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Sqliteopenhelper Onupgrade

Sqliteopenhelper Onupgrade

Sqliteopenhelper Onupgrade sqliteopenhelper android developers alarmclock blockednumbercontract blockednumbercontract browser calendarcontract calendarcontract calendarcontractsource sqliteopenhelper onupgrade confusion android source sqliteopenhelper onupgrade confusion android sqlite database example 4 je fais ma premi re application avec une base de donn es et j ai un peu de mal comprendre la fonction onupgradeandroid quand est sqliteopenhelper oncreate onupgrade sqliteopenhelper doit appeler le super constructeur la onupgrade m thode sera appel e uniquement lorsque la version entier est plus grand que la version en cours d ex cution dans l asqliteopenhelper onupgrade method developing android apps this video is part of an online course developing android apps check out the course heresqliteopenhelper android sdk android developers the first time this is called the database will be opened and oncreate sqlitedatabase onupgrade sqlitedatabase int int and or onopen sqlitedatabase will be called once opened successfully thesqliteopenhelper supertos version de la base de donn es commen ant 1 si la version de la base ne correspond pas celle indiqu e lors de la demande d un identifiant la base onupgrade sqlitedatabase int intonupgrade sqlite database in android stack overflow onupgrade is called you do not call it yourself when version of your db changed which means underlying table structure changed etc in general it means that os is telling you hey you asked forhow to android sqlite onupgrade bhw blog as we have seen we do not want drop the database onupgrade we also do not want to assume users will get each upgrade sequentially but do want to do some version checking before running update stated veloppement android base de donn es sqlite ici on fait h riter notre classe de sqliteopenhelper on surcharge donc les m thodes oncreate et on upgrade on a aussi d clar quelques constantes relatives la table qu on va cr er finalemen.

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