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Focal Point    Focal Point Forums  Hop To Forum Categories  WebFOCUS/FOCUS Forum on Focal Point     [SOLVED] How to check if a column exists in a file before COMPUTE?

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[SOLVED] How to check if a column exists in a file before COMPUTE?
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Gold member
posted
I have the following code:

TABLE FILE ACR_DATA
SUM
     PER1 AS ''
     PER2 AS ''
     COMPUTE DIFF1/P32BS = PER2 - PER1; AS ''
     PER3 AS ''
     PER4 AS ''
     COMPUTE DIFF2/P32BS = PER4 - PER3; AS ''
     PER5 AS ''
     PER6 AS ''
     COMPUTE DIFF3/P32BS = PER6 - PER5; AS ''
BY SRTING NOPRINT
BY  ORGANIZATION_LEVEL_3 NOPRINT
BY  DEPARTMENT_CODE NOPRINT
BY  SUBJECT NOPRINT
ON  SUBJECT SUBHEAD


That is throwing this error:

0 ERROR AT OR NEAR LINE    383  IN PROCEDURE rom_proj_inst_plan
(FOC003) THE FIELDNAME IS NOT RECOGNIZED: PER4
BYPASSING TO END OF COMMAND
(FOC009) INCOMPLETE REQUEST STATEMENT


because I'm finding that PER4 and PER6 columns may not be in the file: ACR_DATA

Anyone have any creative ways to work-around and perform the COMPUTE only if the column exists?

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


8.0.02M, Oracle 11.2 (AIX), Windows 2008R2, HTML, PDF, Excel
 
Posts: 72 | Registered: November 12, 2012Report This Post
Virtuoso
posted Hide Post
CHECK FILE ACR_DATA HOLD AS ACRFIELDS
TABLE FILE ACRFIELDS
PRINT FIELDNAME 
IF FIELDNAME EQ PER$$
ON TABLE SAVE
END
-RUN
-SET &PER_COUNT = 0 + &RECORDS;
will capture the count (assuming none of the non-varying fieldnames starts with PER); take it from there.
 
Posts: 1925 | Location: NYC | In FOCUS since 1983 | Registered: January 11, 2005Report This Post
Expert
posted Hide Post
There is also the SYSCOLUM table that will have this info as well


Waz...

Prod:WebFOCUS 7.6.10/8.1.04Upgrade:WebFOCUS 8.2.07OS:LinuxOutputs:HTML, PDF, Excel, PPT
In Focus since 1984
Pity the lost knowledge of an old programmer!

 
Posts: 6347 | Location: 33°49'23.0"S, 151°11'41.0"E | Registered: October 31, 2006Report This Post
Gold member
posted Hide Post
quote:
Originally posted by j.gross:
CHECK FILE ACR_DATA HOLD AS ACRFIELDS
TABLE FILE ACRFIELDS
PRINT FIELDNAME 
IF FIELDNAME EQ PER$$
ON TABLE SAVE
END
-RUN
-SET &PER_COUNT = 0 + &RECORDS;
will capture the count (assuming none of the non-varying fieldnames starts with PER); take it from there.


Interesting - I can see the good files have:
  
NUMBER OF FIELDS=    15
 

while the bad (missing columns) have:
 
NUMBER OF FIELDS=    13
 
 
Posts: 72 | Registered: November 12, 2012Report This Post
Gold member
posted Hide Post
quote:
Originally posted by Waz:
There is also the SYSCOLUM table that will have this info as well


Thanks Waz - I found THIS which I can try to use.
 
Posts: 72 | Registered: November 12, 2012Report This Post
Guru
posted Hide Post
Yep

TABLE FILE SYSCOLUM
PRINT COLTYPE LENGTH
WHERE TBNAME EQ 'CAR'
WHERE NAME EQ 'MODEL'
-*ON TABLE SAVE
END
-RUN  


Awesome, thank you.


WebFOCUS Administrator @ Worldpay FIS
PROD/DEV/TEST: 8204, SANDBOX: 8206 soon - BIP, Reportcaster, Resource Manager, EUM, HyperStage soon, DB: HIVE,Oracle,MSSQL
 
Posts: 291 | Location: Greater Cincinnati  | Registered: May 11, 2005Report This Post
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