Difference between DB time OLAP time frontend time when execute the query

hi all,
can you any one explain the difference between DB time, OLAP time, frontend time when execute the query

Each BEx quey form a SQL query which is called query execution plan.
So,
DB Time is the time taken to read the record from data base by the SQL statement.
OLAP time is the time taken to process the calculations/formula involved.
Frontend Time is the time taken to present the output. For ex: while displaying the data in Bex analyser if your query involves a hierarchy, then the presentation time will be more. It also includes the time user taken to enter the query selection input.

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Difference between open loop and closed loop mode when finding the index on a stepper motor axis.

I have a test system which uses a PXI-7352 motion controller with a MID-7602 stepper motor drive to position a 200 step/revolution stepper motor with an attached 1000 line encoder. The MID-7602 is configured for 64 microsteps per step, giving 12,800 microsteps and 4000 encoder counts per revolution. The system is controlled using LabView 7.1 and NI-Motion 6.13. To home the motor, I've defined a sequence in MAX which first finds the reverse limit switch and then moves forward to the encoder index pulse.
When finding its reference in open loop mode, the system its reference at the same microstep each time. When findings its reference in closed loop mode, the system finds its reference somewhere within about a 20 microstep wide range.
I hope somebody out there with more experience with this controller can describe the difference between finding the encoder index in open loop mode and finding the encoder index in closed loop mode.
Thanks,
Mark Moss

Hello Mark,
I suspect that the behavior you are experiencing has today
with the resolution difference between your encoder and your
microstepping. Let me illustrate with an
example:
Example Setup
Stepper
Motor
NI
Motion Controller
10
steps per encoder pulse (Every 10 steps the controller gets an encoder
pulse, therefore positions 0-9 all appear to be 0 to the controller)
The
system has a maximum of 3 pull in moves set
Open Loop Scenario
The
system is commanded to go to position 9.
The
controller sends out 9 pulses.
The
motor moves to position 9.
Closed Loop Scenario
The
system is commanded to go to position 9.
The
controller sends out 9 pulses.
The
motor moves to position 9.
The
controller checks its position and sees that it is still at position 0
because it has not received an encoder pulse.
Because
the controller thinks it is still at position 0, it sends another 9 pulses
as its first pull in move.
The
motor moves to position 18.
The
controller checks its position and sees that it is at position 10 because
it has only received one encoder pulse.
Because
the controller thinks it is still at position 10, it sends1 reverse pulse
as its second pull in move.
The
motor moves to position 17.
The
controller checks its position and sees that it is at position 10 because
it has only received one encoder pulse.
Because
the controller thinks it is still at position 10, it sends and additional
single reverse pulse as its third pull in move.
The
motor moves to its final position of 16.
I believe something similar is happening with your
application as it looks for the index pulse.
Because the controller does not compensate for what it perceives as
position error in open loop mode, the motor always goes to the same commanded
position. In closed loop mode, the motor
is bouncing around inside the single index encoder pulse trying to find a
certain position.
There are several recommendations I can make towards
correcting this behavior. These
recommendations are in order of effectiveness:
Setup
your system so that there are more encoder counts per revolution than
steps per revolution.
Turn
off pull-in moves by setting them to 0 in MAX.
Use an
open loop configuration.
Play
around with the pull in window in MAX.
Regards,
Luke H

Difference between Avg OLAP time and Avg Frontend Time

Good morning all!
What is the difference between Avg OLAP time and Avg Frontend Time?
I thought OLAP time would be included in Frontend time, but the numbers are not matching up?
Thanks so much!

Hi,
Front-End time is the Renderring time of the object at the front-end. Basically when ever a BI Application or BI application object is executed it spends time at various levels like at Data Manager, OLAP, Planning, Front-end. Can check the stat's in view RSDDSTAT_OLAP.
When the query is taking long time so u need to the time at ST03 Tcode/else RSDDSTAT table .Here u can find the DB time , OLAP time, Front end time If the DB time is more than 30% of time of total time then you got for Compressin , aggregates, indexes partitioning.
The capture of query runtime statistics is done differently in 3.5 and in BI 7.0
However, the OLAP time and DB times are always captured as two different things.
In 3.5 refer to fields QTIMEDB and QTIMEOLAP. They are two separate measurements. In 7.0, they are TIMEREAD and TIMEOLAP in rsddstat_dm and rsddstat_olap tables.
pls go through this link:
http://help.sap.com/saphelp_nw70/helpdata/en/43/e39fd25ff502d2e10000000a1553f7/frameset.htm
Hope this helps
Regards
csm reddy

Difference between Stock Transfer Horizon and Planning Time Fence

Hi Experts,
Could you plz help to explain the difference between stock transfer horizon and planinng time fence?
Appreciated your professional input to address my confusion.

