What's the difference between recombinant DNA technology and PCR?

Okay so an example is when your producing erythropoietin using the two different methods. Do they do the same thing just different ways or do they work together to produce more erythropoietin? I.e. does PCR create more of it (because only a small amount can be extracted) and then recombinant DNA technology clones it or do both processes clone the gene for insertion into the body? Any help is greatly appreciated.What's the difference between recombinant DNA technology and PCR?
PCR makes copies of a certain gene (depending on the primer used) but not of others in a mixture of genes.

Recombinant DNA technology is what you call the process of glueing together DNA from different sources.