ORACLE10G is a server, if the machine installed oracle10g, there is no need to install Oracle client, as long as the DNSis configured, you can use Plsql devement connection Of course you can also install oracle10g and Oracle client at the same time
Oracle client, which has a database management tool, a tool for configuring DNS, and so on, if the machine is not a server, does not have the oracle10g installed and needs to install Oracle client to access the server
Plsql Devement is a database tool that configures DNS to connect to a database using Plsql devement
Plsql developer This is a third-party software developed by Oracle and must have Oracle client support, and you can use Plsql devement to connect to the database without a client on the machine where the Oracle service is installed (DNS is configured)
Note: You have installed oracle10g to configure both services, you shut down the database by stopping both services
About the relationship between oracle10g, Oracle client, and Plsql devement