Hi Gavin,
The stock transfer horizon is used in SNP planning, it is the time period within which SNP does not create any stock transfer requisitions.
The planning time fence is used by PPDS planning. It is the time period within which the PPDS planning does not create any orders. The orders lying within this period are considered to be firmed by the PPDS planning.
Functionally, the stock transfer horizon/ production horizon in SNP are analogous to the planning time fence in PPDS, which provide the system ability to keep the plan firm/unchanged within this period.
Hope this helps!
Regards,
Umesh

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Hi,
We have a Zreport...to improve the performance i created Index on few Data Base table..before my changes it used to take more than 15 minutes after the changes it taking less than 1 min for the same variant and for other variants also.
But when executing the first in morning its taking the same time more than 15 min.Please let me know how to increase the performance when executing first time also,
Thanks,
Kiran.

Hi all,
Appreciate your valuable replies...
@ Thomas: i do accept with your solution running a background job..but user is not accepting for it..thanks for your reply.
@Siegfried Boes : for testing purpose Im running this manytimes..but for user they may
require when ever they need to know open oders.the volume of the data is barongs 300-350 at
max.
@Brad Bohn : After creating the index the repose time reduced to half ...i hope i have
created a right index.
Observation here...I executed the report in production system more than 5 times it took the
same time, my changes are still in quality..so i think may be for selecting the right index
its taking this much time.and for the next time is taking right index n doing it so it taking
less.
Do you accept it?.if so Please let me know how to explicitly say the select statement to
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1)Now I use Lightrom 5.7 how to upgrade to 6 or CC?
2) What is the difference between 6 and CC version?
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1)Now I use Lightrom 5.7 how to upgrade to 6 or CC?
Purchase the standalone upgrade from here: Products
Download CC version from here: Explore Adobe desktop apps | Adobe Creative Cloud
2) What is the difference between 6 and CC version?
See this comparison chart: Compare Lightroom versions | Adobe Photoshop Lightroom CC
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Rob Cole's ExifMeta plugin displays the Subject Distance field (and much more). Unfortunately, his Web site appears to be down again. He used to be very active here, but he hasn't posted in several months.

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iPad apps are designed specifically for the iPad and will not run on the iPhone or iPod Touch. iPhone/iPod apps will run on the iPad, but will only take up an iPhone sized portion of the iPad screen (though you get a 2x button which effectively doubles each pixel in both directions so may appear pixelated). There are also 'universal' apps (which have a '+' symbol against them in the store) which have processing in them to recognise the device that they are on and will tailor the display accordingly (so will make use of the iPad's larger screen).

Looking for new laptop what are the differences between pro and air? Besides size. Does the air preform like the pro?

Looking for new laptop what are the differences between pro and air? Besides size. Does the air preform like the pro?

