Good morning,
I'm developing a biometric system based on iris recognition and the templates of every user are stored in a database. Unfortunately I have no experience with databases.
I would know if is there a way to read in memory the content of the database in 1 shot ( it's possible in VB IIRC ) intead of looping on every database entry.
For example in my case every entry has 4 fields:

  1. user id - QString
  2. iris code 1 - uchar array[1560]
  3. iris code 2 - uchar array[1560]
  4. iris code 3 - uchar array[1560]

This because if there are too much entries in the database it can take long time to loop on every one.

Best Regards,
Franco