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INFORMATICA MEDICA

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Subquery e IN (1)<br />

• Con la clausola IN si può controllare in un<br />

insieme, quindi possiamo usare subquery che<br />

restituiscono un vettore (colonna) di dati<br />

• SELECT * FROM Impiegato<br />

• WHERE Impiegato.matricola IN<br />

• (SELECT DISTINCT Familiare.matricola<br />

FROM Familiare Where eta

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