How to use Oracle 11g client?

I may be asking something silly but I don't see any sql*plus or any GUI kind of interface to connect my Oracle server remotely. I tried SQL Pl开发者_如何学JAVAus but it's a command line interface, don't know what to do with that.

Oracle SQL developer is a GUI client

pl/sql developer and toad are both decent, but nonfree, Oracle gui clients. If you're going to do a lot of work on packages or stored procs/funcs, one of these will be worth every bit of money you spend.

squirrel sql is an opensource client. There's a squirrel-derived plugin for eclipse called SQL Explorer; it's really good for looking at your data to help get your programs right.