Databases versus XML?

• The XML File<machines domain=“npac” type=“pc” ><machine os=“nt” cpu=“pentium2” memory=“128” >maryland</machine> <machine os=“nt” cpu=“pentium3” memory=“256” >georgia</machine> <machine os=“95” cpu=“mmx” memory=“128” >foxport1</machine> …..</machines><machines domain=“cis” > <machine os=“solaris” cpu=“sparcXX” >top</machine> …..</machines>

• is equivalent to database tables such as

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