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<DIV><FONT face=Arial size=2>A collegue of mine posted this question to the
forums a few days ago and did not receive any response so I'm hoping someone
here may be able to answer. Thanks in advance.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT size=2><FONT size=3>Hey all. Long story short I am working on a
project to build a bridge between php and filepro. I have a series of classes
which allow me to grab the data from a specific record based on key or
number. I can also grab all records in the database, but this is problematic on
remotely large dbs.<BR><BR>So I figure I can use the index files to be able to
quickly determine what records I need to grab and then grab those records,
allowing me real time access to filepro data. I am looking at the documentation
on the index files and have some questions.<BR><BR></FONT><A
href="https://www.fptech.com/Products/Docs/FPFormat/autoix45.shtml#sort"
target=_blank><FONT
size=3>https://www.fptech.com/Products/Docs/FPFormat/autoix45.shtml#sort</FONT></A><BR><BR><FONT
size=3>First off, I dont understand what a freechain is.<BR><BR>Then I am unsure
of how to interpret the nodes.<BR><BR>What does the left pointer point to on the
non-leaf-nodes? Is it pointing to the parent? And all other pointers are
pointing to children nodes? Id assume that a non-leaf-node would only contain at
most, one other non-leaf-node and any amount of leaf nodes?<BR><BR>Leaf nodes
contain the data. I get that. Backwards pointer points to the parent node.
Forwards pointer possibly points to other leaf-nodes with a duplicate
key?<BR><BR>Am I understanding this right? If so, what the heck are free
chains?<BR><BR>Any help would be great.</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Cindy Youngman</FONT></DIV>
<DIV><FONT face=Arial size=2>Software Developer</FONT></DIV>
<DIV><FONT face=Arial size=2>Luna Carpet</FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="mailto:cyoungman@sc.rr.com">cyoungman@sc.rr.com</A> or <A
href="mailto:cyoungman@luna.com">cyoungman@luna.com</A></FONT></DIV></BODY></HTML>