Nejčastější dotazy/Base/121
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Jak vypočítat věk z data narození?
- Při zadání pole obsahujícího data narození vypočítejte aktuální věk.
Dotaz bude následující
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"
Výpočet věku na nejbližší den:
Dotaz vypadá takto
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"