imsdb command codes - proc options
DESCRIPTION
IMSDB COMMAND CODES - PROC OPTIONS. WITH COMMAND CODE ELIGIBILITY.TRANSCRIPT
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IMSDB-COMMAND CODES & PROC OPTIONS WWW.SRINIMF.CO
M
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Command Codes
A Clear positioning and start the call at the beginning of the database.
C Use the concatenated key of a segment to identify the segment.
D Retrieve or insert a sequence of segments in a hierarchic path using only one call, instead of using a separate (path) call for each segment.
F Back up to the first occurrence of a segment under its parent when searching for a particular segment occurrence. Disregarded for a root segment.
G Prevent randomization or the calling of the HALDB Partition Selection exit routine and search the database sequentially.
L Retrieve the last occurrence of a segment under its parent.
M Move a subset pointer to the next segment occurrence after your current position. (Used with DEDBs only.)
N Designate segments that you do not want replaced when replacing segments after a Get Hold call. Typically used when replacing a path of segments.
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Command CodesP Set parentage at a higher level than what it usually is (the lowest-level SSA of the call).Q Reserve a segment so that other programs cannot update it until you have finished processing and updating it.R Retrieve the first segment occurrence in a subset. (Used with DEDBs only.)S Unconditionally set a subset pointer to the current position. (Used with DEDBs only.)U Limit the search for a segment to the dependents of the segment occurrence on which position is established.V Use the hierarchic level at the current position and higher as qualification for the segment.W Set a subset pointer to your current position, if the subset pointer is not already set. (Used with DEDBs only.)Z Set a subset pointer to 0, so it can be reused. (Used with DEDBs only.)
- Null. Use an SSA in command code format without specifying the command code. Can be replaced during execution with the command codes that you want.
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Command Code EligibilityCommand Code GU GHU GN GHN GNP GHNP REPL ISRT DLET
A X
C X X X X
D X X X X
F X X X X
G X
L X X X X
M X X X X X
N X
P X X X X
Q X X X X
R X X X X
S X X X X X
U X X X X
V X X X X
W X X X X X
Z X X X X X X
- X X X X X X
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Proc Options
G - Your program can read segments. R - Your program can read and replace segments.I - Your program can insert segments.D - Your program can read and delete segments.A - Your program can perform all the processing options. It is equivalent to specifying G, R, I, and D.
Copyright 2014
Proc Options…
GON,GONP – When invalid pointer, IMS encounters GG status code, IMS will use different path to access data. For DEDB database
GOT,GOTP – IMS will retry, when encounters invalid pointer. For Fast Path Database.
