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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [CLOSED] SQL code question into WF

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[CLOSED] SQL code question into WF
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Enigma006
Master
posted
Hi

I have this sample SQL code. I am not sure how to use this variable in WebFOCUS code. Can someone let me know how to use it?

  
SELECT count(*) INTO :count1
FROM sales
WHERE sale_id = 1;
'received_count1'

SELECT count(*) INTO :count2
FROM sales
WHERE sale_id = 2;
'received_count2'


I have multiple queries like this. If its a group of fields, I use SQLOUT to push them into hold file. But how do I use a value coming out of these queries? I am not sure if value is stored in COUNT1 or RECEIVED_COUNT1

Thank you

This message has been edited. Last edited by: Enigma006,


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Posts: 484 | Registered: February 03, 2009Report This Post
GamP
Virtuoso
posted Hide Post
I think it's not quite possible to do this in one go within webfocus.
Alternative would be to get the individual counts, store them in holds and -READ the holds into the corresponding &vars.


GamP
- Using AS 8.2.01 on Windows 10 - IE11.
in Focus since 1988
 
Posts: 1961 | Location: Netherlands | Registered: September 25, 2007Report This Post
Enigma006
Master
posted Hide Post
Thanks Gamp, thats the only way I have in mind.


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Posts: 484 | Registered: February 03, 2009Report This Post
njsden
Virtuoso
posted Hide Post
If all of your counts come from the very same table, you could:

SQL [your_engine]
SELECT count(case when sale_id = 1 then 1 else null end) as RECEIVED_COUNT1,
       count(case when sale_id = 2 then 1 else null end) as RECEIVED_COUNT2,
       count(case when sale_id = 3 then 1 else null end) as RECEIVED_COUNT3
  FROM sales
WHERE sale_id IN (1,2,3)
;
TABLE ON TABLE HOLD AS HCOUNTS
END
-RUN

-READFILE HCOUNTS

-TYPE &RECEIVED_COUNT1
-TYPE &RECEIVED_COUNT2
-TYPE &RECEIVED_COUNT3



Though it is not exactly an answer to your original question, it is a bit more efficient way to get many of the results you need with a single pass over your SALES table and one single data fetch from the database.

Hope this helps.


Prod/Dev: WF Server 8008/Win 2008 - WF Client 8008/Win 2008 - Dev. Studio: 8008/Windows 7 - DBMS: Oracle 11g Rel 2
Test: Dev. Studio 8008 /Windows 7 (Local) Output:HTML, EXL2K.
 
Posts: 1533 | Registered: August 12, 2005Report This Post
ABT
Master
posted Hide Post
The INTO keyword typically means it's loading a table on the RDBMS. I'm guessing that :tablename is some dialect of this (SQL Server is #tablename). Maybe DB2?

Temp tables and global temp tables are the RDBMS conceptual answer to hold files.

Refer:
http://www.simple-talk.com/sql...ables-in-sql-server/

http://publib.boulder.ibm.com/...c/admin/r0000994.htm


------------------------------------
WF Environment:
------------------------------------
Server/Client, ReportCaster, Dev Studio: 7.6.11
Resource Analyzer, Resource Governor, Library, Maintain, InfoAssist
OS: Windows Server 2003
Application/Web Server: Tomcat 5.5.25
Java: JDK 1.6.0_03
Authentication: LDAP, MRREALM Driver
Output: PDF, EXL2K, HTM

------------------------------------
Databases:
------------------------------------
Oracle 10g
DB2 (AS/400)
MSSQL Server 2005
Access/FoxPro
 
Posts: 561 | Registered: February 03, 2010Report This Post
njsden
Virtuoso
posted Hide Post
Hi ABT, his original SQL is not loading data into a table. It is actually reading a single value (one row, one field) from it and placing the result in a client "variable" (in this case, :var looks like the syntax used by Oracle to refer to bind variables).

So, to achieve a similar functionality in WebFOCUS, that is, placing the results of single-row/field query in a Dialogue Manager variable one has to HOLD the results of the query and -READ from them as GamP had already suggested.

What I was trying to illustrate was how to get those many values in a single round-trip to the database as opposed to getting many individual ones with tiny HOLD files here and there.


Prod/Dev: WF Server 8008/Win 2008 - WF Client 8008/Win 2008 - Dev. Studio: 8008/Windows 7 - DBMS: Oracle 11g Rel 2
Test: Dev. Studio 8008 /Windows 7 (Local) Output:HTML, EXL2K.
 
Posts: 1533 | Registered: August 12, 2005Report This Post
ABT
Master
posted Hide Post
quote:
Originally posted by njsden:
Hi ABT, his original SQL is not loading data into a table. It is actually reading a single value (one row, one field) from it and placing the result in a client "variable" (in this case, :var looks like the syntax used by Oracle to refer to bind variables).


I don't usually appreciate people correcting me over nits and nats, but in this case I was way off. Thanks for setting the record straight.

;-)

- ABT


------------------------------------
WF Environment:
------------------------------------
Server/Client, ReportCaster, Dev Studio: 7.6.11
Resource Analyzer, Resource Governor, Library, Maintain, InfoAssist
OS: Windows Server 2003
Application/Web Server: Tomcat 5.5.25
Java: JDK 1.6.0_03
Authentication: LDAP, MRREALM Driver
Output: PDF, EXL2K, HTM

------------------------------------
Databases:
------------------------------------
Oracle 10g
DB2 (AS/400)
MSSQL Server 2005
Access/FoxPro
 
Posts: 561 | Registered: February 03, 2010Report This Post
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