Dynamic Dataset And Dynamic Column

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SSRS

Situation - I want a dataset which is generated dynamically means In SQL query i create a temporary table in which it is not fixed that how much column and name of column will generate , so i want to attach dataset with this query and and also want to display information in Tablix it can be dynamic because we dont know the column name and no of columns
,I dont have total column fixed it could be any name and any no of columns

So please give some ideas so that i work on it
Thank you