Map or database errors

[wawuo]

I currently found that:

1. The map middle number in the database is not continuous, and the map cannot be imported and exported, otherwise it will cause teleportation points to be incorrect.
2. NPCs cannot be exported, modified and then imported again. After deletion, they cannot be imported (it will be blank).
   I can't solve these problems, but I can bypass these problems. I decided to migrate the database to AccessDB. Now I have completed almost 50%. If there is time later, I will migrate to PostgreSQL. Haha.

PS. In the debugging with Visual Studio, I found that the MapIndex in LoadDB() is 387, which does not match the actual 385

[wawuo]

Previously, there was a discussion on this link
https://www.lomcn.net/forum/threads/how-to-solve-these-map-and-database-errors.110974/#post-1195508