1 Case 1: With no option:
4 Usage: csql [ [-u username] [-p passwd] ] [ [-H hostname] [-P port] ]
6 username -> username to connect to database
7 password -> password to connect to database
8 hostname -> hostname to connect to database through network
10 sqlfile -> filename containing sql statements
11 Case 3: With wrong username and wrong password :
13 Case 4: With wrong username :
15 Case 5: With wrong password :
17 Case 6: With correct user name and password :