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.

    Age calculation, results in the form "xx years"

    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:

    Example calculated on the 02/07/2011

    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"