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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [Closed]JOIN on Cluster Master file.

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[Closed]JOIN on Cluster Master file.
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srajeevan
Platinum Member
posted
Join in SQL.

select 
A.StudentId
,B.StudentID
,B.StudentName 
from College A INNER JOIN Department B
ON A.StudentId = B.StudentId

I can display StudentId from both Tables.

I have a similar situation in Webfocus.
I have a cluster master file where SYN_A is joined with SYN_B on a column ACTIVITY_ID and a cluster master file is made out of these two.
I want most of the data from SYN_B.SO i have the code below.
  
TABLE FILE CLUSTERTABLE
BY CLUSTERTABLE.SYN_B.ACTIVITY_ID
BY CLUSTERTABLE.SYN_B.SALES
END


IF i USE 
 BY CLUSTERTABLE.SYN_A.ACTIVITY_ID

instead of 
 BY CLUSTERTABLE.SYN_B.ACTIVITY_ID

i get No Data error.
Why is that?Since JOIN is made on ACTIVITY_ID ,it is supposed to be the same values right?

This message has been edited. Last edited by: srajeevan,


WF8206,Windows 7,8,10
HTM,PDF,EXCEL
 
Posts: 229 | Location: MI | Registered: September 13, 2017Report This Post
BabakNYC
Virtuoso
posted Hide Post
Turn on the SQL trace for your WebFOCUS report and see what SQL it's generating.

  
-SET &ECHO=ALL;
SET XRETRIEVAL=OFF
SET EMPTYREPORT=OFF

-*** Show SQL statements
SET TRACEON    = STMTRACE//CLIENT

-*** Show SQL generated statement trace
-*SET TRACEON = STMTRACE/1/CLIENT

-*** Show SQL generated sub-statement trace
SET TRACEON    = STMTRACE/2/CLIENT

-*** Disable the trace stamp (Date/Time etc)
SET TRACESTAMP = OFF

-*** Set trace line wrapping - # of characters
SET TRACEWRAP  = 132

-*** Activate SQL tracing
SET TRACEUSER  = ON


WebFOCUS 8206, Unix, Windows
 
Posts: 1853 | Location: New York City | Registered: December 30, 2015Report This Post
MartinY
Virtuoso
posted Hide Post
If you are not including any field from SYN_A the children (SYN_B) is not read (accessed) by the connector.

If you want to use field from the child (SYN_B), you must use at least one field from the parent (SYN_A).

Or since you
quote:

I want most of the data from SYN_B.


have SYN_B as the parent and SYN_A as the child


WF versions : Prod 8.2.04M gen 33, Dev 8.2.04M gen 33, OS : Windows, DB : MSSQL, Outputs : HTML, Excel, PDF
In Focus since 2007
 
Posts: 2409 | Location: Montreal Area, Qc, CA | Registered: September 25, 2013Report This Post
srajeevan
Platinum Member
posted Hide Post
Thanks BabakNYC.
Figured out the issue from the SQL Trace.
When i created the cluster master file,i dragged and dropped the SYN_B to SYN_A in IWay DM,it created inner join on SIMILAR name fields.
In SQL trace it showed what all fields are being joined.So it created invalid joins on drag and drop.
I removed those invalid joins and now the report is working.

@MartinY..I am using SYN_B as parent now.Thanks


WF8206,Windows 7,8,10
HTM,PDF,EXCEL
 
Posts: 229 | Location: MI | Registered: September 13, 2017Report This Post
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