Page 1 of 2
String maths
Posted: Tue Aug 21, 2007 2:02 pm
by asitagrawal
Hi,
I am using String Maths for arithmetic operations on bigger numbers,
but I am facing a problem with SSUB:
Example:
Code: Select all
SSUB(1234567890.12,1234567890.2) is resulting in 0 instead of -0.08
i,e SSUB is returning a 0 when the difference is less than -0.1
Getting this difference calculation right, is vary critical for my process.
Please advice.
Posted: Tue Aug 21, 2007 3:52 pm
by ArndW
I'm not at a DS system right now to check, but could you see if the computation would work if you do it on integers and not real numbers? Then you could remove the decimals in the string and subsequently put them back into the result via division
Posted: Wed Aug 22, 2007 2:27 am
by robvonk
I tried the 'Ans = SSUB(1234567890.12,1234567890.2)' code in a routine and it gives back 0.08 correctly.
Are you trying to put it into an integer?
Posted: Wed Aug 22, 2007 3:20 am
by asitagrawal
robvonk wrote:I tried the 'Ans = SSUB(1234567890.12,1234567890.2)' code in a routine and it gives back 0.08 correctly.
Are you trying to put it into an integer?
The results are confusing...
My test routine is:
Code: Select all
Ans = Arg1-Arg2:' ':SSUB(Arg1,Arg2):' ':SDIV(SSUB(SDIV(Arg1,1,2),SDIV(Arg2,1,2)),1,2):' ':TRIM(Arg1,' ','B')
PRINT -1*Arg1
PRINT SMUL(-1,Arg1)
if SDIV(SSUB(Arg1,Arg2),1,2) < 0
THEN
PRINT '1'
END
ELSE
PRINT '2'
END
if SDIV(SSUB(Arg1,Arg2),1,2) = 0
THEN
PRINT '3'
END
ELSE
PRINT '4'
END
The results are like
this
I hope one can notice the difference...
Also, let me correct my statement too...
Earlier I wrote:
Code: Select all
i,e SSUB is returning a 0 when the difference is less than -0.1
Actually,
Code: Select all
i,e SSUB is returning a 0 when the difference is [b]more[/b] than -0.1
Just got confused by the negative signs,
, sorry!
Posted: Wed Aug 22, 2007 3:46 am
by robvonk
I get
these results.
It seems that my results are as expected.
We're using Datastage server 7.5.1 on windows. Maybe there's a bug in your version?
Posted: Wed Aug 22, 2007 4:11 am
by asitagrawal
robvonk wrote:I get
these results.
It seems that my results are as expected.
We're using Datastage server 7.5.1 on windows. Maybe there's a bug in your version?
I wish I had your machine
Hey is it possible for you to share the Hardware, Operating System and DataStage version details please...
Posted: Wed Aug 22, 2007 4:13 am
by asitagrawal
Mine is DataStage 7.5.1A
Posted: Wed Aug 22, 2007 4:26 am
by asitagrawal
I have tried the same routine on a differrent server hosting 7.5, but I am getting same results....
Can anyone explain what could be wrong ??
Posted: Wed Aug 22, 2007 6:00 am
by ArndW
See what configuration changes you have made, could you post the differences shown by "smat -t" ?
Posted: Wed Aug 22, 2007 6:04 am
by asitagrawal
ArndW wrote:See what configuration changes you have made, could you post the differences shown by "smat -t" ?
Hi ArndW,
I dont know how to execute "smat -t".
Please guide me. I am on Windows machine.
Thanks
Posted: Wed Aug 22, 2007 6:09 am
by asitagrawal
Sorry..
I think I have found it... Below are the results:
Code: Select all
Current tunable parameter settings:
MFILES = 150
T30FILE = 200
OPENCHK = 1
WIDE0 = 0x3dc00000
UVTEMP = D:\Ascential\DataStage\Engine\UVtemp
SCRMIN = 3
SCRMAX = 5
SCRSIZE = 512
QDEPTH = 16
HISTSTK = 99
QSRUNSZ = 2000
QSBRNCH = 4
QSDEPTH = 8
QSMXKEY = 32
TXMODE = 0
LOGBLSZ = 512
LOGBLNUM = 8
LOGSYCNT = 0
LOGSYINT = 0
TXMEM = 32
OPTMEM = 64
SELBUF = 4
Press any key to continue...
