |
| 57 | 2 | F | f2 | 37 | Waterfall |
| 58 | 0 | C | g1 | 32 | Voll, parallel, doppelt geschweift |
| 59 | 3 | f1 | c4 | 32 | vorspringend |
| 60 | 3 | F | c4 | 56 | vorspringend |
| 61 | 1 | C | e2 | 41 | vorspringend |
| 62 | 4 | C1 | h4 | 84 | Waterfall |
| 63 | 3 | c1 | c3 | 25 | vorspringend |
+--------------+----------+---------------+----------------+---------------+---------------------------------------+