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cybertaurean
New User
Joined: 22 Dec 2008
Posts: 87
Location: US
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Hi All,
I do have the following DB structure which I need to sweep through -
| Code: |
+01-------1+
+ SEGMENT1 +
+----------+
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---------------------------------------------------------------------------------
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+02-------1+ +03-------1+ +04-------1+ +08-------1+
+ SEGMENT2 + + SEGMENT3 + + SEGMENT4 + + SEGMENT8 +
+----------+ +----------+ +----------+ +----------+
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------------------------------------ |
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+05-------1+ +06-------1+ +07-------1+ +09-------1+
+ SEGMENT5 + + SEGMENT6 + + SEGMENT7 + + SEGMENT9 +
+----------+ +----------+ +----------+ +----------+ |
In case I plan to use multiple DB positioning (avoid repositions), will the code have better performance?. I will be reading SEGMENT1, SEGMENT2, SEGMENT3, SEGMENT4 and SEGMENT6.
Regards,
Sumesh |
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manikawnth
New User
Joined: 07 Feb 2007
Posts: 61
Location: Mumbai
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How will u be reading these segments?
Just the first occurrence or u sweep thru all the occurences of these segment types.
Are the segments qualified?
The performance depends on the functionality you want thus determining the approach.
Will you be reading all the segments back and forth or just read once and leave!!! |
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Sandy Zimmer
Active Member
Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE
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| Multiple PCBs within the same PSB for the same DBD - multiple positioning - is sometimes tricky. Think carefully about your process and why you need more than 1 position. If you can tell us detail about your process, we can help you decide. |
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Sandy Zimmer
Active Member
Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE
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cybertaurean
New User
Joined: 22 Dec 2008
Posts: 87
Location: US
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Hi All,
Apologies for the late reply.
Yes, I would want to sweep through the entire DB.
Say, I plan to use path call for SEGMENT4 and SEGMENT6 in the DB shown above, would it be better to have multiple positioning in place?
Regards,
Sumesh |
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Sandy Zimmer
Active Member
Joined: 13 Jun 2007
Posts: 826
Location: Wilmington, DE
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| Well, you still have not explained your process. What do you think multiple positioning has to do with your planned path call? |
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manikawnth
New User
Joined: 07 Feb 2007
Posts: 61
Location: Mumbai
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Hi Cyber,
Same concern here too...
Still i dint understand ur process?
List down step by step from which segment u want to start and the complete retrieval process and where u want to end.
Multiple positioning is useful only when u r in forward retrieval process and u want to refer a segment which is back to the current position.
Still you may not require the multiple positioning if it could be solved by some command codes.
Kindly elaborate your entire sweep sequence.
Thanks,
Manikanth |
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