project_server is used to establish the server and initial data.

Project_client is used to send the request,search, display, updata,add or delete a record.

Project_client_test is a program that runs background. it simulates multi-clients that keep send request and update the records in database.

three programs run on different workstation. 

Before running Project_client and Project_client_test, be sure the server's IP address is correct in your client program.