Can a listener tell you when a database changes?

1 vue (au cours des 30 derniers jours)
Kieren Bradley
Kieren Bradley le 2 Fév 2018
Commenté : Kieren Bradley le 25 Juin 2018
I wish to have a database that is accessed by multiple users and have a figure that will update a graph when another user changes the database. Can a listener be attached to a database object to tell when a particular table has been altered?

Réponse acceptée

Arpan Badeka
Arpan Badeka le 22 Juin 2018
Hello Kieren
There is no specific way to achieve this. But what you can do is, have a timestamp column in the database table for which you want to keep the track and a trigger on insert and update that updates this row to now. Have a cron job running which is fetching the count based on the timestamp and updates the graph accordingly.
Thanks,
Arpan Badeka
  1 commentaire
Kieren Bradley
Kieren Bradley le 25 Juin 2018
Thanks for answering, I was assuming this was the case but wanted confirmation as I may have missed something.

Connectez-vous pour commenter.

Plus de réponses (0)

Catégories

En savoir plus sur Reporting and Database Access dans Help Center et File Exchange

Produits

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by