Sqlite storing file unseen

I need your help.

I have window app, that uses sqlite. It stores data into TestDB.sqlite file.

When I test in debug mode, or release mode, TestDB.sqlite file is located in the same folder.

But when I make project setup version, and then Install that, there is no TestDB.sqlite file... storing function is work properly, but TestDB.sqlite file is unseen... Please help me.