FSEMNUM = 23
GSEMNUM = 97
PSEMNUM = 64
FLTABSZ = 11
GLTABSZ = 75
RLTABSZ = 75
RLOWNER = 300
PAKTIME = 300
NETTIME = 5
QBREAK = 1
VDIVDEF = 1
UVSYNC = 0
BLKMAX = 8192
PICKNULL = 0
SYNCALOC = 1
* MAXRLOCK = 74
ISOMODE = 1
PKRJUST = 0
PROCACMD = 0
PROCRCMD = 0
PROCPRMT = 0
ALLOWNFS = 1
CSHDISPATCH = NOT_SUPPORTED
Press any key to continue...
SHDISPATCH = NOT_SUPPORTED
DOSDISPATCH = CMD.EXE
* NLSMODE = 1
NLSREADELSE = 1
NLSWRITEELSE = 1
NLSDEFSOCKMAP = NONE
NLSDEFFILEMAP = MS1252
NLSDEFDIRMAP = MS1252-CS
NLSNEWFILEMAP = NONE
NLSNEWDIRMAP = MS1252
NLSDEFPTRMAP = MS1252
NLSDEFTERMMAP = MS1252
NLSDEFDEVMAP = MS1252
NLSDEFGCIMAP = NONE
NLSDEFSRVMAP = MS1252-CS
NLSDEFSEQMAP = MS1252
NLSOSMAP = MS1252-CS
NLSLCMODE = 1
NLSDEFUSERLC = US-ENGLISH
NLSDEFSRVLC = US-ENGLISH
LAYERSEL = 0
OCVDATE = 0
MODFPTRS = 1
Press any key to continue...
THDR512 = 0
UDRMODE = 0
* UDRBLKS = 0
MAXERRLOGENT = 100
JOINBUF = 4095
64BIT_FILES = 0
TSTIMEOUT = 60
PIOPENDEFAULT = 0
MAXKEYSIZE = 768
SMISDATA = 0
EXACTNUMERIC = 15
MALLOCTRACING = 0
CENTURYPIVOT = 1930
SPINTRIES = 0
SPINSLEEP = 0
DISKCACHE = -1
DCBLOCKSIZE = 16
DCMODULUS = 256
DCMAXPCT = 80
DCFLUSHPCT = 80
DCCATALOGPCT = 50
DCWRITEDAEMON = 0
DMEMOFF = 0x0
Press any key to continue...
PMEMOFF = 0x0
CMEMOFF = 0x0
NMEMOFF = 0x0
AUTHENTICATION = 0
IMPERSONATION = 0
INSTANCETAG = dae
HOSTFILELOCKING= 0
I hope it is datastage wide and NOT project specific ...
Posted: Wed Aug 22, 2007 6:13 am
by robvonk
We have Datastage 7.5.1 (no A mentioned) running on Windows 2000.
I can't find a 'smat' executable on the client.
Posted: Wed Aug 22, 2007 6:16 am
by ArndW
Even though the parameters you've changed are rather odd they won't affect this issue. What platform are you on?
Posted: Wed Aug 22, 2007 6:34 am
by asitagrawal
ArndW wrote: What platform are you on?
DataStage: Server Edition 7.5.1A
Operating System: Windows 2003 Server Enterprise Edition SP1
Please let me know if you are looking for any other information also..
Posted: Wed Aug 22, 2007 6:35 am
by asitagrawal
robvonk wrote:We have Datastage 7.5.1 (no A mentioned) running on Windows 2000.
I can't find a 'smat' executable on the client.
smat.exe is available in ..\Ascential\DataStage\Engine\Bin\
Please do post your results...
