problem with Configuring a Connection to a Database using Visual Explain

["huwang wang" <kongyishi@yahoo.com.cn>]

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Hi,

After,modifying the content of  my pg_hba.conf file 
to local all trust,I can log into the graphical tool
Adminstrator using username ccm which had been created
by myself using command line and then I  created a
database named ccm61 using the graphical tool.

Then I turned to Visual Explain.When I configured a
connection to the database ccm61,I had used the
following parameter:
database:ccm61
Host:localhost
port:5432
username: ccm
password:ccm_xyz

After I clicked  the Test button,the system response
is:

Test 1: Driver
FAILED
Unable to load JDBC driver.

Test 2: Connection
FAILED
Unable to connect to database.
Reason: No suitable driver

Can you help me out?
 



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