Database Testing:
(1) Add mysql JDBC to Jmeter lib folder and restart Jmeter(2) Right click on test name -> add Thread group
(3) Right click Thread group -> add JDBC connection configuration
(4) Thread group -> sampler ->JDBC Request
(5) Write query
(6) thread group -> Listener -> view result in table
(7) thread group -> Listener -> view result in tree
(8) run and validate
FTP Upload and Download:
(1) Right click on test name -> add Thread group
(2) Right click Thread group -> sampler -> FTP request
(3)