I have this question on how is deletion done on Mobile development, in lieu with Database of course, which or what is the best practice in these field, Does deletion of records permanently in database recommended on mobile dev, or flagging in database that a record is deleted more efficient?… i know that in large scale DBMS u have to flag a record that is deleted so u can view past records i just read that on the DBMS book though, does the same principle apply on mobile development, considering that i’m only developing an application for a very small scale only
Any inputs form all you veteran DBAs and Mob. Devs out there are much Appreciated..
It depends on the design requirements of your application, so it has nothing to do with the efficiency of app. What you read is for large scale systems where audit is required. Since you are developing an application which will run on mobile platform and would probably not require auditing, so in that case its fine to delete such records (at least that’s what I would prefer to do).
Flagging records would increase the size of database and is not a good idea to leave unwanted data (memory) on your device.