Argument count in a routine like $# or $@ in UNIX..

prabu · Post by **prabu** » Sat Aug 12, 2006 11:03 am

Hello Folks,
could you please share your expertise on the following:-

1) is there any special variables like $#(in UNIX) to find out the argument count in a routine.

please let me know!

regards,
Pabu

kduke · Post by **kduke** » Sat Aug 12, 2006 1:49 pm

DataStage Server Routines are stored in DS_ROUTINES. I posted a job called KgdGenHtmlRoutineDocs which will print a routine out as html. Field 7 is the argument count.

ray.wurlod · Post by **ray.wurlod** » Sat Aug 12, 2006 10:25 pm

The number of arguments in any DataStage Server Routine (the kind you call from a Routine activity in a job sequence) is fixed, not variable. There ought to be no need to interrogate the number.

In parallel routines, you are in the world of C, so you need argc for the count and *argv for the array of arguments.

prabu · Post by **prabu** » Mon Aug 14, 2006 12:11 am

ray.wurlod wrote:The number of arguments in any DataStage Server Routine (the kind you call from a Routine activity in a job sequence) is fixed, not variable. There ought to be no need to interrogate the number.
I ...

makes sense. just to confirm, the argument type in a routine should always be a scalarit cannot take a dimesnion/vector as the argument , right? . i am exploring the possibilty of making a custom aggregate that concatenates the all the strings passed to it.

Thanks Ray and Kim!

ray.wurlod · Post by **ray.wurlod** » Mon Aug 14, 2006 3:22 am

Arguments in DataStage BASIC routines may be scalar, dynamic arrays or (pointers to) dimensioned arrays.

There is no support in the DataStage calling mechanisms for dimesioned arrays, but it is possible in routines called from other routines.