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omprakash.mf
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Joined: 06 Jul 2010
Posts: 12
Location: hyderabad
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Hi,
I have a string eg: string1 ="username.system.ccyymmdd.abc".
That string is a dataset name and the date value is dynamic which changes on daily bases. I dont know the lenght of the dataser name. It is also dynamic.
How can I change the value of the date everyday.
Please suggest me. |
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expat
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Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
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| The 3LQ will be invalid on the mainframe |
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nigelosberry
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Joined: 06 Jan 2009
Posts: 88
Location: Ggn, IN
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| omprakash.mf wrote: |
Hi,
I dont know the lenght of the dataser name. It is also dynamic.
Please suggest me. |
Can you confirm if the date part i.e. ccyymmdd will always be the third qualifer in the dataset name?
A qualifier must start with a character. |
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omprakash.mf
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Joined: 06 Jul 2010
Posts: 12
Location: hyderabad
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Hi nigelosberry,
Yes, it is always the third qualifier in the dataset name.
Ok think it that the third qualifier be like this ACCYYMMDD. where 'A' is a character. |
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PeterHolland
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Joined: 27 Oct 2009
Posts: 2481
Location: Netherlands, Amstelveen
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| A qualifier of 9 characters is not valid. |
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expat
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Joined: 14 Mar 2007
Posts: 8797
Location: Welsh Wales
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| Wrong, maximum length of eight for each qualifier |
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expat
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Posts: 8797
Location: Welsh Wales
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| Peter, what are you doing here, you are supposed to be on the naughty step |
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PeterHolland
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Location: Netherlands, Amstelveen
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| expat wrote: |
| Wrong, maximum length of eight for each qualifier |
My my expat,
a little slow? |
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Bill Woodger
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Joined: 09 Mar 2011
Posts: 7309
Location: Inside the Matrix
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Various ways (once you sort out the validity). Check, as always it seems, STRING, UNSTRING & INSPECT in the manuals.
You don't need the century in your date. You're not going to back-date any datasets 11 years are you? And, at a guess, the same system isn't going to be running in 89 years time. |
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omprakash.mf
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Joined: 06 Jul 2010
Posts: 12
Location: hyderabad
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Hi Expat,
Ok. Qualifier will be with 7 bytes size and it is in th form like AYYMMDD. |
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nigelosberry
New User
Joined: 06 Jan 2009
Posts: 88
Location: Ggn, IN
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| omprakash.mf wrote: |
Hi nigelosberry,
Ok think it that the third qualifier be like this ACCYYMMDD. where 'A' is a character. |
As suggested, the qualifier must fit in 8 bytes.
I have seen data set names using dates in past. The format there looks something like:
dyymmdd
where :
'd' is a constant
yy, mm and dd are diff components of date date
but if you want to include the full 'ccyy' in your dateset name instead of only 'yy', you could as well consider using date in julian(i.e. ordinal) format. |
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nigelosberry
New User
Joined: 06 Jan 2009
Posts: 88
Location: Ggn, IN
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| omprakash.mf wrote: |
Hi,
I have a string eg: string1 ="username.system.ccyymmdd.abc".
That string is a dataset name and the date value is dynamic which changes on daily bases. I dont know the lenght of the dataser name. It is also dynamic.
How can I change the value of the date everyday.
Please suggest me. |
By the way -
(1)are you creating a dataset from inside your cobol program dynamically?
(2)Or you just want to process the dataset name(for writing to a report etc.)?
(3)Or you have this dataset name in your jcl which needs changing daily? |
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Robert Sample
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Joined: 06 Jun 2008
Posts: 8696
Location: Dubuque, Iowa, USA
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COBOL does not have "strings" like C, Visual Basic, Perl, or .... In COBOL, the maximum length of EVERY variable is known at compile time. Making statements like
| Quote: |
| I dont know the lenght of the dataser name. It is also dynamic. |
shows just how little you know about COBOL. The only time a variable length can be dynamic is if (1) the variable has OCCURS DEPENDING ON, and (2) the variable is defined in LINKAGE SECTION. And even if those conditions are met, there still are no strings involved -- just alphanumeric variables.
omprakash.mf, terminology is critical in IT, where similar terms may mean very different things. Your using the term "string" when talking about COBOL indicates a lot of your lack of knowledge and skill. You need to learn the right COBOL terms and use them.
As long as your date value is in the third level of the data set name qualifier, you can use INSPECT or reference modification to find the three periods in the data set name; 2 bytes past the third period will start your date. |
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Akatsukami
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Joined: 03 Oct 2009
Posts: 1788
Location: Bloomington, IL
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| Bill Woodger wrote: |
Various ways (once you sort out the validity). Check, as always it seems, STRING, UNSTRING & INSPECT in the manuals.
You don't need the century in your date. You're not going to back-date any datasets 11 years are you? And, at a guess, the same system isn't going to be running in 89 years time. |
Yeah, that's what we said back in 1979  |
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nigelosberry
New User
Joined: 06 Jan 2009
Posts: 88
Location: Ggn, IN
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An easy way I could think of:
| Code: |
INITIALIZE W-1LQ W-2LQ W-3LQ W-4LQ
UNSTRING W-X DELIMITED BY '.'
INTO W-1LQ W-2LQ W-3LQ W-4LQ
MOVE W-YOUR-DATE TO W-3LQ
MOVE SPACES TO W-X
STRING W-1LQ '.' W-2LQ '.' W-3LQ '.' W-4LQ
DELIMITED BY SPACE
INTO W-X |
where W-X is the dataset name.
(Please test  ) |
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Bill Woodger
Moderator Emeritus
Joined: 09 Mar 2011
Posts: 7309
Location: Inside the Matrix
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Test data
| Code: |
This line intentionally left blank
ABC
ABC.DEF
ABC.DEF.dateplaceholder
ABC.DEF.dateplaceholder.GHI
ABC.DEF.GHI.dateplaceholder
ABC.DEF.GHI
ABC.DEF.GHI
dateplaceholder
ABC.dateplaceholder.DEF
ABC.DEF.GHI.JKL.MNO.PQR etc to max no of qualifiers
etc
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Anuj Dhawan
Superior Member
Joined: 22 Apr 2006
Posts: 6250
Location: Mumbai, India
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| If I got the question correctly, searching for EZACFSM1 might give you what you are looking for. |
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