[Robelle-l] RE: Backward chain reads
Eben Yong
eben_yong@hpsm.org
Tue, 27 Jan 2004 12:55:14 -0800
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<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>Hi Ric! Yes, this technique =
works
very well, thanks. I was really just asking out of =
curiousity.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>To Answer Neil’s question =
more
precisely:</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'>We have a COBOL program that reads =
the
MEMBER-SPAN dataset using a backward chain because it wants to find the =
most
current record. The MEMBER-SPAN dataset contains health insurance
information for members, and the chronology is based on YMDEFF (in =
CCYYMMDD
format). Thus, the most current span is the first record in the =
backward-chained
read. This is really just a question of curiousity. There =
are ways
around the problem; and besides that, we are not averse to COBOL =
programming, either.</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>Database: =
HEALTH.DATA.AIH TPI:
Omnidex 3.07.59</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> </span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'>
MEMBER-SPAN
Detail &=
nbsp;
Set# 176</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
Entry: &=
nbsp;
Offset</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
MEMBER# =
X12 1 =
(!MEMBER-A(YMDEFF))</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
AFF# &nb=
sp;
X16 13</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
AFF-AREA  =
;
X2 29</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
AFF-STATUS
X2 31</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
BENEFIT-PKG
X2 33</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
BENEFIT-STATUS =
X2
35</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
BUSINESS-UNIT
X2 37</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CAP-CODE  =
;
X2 39</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CAP-CYCLE &nbs=
p;
X2 41</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CAPTYPE =
X4 43</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CARRIER =
X2 47</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CLAIM-TYPE
X2 49</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CLASS &n=
bsp;
X2 51</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
CONTRACTYPE
X2 53</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
DIVISION# &nbs=
p;
X10 55</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
EMPLSTAT  =
;
X2 65</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
ENROLL-SOURCE
X2 67</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
GROUP# &=
nbsp;
X6 69</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
GROUP-CAT &nbs=
p;
X2 75</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
HAT-CODE  =
;
X2 77</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
HEALTHSTAT
X2 79</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
INSURANCE &nbs=
p;
X2 81</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
MARITALSTAT
X2 83</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
MEDICARE-PLAN
X2 85</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
MEM-OV-FLAGS
X4 87</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
OP# &nbs=
p;
X4 91</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
PRE-EXIST =
X2 =
;
95</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
PRIME-SECOND
X2 97</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
PROG# &n=
bsp;
X2 99</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
REASON &=
nbsp;
X4 101</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
REGION &=
nbsp;
X2 105</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
RISKPOP =
X2 107</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
STATUS &=
nbsp;
X2 109</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
TRANSCODE &nbs=
p;
X2 111</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
VOID &nb=
sp;
X2 113</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDEFF &=
nbsp;
X8 115</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDEND &=
nbsp;
X8 123</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDFIRSTCAP
X8 131</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDLASTCAP
X8 139</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDPREX =
X8 147</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDPREXEND
X8 155</span></font></p>
<p class=3DMsoNormal style=3D'text-autospace:none'><font size=3D2 =
face=3D"r_ansi"><span
style=3D'font-size:10.0pt;font-family:r_ansi'> &nb=
sp;
YMDTRANS  =
;
X8 163</span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal><font size=3D2 color=3Dnavy face=3DArial><span =
style=3D'font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DTahoma><span
style=3D'font-size:10.0pt;font-family:Tahoma'>-----Original =
Message-----<br>
<b><span style=3D'font-weight:bold'>From:</span></b> WmEGreen@aol.com
[mailto:WmEGreen@aol.com] <br>
<b><span style=3D'font-weight:bold'>Sent:</span></b> Tuesday, January =
27, 2004
11:17 AM<br>
<b><span style=3D'font-weight:bold'>To:</span></b> Eben Yong<br>
<b><span style=3D'font-weight:bold'>Subject:</span></b> Backward chain =
reads</span></font></p>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D3 =
face=3D"Times New Roman"><span
style=3D'font-size:12.0pt'> </span></font></p>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Hi Eben - =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>Here's something I use =
quite a bit
in Amisys - </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>GET MEMBER-SPAN { or CHAIN =
for a
specific set of MEMBER#s }</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>IF VOID=3D" =
"</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>SORT =
MEMBER#</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>SORT YMDEFF =
DESC</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>OUT MS1,TEMP,LINK =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>XEQ</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>IN MS1</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>SORT =
MEMBER#</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>DUP NONE KEYS =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>OUT MS2,TEMP,LINK =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>XEQ</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'>The file MS2 now contains =
the first
non-voided MEMBER-SPAN as if it were read on a backward chain. =
</span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><font size=3D2 =
face=3DArial><span
style=3D'font-size:10.0pt;font-family:Arial'> </span></font></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-left:.5in'><b><font size=3D2 =
face=3DArial
FAMILY=3DSANSSERIF PTSIZE=3D10><span =
style=3D'font-size:10.0pt;font-family:Arial;
font-weight:bold'>Wm Eric (Ric) Green<br>
(240) 446-1840 - cell# </span></font></b></p>
</div>
</div>
</DIV>
<DIV> </DIV>
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