Do you need double quotes in certain places?
SET VAR vamp_dateCol_min TEXT = ('(MIN('' + .vcol_date + ''))')
Or instead of using literal parens and quotes, do the ASCII codes work
in certain places?
( = (CHAR(40))
) = (CHAR(41))
' = (CHAR(39))
SET VAR vamp_dateCol_min TEXT = +
('(MIN(+(CHAR(39)) + .vcol_date + (CHAR(39))+))')
I've only skimmed the code and haven't test this; your mileage may vary,
past performance does guarantee future results, some assembly required.
Doug
On 12/10/2021 7:08 PM, Bruce Chitiea wrote:
Razzak: Thank you.
If I understand your sample, my code should read:
SET VAR vcol_date TEXT = 'cpoDate'
SET VAR vtableName TEXT = 'cpoHeader'
SET VAR vamp_dateCol_min TEXT = ('(MIN(' + .vcol_date + '))')
SET VAR vamp_dateCol_iyr4 TEXT = ('(IYR4(' + .vcol_date + '))')
SET VAR vstring TEXT = +
('SELECT *&vamp_dateCol_min* INTO vfts_dateStart INDICATOR vind1
FROM' & *.vtableName* & 'WHERE *&vamp_dateCol_iyr4* = .vyearStart')
&vstring
...which returns the error: "Column or variable MIN not found (2515)"
Perplexing. But! Progress. By defining the "vamp_" variables in your
correct syntax (as shown and run above), this code now works:
SELECT *&vamp_dateCol_min* INTO vfts_dateStart INDICATOR vind1 +
FROM *&vtableName* WHERE *&vamp_dateCol_iyr4* = .vyearStart
Sadly, if I insert this code into parens as the vstring definition,
the error: "Syntax is incorrect for the command SELECT (2045)" is
returned.
So, still one level of mystery remains.
Best wishes, Bruce
Bruce A. Chitiea | SafeSectors, Inc.
112 Harvard Ave #272 | Claremont CA 91711-4716 | USA
/[email protected]/ | +011 (909) 238-9012 c | +011 (909) 912-8678 f
------ Original Message ------
From: "A. Razzak Memon" <[email protected]>
To: [email protected]
Sent: 12/10/2021 1:41:19 PM
Subject: Re: [RBASE-L] - Ampersanding in the Dark
Bruce,
Try this very simple approach to form a command with correct syntax
to execute.
SET VAR vTableName TEXT = 'cPOHeader'
SET VAR vString TEXT = ('SELECT ... FROM'&.vTableName)
&vString
See how the variable "vString" is executed.
Have fun!
Razzak
At 04:21 PM 12/10/2021, Bruce Chitiea wrote:
Gurus and Gurettes:
My greatest coding challenge remains the use of ampersand variables.
I get the concept, but my execution ... hoo boy.
So here's what works:
  SELECT (MIN(cpoDate)) INTO vdateStart INDIC vind1 +
   FROM cpoHeader WHERE (IYR4(cpoDate)) = .vyearStart
But I need to sub-out the table name, and column name 'cpoDate' with
the likes of 'invDate', 'shipDate', etc.Â
This does the trick for the column name:
  SET VAR vcol_date TEXT = 'cpoDate'
  SET VAR vamp_dateCol_min TEXT = '(MIN(&vcol_date))'
  SET VAR vamp_dateCol_iyr4 TEXT = '(IYR4(&vcol_date))'
  SELECT &vamp_dateCol_min INTO vfts_dateStart INDICATOR vind1 +
   FROM cpoHeader WHERE &vamp_dateCol_iyr4 = .vyearStart
... but only so long as the literal tablename 'cpoHeader' is
included in the FROM clause.
This returns a syntax error:
  SET VAR vtableName TEXT = 'cpoHeader'
  SELECT ... FROM .vtableName ...
... as does this:
  SET VAR vtableName TEXT = 'cpoHeader'
  SELECT ... FROM &vtableName ...
... as does this:
  SET VAR vtableName TEXT = 'cpoHeader'
  SET VAR vamp_from_tablename TEXT = 'FROM .vtableName'
  SELECT ... &vamp_from_tableName ...
... as does this
  SET VAR vtableName TEXT = 'cpoHeader'
  SET VAR vamp_from_tablename TEXT = 'FROM &vtableName'
  SELECT ... &vamp_from_tableName ...
Clearly, I'm flailing. Any assistance much appreciated!Â
Bruce
Bruce A. Chitiea |Â SafeSectors, Inc.
112 Harvard Ave #272 |Â Claremont CA 91711-4716 |Â USA
[email protected]Â |Â +011 (909) 238-9012 c |Â +011 (909)
912-8678 f
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