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ste182
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 [help] algebra relazionale!

Ciao ragazzi, non capisco alcune cose dell'algebra relazionale...
ad esempio se io ho queste due tabelle:

| codice| nomeP |
---------------------------------
| k1 | gms |
| k2 | openOffice |


| nomeP |
---------------------------
| openOffice |


il join naturale tra queste 2 tabelle cosa crea???

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13-01-2009 17:00
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Counter65
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| k2 | openOffice |

è l'unica relazione
13-01-2009 18:05
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Gimmy
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penso che il risultato sia

| codice| nomeP |
---------------------------------
| k2 | openOffice |

correggetemi se sbaglio...
13-01-2009 18:07
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ste182
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si è esatto... mi è stato confermato anche da altri :D

grazie ragazzi

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13-01-2009 18:14
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