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matthewdavies
New Contributor III

Do While Loop

Hi all,

Getting an error when trying to loop through my field names.

Set n=1;

Do while ($(n)<9)

  for each f in 'Territory_From$(n)_Comm1'

  for each t in 'Territory_To$(n)_Comm1'

  for each s in 'Sea_Sum$(n)_Comm1'

  Journeys_a:

  Load

  UniqueID,

  UniqueID&'.'&$(n) as LineID,

  pick($(n),$(f)) as From,

  pick($(n),$(t)) as To,

  pick($(n),$(s)) as SeaSum

  resident Quotes;

  Let n=$(n)+1;

Loop

little piece of background, I create my nth number.

I load in a table using the nth number, then i want to add 1 and loop until it reaches 8 on this occasion. There maybe other ways to do this but I'm looking for this method as I'm going to expand it to replace a few more field names using the looping functions but I've fallen at the first hurdle.

Any help would be great.

Thanks, Matt

Tags (2)
7 Replies

Re: Do While Loop

On average, it helps those 100000+ Community members quite a lot if you can tell us what error your are getting. Reprint the message text or post a screenshot.

BTW You have 4 nested loop constructs (a DO WHILE and 3 FOR statements), but I see only the LOOP terminator and no NEXT at all.

hrlinder
Honored Contributor

Re: Do While Loop

did you try to define LET n=1 as first Definition (instead of SET n=1)

MVP
MVP

Re: Do While Loop

Where are you getting the error?

And what do you expect to get using the for each ... in loops?

You are missing NEXT statements for each FOR statement.

I don't understand your logic with the pick(), since each variable f,t,s only holds a single value a time and won't expand to a csv list, as pick() function expects.

flipside
Valued Contributor II

Re: Do While Loop

In addition to other posts, you also want to set up your loop with Do while n<9 and not Do while ($(n)<9) or Do while $(n)<9.

Usually expanding the variable using the $ doesn't matter but it does in this statement.

flipside

PS You also need to terminate the Loop with a semi-colon, too.

MVP & Luminary
MVP & Luminary

Re: Do While Loop

Perhaps something like this works better:

Temp:

CrossTable(FieldName,Value)

LOAD *

Resident Quotes;

Result:

LOAD

     UniqueID,

     UniqueID & '.' & Mid(FieldName, Index(FieldName,'_')-1,1) as LineID,

     If(WildMatch(FieldName, 'Territory_From*'),Value) as From,

     If(WildMatch(FieldName, 'Territory_To*)',Value) as To

     If(WildMatch(FieldName, 'Sea_Sum*)',Value) as SeaSum,

Resident Temp;


talk is cheap, supply exceeds demand
matthewdavies
New Contributor III

Re: Do While Loop

Thank you, didn't make it clear but the error message i am getting says "Loop".

flipside
Valued Contributor II

Re: Do While Loop

That'll be, as Peter says, the For Each statements each need a Next statement. The error is saying 'Loop' isn't the right syntax to end the "For each s" statement.

Something like ...

Set n=1;

Do while n<9

  for each f in 'Territory_From$(n)_Comm1'

  for each t in 'Territory_To$(n)_Comm1'

  for each s in 'Sea_Sum$(n)_Comm1'

  Journeys_a:

  Load

  UniqueID,

  UniqueID&'.'&$(n) as LineID,

  pick($(n),$(f)) as From,

  pick($(n),$(t)) as To,

  pick($(n),$(s)) as SeaSum

  resident Quotes;

Next s;

Next t;

Next f;

  Let n=$(n)+1;

Loop;

flipside