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akram
Beginner
Joined: 16 Jul 2005
Posts: 1
Topics: 1
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 Posted: Sat Jul 16, 2005 4:08 am Post subject: How to edit dataset when its is big |
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| When a dataset is of big size, then when you try to edit/view, it automatically substitutes in browse mode. How to open the dataset in edit mode, when this happens? Same case with files also. |
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Cogito-Ergo-Sum
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Joined: 15 Dec 2002
Posts: 637
Topics: 43
Location: Bengaluru, INDIA
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| Posted: Mon Jul 18, 2005 1:23 am Post subject: |
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| Quote: | | How to open the dataset in edit mode, when this happens? |
You cannot! That is why, ISPF opened the dataset in the browse mode. Opening a dataset in edit mode requires some overhead as compared to browse mode. When this overhead is very high, the dataset will be opened in browse mode.
To edit the dataset, you must copy parts of it in separate datasets, edit and then merge them back. Atleast, this is the way I do.
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Mervyn
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Joined: 02 Dec 2002
Posts: 415
Topics: 6
Location: Hove, England
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| Posted: Mon Jul 18, 2005 6:36 am Post subject: |
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You may be able to get a larger region size allocated to your TSO session.
See if your colleagues can help with this.
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semigeezer
Supermod
Joined: 03 Jan 2003
Posts: 1014
Topics: 13
Location: Atlantis
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| Posted: Mon Jul 18, 2005 2:32 pm Post subject: |
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Region size per se doesn't really matter. But it is the total amount of storage you can get that makes the difference. That is controlled by much more than just the region size (IEFUSI, et al).
If by some slim chance the data set is variable blocked and very wide but with no data past a certain column, you could copy the data to a file w/ a smaller lrecl, edit it and copy it back. That is because EDIT saves the whole lrecl in storage for every record which causes you to run out of storage more quickly for large lrecl data sets. |
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Dibakar
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Joined: 02 Dec 2002
Posts: 700
Topics: 63
Location: USA
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| Posted: Tue Jul 19, 2005 8:07 am Post subject: |
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| you could open a part of dataset in fileaid and then edit it. not sure if it will work for vsam datasets. |
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