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sql problem [message #396067] Fri, 03 April 2009 12:49 Go to next message
aarti81
Messages: 235
Registered: December 2007
Location: USA
Senior Member
Hi All
When i run the following query am getting the below results:
SELECT STG_ITS_EMISSIONFACTOR.OPERATION,STG_ITS_EMISSIONFACTOR.SPEED,STG_ITS_EMISSIONFACTOR.VOC,STG_ITS_EMISSIONFACTOR.CO,STG_ITS_EMISSIONFA CTOR.NOX
from STG_ITS_EMISSIONFACTOR

results:
OPERATION	SPEED	VOC	CO	NOX

Operation	Speed	VOC	CO	Nox
Indianapolis	0	4.301	24.651	2.048
Indianapolis	1	4.301	24.651	2.048

But when i use the following query am getting the below results :
SELECT  STG_ITS_EMISSIONFACTOR.OPERATION,STG_ITS_EMISSIONFACTOR.SPEED,STG_ITS_EMISSIONFACTOR.VOC,STG_ITS_EMISSIONFACTOR.CO,STG_ITS_EMISSIONFA CTOR.NOX,STG_ITS_SEGMENTCATEGORY_LUT.RTDIRNTYMEAS,STG_ITS_SEGMENTCATEGORY_LUT.SEGMENT,STG_ITS_SEGMENTMULTIPLIER.MULTIPLIER  
from STG_ITS_EMISSIONFACTOR,STG_ITS_SEGMENTCATEGORY_LUT,STG_ITS_SEGMENTMULTIPLIER 


am getting the results as :
OPERATION	SPEED	VOC	CO	NOX	RTDIRNTYMEAS	SEGMENT	MULTIPLIER

Operation	Speed	VOC	CO	Nox	69 s m 15.7	23	4.69
Operation	Speed	VOC	CO	Nox	465 e m 25.1	35	4.69
Operation	Speed	VOC	CO	Nox	70 e m 84.7	47	4.69


[Mod-Edit: Frank added code-tags around the results to preserve formatting]

[Updated on: Fri, 03 April 2009 12:53] by Moderator

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Re: sql problem [message #396068 is a reply to message #396067] Fri, 03 April 2009 12:53 Go to previous messageGo to next message
BlackSwan
Messages: 25050
Registered: January 2009
Location: SoCal
Senior Member
When I run
SELECT TRUNC(SYSDATE) FROM DUAL

I get
2009-04-03



SELECT stg_its_emissionfactor.operation, 
       stg_its_emissionfactor.speed, 
       stg_its_emissionfactor.voc, 
       stg_its_emissionfactor.co, 
       stg_its_emissionfa ctor.nox 
FROM   stg_its_emissionfactor



SELECT stg_its_emissionfactor.operation, 
       stg_its_emissionfactor.speed, 
       stg_its_emissionfactor.voc, 
       stg_its_emissionfactor.co, 
       stg_its_emissionfa ctor.nox, 
       stg_its_segmentcategory_lut.rtdirntymeas, 
       stg_its_segmentcategory_lut.segment, 
       stg_its_segmentmultiplier.multiplier 
FROM   stg_its_emissionfactor, 
       stg_its_segmentcategory_lut, 
       stg_its_segmentmultiplier


no WHERE clause?

[Updated on: Fri, 03 April 2009 12:59]

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Re: sql problem [message #396069 is a reply to message #396068] Fri, 03 April 2009 13:01 Go to previous messageGo to next message
aarti81
Messages: 235
Registered: December 2007
Location: USA
Senior Member
Why should i use the WHERE clause as i'm not filtering any thing, and the tables dont have a field in common.
Re: sql problem [message #396070 is a reply to message #396069] Fri, 03 April 2009 13:03 Go to previous messageGo to next message
ThomasG
Messages: 3189
Registered: April 2005
Location: Heilbronn, Germany
Senior Member
Then why should you join them?
Re: sql problem [message #396088 is a reply to message #396069] Fri, 03 April 2009 15:11 Go to previous message
joy_division
Messages: 4644
Registered: February 2005
Location: East Coast USA
Senior Member
aarti81 wrote on Fri, 03 April 2009 14:01
Why should i use the WHERE clause as i'm not filtering any thing, and the tables dont have a field in common.


I think you should learn basic SQL before you start to use it. I can remember some of your classic questions. You don't seem to have progressed at all yet.
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