PythonQ 240-8XX Bedienungsanleitung PDF herunterladen (Seite 188)

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Kapitel 4: Einf¨uhrung in MySQL: Ein MySQL-Tutorial 167

td.suspect as tsuspect1,

id.suspect as isuspect1,

td.severe as tsevere1,

id.severe as isevere1,

p2.dead as dead2,

l2.event as event2,

h2.nurse as nurse2,

h2.doctor as doctor2,

td2.suspect as tsuspect2,

id2.suspect as isuspect2,

td2.severe as tsevere2,

id2.severe as isevere2,

l.finish_date

from

twin_project as tp

/* For Twin 1 */

left join twin_data as td on tp.id = td.id and tp.tvab = td.tvab

left join informant_data as id on tp.id = id.id and tp.tvab = id.tvab

left join harmony as h on tp.id = h.id and tp.tvab = h.tvab

left join lentus as l on tp.id = l.id and tp.tvab = l.tvab

/* For Twin 2 */

left join twin_data as td2 on p2.id = td2.id and p2.tvab = td2.tvab

left join informant_data as id2 on p2.id = id2.id and p2.tvab = id2.tvab

left join harmony as h2 on p2.id = h2.id and p2.tvab = h2.tvab

left join lentus as l2 on p2.id = l2.id and p2.tvab = l2.tvab,

person_data as p1,

person_data as p2,

postal_groups as pg

where

/* p1 gets main twin and p2 gets his/her twin. */

/* ptvab is a field inverted by tvab */

p1.id = tp.id and p1.tvab = tp.tvab and

p2.id = p1.id and p2.ptvab = p1.tvab and

/* Just the sceening survey */

tp.survey_no = 5 and

/* Skip if partner died before 65 but allow emigration (dead=9) */

(p2.dead = 0 or p2.dead = 9 or

(p2.dead = 1 and

(p2.sterbetag_date = 0 or

(((to_days(p2.sterbetag_date) - to_days(p2.geburtstagday)) / 365)

>= 65))))

and

(

/* Twin is suspect */

(td.future_contact = ’Yes’ and td.suspect = 2) or

/* Twin is suspect - Informant is Blessed */

(td.future_contact = ’Yes’ and td.suspect = 1 and id.suspect = 1) or

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