Faq/Base/121/it
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Come posso calcolare un'età dalla data di nascita?
- Dato un campo contenente date di nascita, calcolare l'età corrente.
La query sarà:
SELECT "DateNaissance",
CASE WHEN MONTH(CURRENT_DATE) < MONTH("DateNaissance") OR ( MONTH(CURRENT_DATE) = MONTH("DateNaissance") AND DAY(CURRENT_DATE) < DAY("DateNaissance") )
THEN CAST((YEAR(CURRENT_DATE) - YEAR("DateNaissance") -1) AS VARCHAR) || ' ans'
ELSE CAST((YEAR(CURRENT_DATE) - YEAR("DateNaissance") ) AS VARCHAR) || ' ans'END AS "Age"FROM "Table1"
Per calcolare l'età al giorno più vicino:
La query assomiglierà a questa:
SELECT "DateNaissance", "Nom", YEAR(NOW())-YEAR("DateNaissance")-
CASE WHEN (MONTH( NOW() ) < MONTH("DateNaissance") OR ( MONTH( NOW() ) = MONTH("DateNaissance") AND
DAY( NOW() ) < DAY ("DateNaissance"))) THEN 1 ELSE 0 END AS "ans",
MONTH(NOW())-MONTH("DateNaissance") +
CASE WHEN MONTH(now()) <= MONTH("DateNaissance") AND DAY(NOW()) < DAY("DateNaissance")
THEN 11 ELSE
CASE
WHEN MONTH(NOW()) < MONTH("DateNaissance") AND DAY(NOW()) >= DAY("DateNaissance")
THEN 12 ELSE
CASE WHEN MONTH(NOW()) > MONTH("DateNaissance") AND DAY(NOW()) < DAY("DateNaissance")
THEN -1 ELSE 0
END
END
END AS "mois",
DATEDIFF('DAY', CAST(YEAR(NOW()) || '-' || RIGHT( 0 || MONTH(NOW()) - casewhen DAY(NOW()) < DAY("DateNaissance")
THEN 1 ELSE 0
END, 2) || '-' || RIGHT( 0 || DAY("DateNaissance"), 2) AS DATE) , NOW() ) AS "jours" FROM "Table1"