Hello @hjjijkkl
This is such a bad idea, I wonder why you want to do this. You can assign the exact same values to many variables, but even that seems pointless in most cases. And that's not what you asked. You need to re-think this whole thing. Please state your goal behind this question (goal being where you intend to go, not how you want to get there, which is to give variable multiple names).
So, I find this such a bad idea, multiple names for one variable, that I repeat the words of @Kurt_Bremser above:
In the physical structure of a dataset, there is one name and one label for each variable, so in the context of stored data, the answer is no. In the context of data step code, trickery is possible, but it only exists during that particular step, and the confusion caused by such trickery is a VERY BAD THING.
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