# MU and PE

**URL:** <https://techcommunity.softwareag.com/t/mu-and-pe/79298>\
**Category:** Forum\
**Tags:** Adabas-Natural, Adabas, Adabas-on-Mainframes, Adabas-Basics-on-Mainframes\
**Created:** [October 18, 2008, 3:21pm UTC](https://techcommunity.softwareag.com/t/mu-and-pe/79298 "2008-10-18T15:21:58Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![RJL](https://avatars.discourse-cdn.com/v4/letter/r/7ab992/32.png) [@RJL](https://techcommunity.softwareag.com/u/RJL)\
**Post date:** [October 18, 2008, 3:21pm UTC](https://techcommunity.softwareag.com/t/mu-and-pe/79298/1 "2008-10-18T15:21:58Z")

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Hi All,

I am new to Natural-Adabas world. I have 2 questions:

```
   1. Can i define MU inside PE? Sameway can i use PE inside MU?

   2. I have one multiple value field. Assuming that 1st , 3rd and 191th occrrence is known then what will be output if i display MU?
                 i) Using Null suppression
                 ii) Without null suppression

```

Thanks,  
Rohan.

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**Author:** ![Douglas\_Kelly](https://sea1.discourse-cdn.com/techcommunity/user_avatar/techcommunity.softwareag.com/douglas_kelly/32/102_2.png) [@Douglas\_Kelly](https://techcommunity.softwareag.com/u/Douglas_Kelly)\
**Post date:** [October 21, 2008, 6:40pm UTC](https://techcommunity.softwareag.com/t/mu-and-pe/79298/2 "2008-10-21T18:40:43Z")

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1. MU in PE, yes. PE in MU - no: MU is a single field.
2. Don’t know what you mean by “occurrence is known”.  
If you display MU(1-191) you will see 191 occurrences. Some these may be blank/zero. If null suppression is off for the field and you store values in occurrence 1,3 and 191, then you will have 191 occurrences with the other 188 containing a null value (blank or zero). If null suppression is on and you do the same store, there will be 3 occurrences stored in the record as occurrence 1,2,and 3; the other 188 are not stored.

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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, 2:51pm UTC](https://techcommunity.softwareag.com/t/mu-and-pe/79298/3 "2021-04-02T14:51:03Z")

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