# \[how to\] using USR1058N or, in general, how to retrieve parameter information

**URL:** <https://techcommunity.softwareag.com/t/how-to-using-usr1058n-or-in-general-how-to-retrieve-parameter-information/205976>\
**Category:** Forum\
**Tags:** Adabas-Natural, Natural, Natural-Code-Samples\
**Created:** [October 31, 2019, 9:15am UTC](https://techcommunity.softwareag.com/t/how-to-using-usr1058n-or-in-general-how-to-retrieve-parameter-information/205976 "2019-10-31T09:15:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Tagan\_Anto](https://avatars.discourse-cdn.com/v4/letter/t/2acd7d/32.png) [@Tagan\_Anto](https://techcommunity.softwareag.com/u/Tagan_Anto)\
**Post date:** [October 31, 2019, 9:15am UTC](https://techcommunity.softwareag.com/t/how-to-using-usr1058n-or-in-general-how-to-retrieve-parameter-information/205976/1 "2019-10-31T09:15:40Z")

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hi all,  
I need to use USR1058N for retrieve fields name of a DDM.  
But, how to use USR1058N?  
Is there a guide for the SYSEXT programs and subprograms? how to retrieve parameter information of a sysext subprogram?

I hope you understand and sorry for my english  
Thank you

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**Author:** ![George\_Cooper](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/george_cooper/32/7831_2.png) [@George\_Cooper](https://techcommunity.softwareag.com/u/George_Cooper)\
**Post date:** [October 31, 2019, 10:18am UTC](https://techcommunity.softwareag.com/t/how-to-using-usr1058n-or-in-general-how-to-retrieve-parameter-information/205976/2 "2019-10-31T10:18:23Z")

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What is your Natural environment - Mainframe, Unix, Windows, NaturalONE?

Here’s a link to the Unix documentation for Tools and Utilities. See the Chapter for SYSEXT.  
[url][http://techcommunity.softwareag.com/ecosystem/documentation/natural/nat912unx/print/utis.pdf[/url]](http://techcommunity.softwareag.com/ecosystem/documentation/natural/nat912unx/print/utis.pdf%5B/url%5D)

SYSEXT is a utility/menu/library/directory that contains or lists all of the USRnnnn API modules. Most are subprograms like USR1058N, and each should have corresponding Text object like USR1058T that describe the purpose and parameters, and a Program source example of how to set up the parameters and call the routine, like USR1058P.

Hope that helps.  
George

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**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\
**Post date:** [April 2, 2021, 3:43pm UTC](https://techcommunity.softwareag.com/t/how-to-using-usr1058n-or-in-general-how-to-retrieve-parameter-information/205976/3 "2021-04-02T15:43:44Z")

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