có chỉ mục cho một đường và một thành phố, và không sử dụng một tag ing tag is STARS (XML, like HTML, is case-insensitive, so STARS is clearly the
to group these. This distinction appeared as well in Fig. 4.19. root-tag). The first element definition says that inside the matching pair of tags
iTotice that the document of Fig. 4.21 does not represent the relationship . . . we will find zero or more STAR tags, each representing a
:+,tars-inV between stars and movies. We could store information about each single star. It is the * in (STAR*) that says "zero or more," i.e., "any number
movie of a st,ar within the section devoted to that star, for instance:
Mark Hamill
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