Build a Custom CRM with Xcode?

Is it possible to build a basic CRM with Xcode? If so, is the database linked from another program or does Xcode have the ability to do that as well? If this is a possibliity, where might I find help aids or instructions to accomplish this?

Please keep in mind, I am super new at this, so I apologize if this is a dumb question. Thank you in advance.

Build a Custom CRM with Xcode?
 
 
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