How to make a column a primary key so duplicate records cannot be added

sharepoint.stackexchange https://sharepoint.stackexchange.com/questions/135146

  •  02-10-2020
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سؤال

I have a text column called JPPNum, and I want to make it so a user cannot add the same JPP Number if the record with that JPP number is already in there. So no duplicate on JPP NUm, how would I do that?

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المحلول

You can select Enforce unique values in columns settings.

More info in MSDN: Enforcing Uniqueness in Column Values.

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