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In xquery, does xs:string* denote a sequence?
xs:string*
eg
xdmp:document-get-collections( uri as xs:string ) as xs:string*
是,xs:string*表示此函数返回一个包含零个或任意数量的字符串项的字符串序列。xs:string(没有修饰符)只允许一个字符串项目,xs:string?零或一个,xs:string+至少一个项目。
xs:string
xs:string?
xs:string+