The NEW macbook Pro and Air are EXTREMELY close in form factor
The newest macbook Pro is essentially a larger macbook Air with Retina display and options for speed in increasing prices up to an independent graphics and quad core processor.
both Air and new Pro now have PCIe SSD and permanent RAM.
The Air is the lightweight portable form factor, fast to boot and shut down, but with longer battery life than any of the macbook pro in 13"
Now the new macbook Pro and macbook Air are extremely close in form factor and nature.
both have 802ac wifi
both have permanent RAM, no superdrive
both are slim profiles and SSD
The only real differences now are (in the most expensive Pros) faster processors and quadcore processors and top end model autonomous graphics.
....and of course the retina display
both are now "very good for travel"
Other than features the form factor of the Air and Pro are VERY close now,....so now its merely a matter of features and price more than anything.
You need an external HD regardless of what you get for backups etc. Drop into an Apple store and handle both and make your choice based on features, such as Retina or non-retina, .... both at a distance now look like the same computer.
The Pro weighs more, ....but nowhere near what it used to just a month ago on the older macbook Pros
The NEW macbook Pro is a different creature entirely than the older macbook Pro, .....the new Pro is thicker than the Air, but id frankly call the NEWEST Pro a "macbook Air with Retina display" , or
Maybe a “macbook Air PRO with Retina display”
Instead of Air VS Pro now,.....its really a smooth transition from Air to pro without comparing say, 2 different creatures, now its like contrasting a horse from a race horse.
Either one in 8gig of RAM (preferably)... the 4gig upgrade costs very little, the I7 you will notice only 15% faster on heavy applications over the I5, and NOTHING on most APPS.....I5 has longer battery life.
As you see below, the non-Retina 13" AIR is 82% of the Macbook with Retina display in resolution
there is no magical number of pixels per inch that automatically equates to Retina quality.
http://www.cultofmac.com/168509/why-you-might-be-disappointed-by-the-resolution- of-those-new-retina-display-macs-feature/
A huge internal SSD isnt a game changer for anything, you need an external HD anyway
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http://www.youtube.com/watch?v=oDqJ-on03z4
http://www.anandtech.com/show/7113/2013-macbook-air-core-i5-4250u-vs-core-i7-465 0u/2
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11.7 I5 ……11.4 I7
Cinebench
1.1 I5….1.41 I7
IMovie Import and Opt.
6.69 I5….5.35 I7
IMovie Export
10.33 I5…8.20 I7
Final Cut Pro X
21.47 I5…17.71 I7
Adobe Lightroom 3 Export
25.8 I5….31.8 I7
Adobe Photoshop CS5 Performance
27.3 I5…22.6 I7
Reviews of the newest Retina 2013 Macbook Pro
13”
Digital Trends (13") - http://www.digitaltrends.com/laptop-...h-2013-review/
LaptopMag (13") - http://www.laptopmag.com/reviews/lap...play-2013.aspx
Engadget (13") - http://www.engadget.com/2013/10/29/m...-13-inch-2013/
The Verge (13") - http://www.theverge.com/2013/10/30/5...ay-review-2013
CNet (13") - http://www.cnet.com/laptops/apple-ma...-35831098.html
15”
The Verge (15") - http://www.theverge.com/2013/10/24/5...w-15-inch-2013
LaptopMag (15") - http://www.laptopmag.com/reviews/lap...inch-2013.aspx
TechCrunch (15") - http://techcrunch.com/2013/10/25/lat...ok-pro-review/
CNet (15") - http://www.cnet.com/apple-macbook-pro-with-retina-2013/
PC Mag (15") - http://www.pcmag.com/article2/0,2817,2426359,00.asp
Arstechnica (15") - http://arstechnica.com/apple/2013/10...-pro-reviewed/
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Is there any differences between black and white ipod touch ?? only the color or there are hardware differences?

is there any differences between black and white ipod touch ?? only the color or there are hardware differences?

You're welcome.
What?
Sorry, but no. The parts are identical with the only difference being a white housing or a black housing.

If I execute the query on a cube now my OLAP processor where will come

hi can any body help regarding this
If I execute the query on a cube now my OLAP processor where will come first(SID table or Fact Tbl or Dimension Tbl)

hi,
i think first is coming to fact table, then dim and sid tables.
regards
harikrishna N

Difference between two date ,according to office time.

hi,
How can I get diffrence between two date.
If I select from-date 20-03-2012 09:30AM and to-date 20-03-2012 06:30PM then output should be 1 day(as it is office time from 09:30 AM TO 06:30 PM).
ACCORDINGLY If I select from-date 20-03-2012 09:30AM and to-date 21-03-2012 02:00PM then output should be 1.5 day
select 24*(to_date(:P2_TO_DATE,'DD-MM-YYYY HH:MIPM') - to_date(:P2_FROM_DATE,'DD-MM-YYYY HH:MIPM'))"date" from dual;

