How does XML manage update of a data record?

webmasterbeta

New Member
In the old days an ascii sequential file was not a recommended data base media.What happened?? How do the XML parsers update records -- change the fielddata-- without requiring that the entire data base be loaded and then writtenbackto the disk? It would seem to me that you would have to load the entiredata base to change any record field and then save the entire data base tochange the single field. What am I missing??Restating the question --- if the <name>John</name> field is changed to Johnnyit will require a larger record and the entire data base will have to berewritten to accomodate this single field change -- what is happening toavoidthis?Obviously I am a new XML student -- can you help?
 
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