1. What kind of database do you provide?
NEST provides MySQL, MS SQL Server, and Oracle.
2. Can I use API from another operating environment in NEST IDE?
You may use open API from other operating environments. Note that open API is available to you from where you obtained it from, not NEST IDE.
3. What can I download from the local server, and how do I install it?
You do not need any other server to download from the local server.
You can use the JavaServlet-based web server provided by NEST.
4. How can I transfer data in local server to actual server?
To bring data to the actual server, you can export the data as a WAR file using WebappModule component.
You can upload the WAR file to any server that supports Java Servlet 2.5 spec.