Hello Shirish,
WITH dates AS(
    SELECT TO_DATE ('20-03-2012 09:30AM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('20-03-2012 06:30PM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
    UNION ALL
    SELECT TO_DATE ('20-03-2012 09:30AM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('20-03-2012 04:15PM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
    UNION ALL
    SELECT TO_DATE ('20-03-2012 09:30AM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('21-03-2012 02:00PM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
    UNION ALL
    SELECT TO_DATE ('20-03-2012 09:30AM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('21-03-2012 12:00PM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
    UNION ALL
    SELECT TO_DATE ('20-03-2012 04:30PM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('21-03-2012 02:00PM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
    UNION ALL
    SELECT TO_DATE ('20-03-2012 04:30PM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('22-03-2012 02:00PM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
    UNION ALL
    SELECT TO_DATE ('20-03-2012 04:30PM', 'DD-MM-YYYY HH:MIPM') AS start_date
           ,TO_DATE ('22-03-2012 10:00AM', 'DD-MM-YYYY HH:MIPM') AS end_date
    FROM    dual
,times as(
SELECT start_date
       ,end_date
       ,TRUNC (end_date - start_date) days
       ,MOD (end_date - start_date,1) hours
       ,(start_date - 9.5/24 - TRUNC (start_date))*24 offset_start
       ,(end_date - 9.5/24 - TRUNC (end_date))*24 offset_end
       ,(end_date - 9.5/24 - TRUNC (end_date))*24
        - (start_date - 9.5/24 - TRUNC (start_date))*24 offset_diff
FROM    dates
SELECT TO_CHAR(start_date, 'DD-MM-YYYY HH:MIPM') AS start_date
       ,TO_CHAR(end_date, 'DD-MM-YYYY HH:MIPM') AS end_date
       ,days
       ,ROUND(offset_start,2) offset_start
       ,ROUND(offset_end,2) offset_end
       ,ROUND(offset_diff,2) offset_diff
       ,CASE WHEN offset_diff > 4 THEN
            days + 1
        WHEN offset_diff > 0 THEN
            days + 0.5
        WHEN offset_diff = 0 THEN
            days
        WHEN offset_diff + 9 > 4 THEN
            days + 1
        ELSE
            days + 0.5
        END computed_days
FROM timesThe first step (subquery times) computes the full days and the difference between start_date and end_date, compared to the beginning of the office ours (9.5 /24)
The second step takes the days and according to the possible values of the difference adds a half or a full day.
Regards
Marcus
Edited by: Marwim on 19.03.2012 11:23
CASE offset_diff = 0

Difference Between Basic Date Scheduling and Lead Time Scheduling.

Dear FRndz,
Kindly help me out the difference between the Basic Date Scheduling and Lead Time Scheduling.
Regards,
SRini

Dear,
Basic scheduling :
1.Basic dates are calculated.
2.Exact to day.
3.No cap reqmts are generated.
4.Uses the inhouse production time from material master.
5.Carried out automatically during planning run.
In basic date calculation ( order start date/ order finish date ) the system always
calculates backward scheduling.
1. From the reqmts date the system subtracts the GR processing time to
calculate the order fininsh date.
2. From the order finish date the system subtracts the inhouse production time to calculate the order start date.
3. From the order start date the system subtracts the opening period given in scheduling margin key to calculate the order opening date.
Lead time scheduling :
1.Exact to second
2.ie production start date /time and finish date and time are calculated.
3. cap reqmts are generated.
4. uses times from routing.
5. carried out only if the scheduling mode in MD02 screen is kept with indicator 2.
From the order finish date the system subtracts the float after production to calculate the production finish date.
From the production finish date the individual operations in the routing are scheduled backwards to calculate production start date.
From the production start date the system subtracts the float before production
to calculate order start date.
Same thread.
https://forums.sdn.sap.com/click.jspa?searchID=19281092&messageID=3548465
Please refer this link,
[Difference|scheduling]
Hope clear to you.
Regards,
R.Brahmankar

Difference between b = b * 2 and b *= 2 when compiling

I am new to Java. When I am trying the following code snippet it is giving me following errors:
class CharAndInt {
     public static void main(String args[])     {
          char c = 'a';
          int i = 2000;
          byte b = 50;
b = b * 2;     //b *= 2;
          System.out.println("Character is : " + c + " and Integer is : " + i + " and Byte is : " + b);
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When I use b = b * 2, it gives following compile time error:
possible loss of precision
found : byte
required : int
However if use b *= 2, it complies and runs successfully
I believe both are same expressions, then why is the difference.
P.S. Same error was there when using 'chars' but not with 'ints'

HI
Note that the compound assignment always carries a casting operation, it means that in your programme:
b *= 2; is equal to b = (byte) b * 2;
check out the link for more info: http://docs.oracle.com/javase/specs/jls/se7/html/jls-15.html#jls-15.26.2
Cheers
Faramarz

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Where is the problem?
Best regards!

Shay, I don't use both faces-config and adf task flow! When I failed with task flow I tried faces-config.
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Best regards!

Display difference of a Date field and today's date in the query

hi experts,
I have a query which has a date field called 'Effective Date.'
I just need to a add a column in the query that shows me the diffenrence between 'Effective Date' and the date the query is run (key date).
Do i need a custom exit to accomplish this?
The new column can either display the number days elapsed from 'Effective Date' to the key date or it can also display Number of Years/ Months / days.
Any ideas?
Thanks,

Check this if it helps:
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Difference between DB time OLAP time frontend time when execute the query

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