Get unique values per table column

Dear MATLAB experts,

I'm trying to figure out how to get the unique values of each column of a table in MATLAB and I still haven't figure out on how to do it. The table consists of variables, such as 'country', 'company name' and 'clients'. For this reason, it is important for me to figure out each one of the unique countries, company names and clients to be found in this dataset.

I have tried using the unique function and also including a for loop to go through each one of the columns and get the unique values of each column, but with no success yet.

for i=1:width(uf_transactiondates)
     uniqueValues_Transactions = unique(uf_transactiondates.(i), 'first', 'rows');
end

I would really appreciate your help.

Thank you in advance

[Mathieu NOE]

maybe you should havea look there

How can I find unique cells in a table in MATLAB R2014a that contains non-string cell arrays? - MATLAB Answers - MATLAB Central (mathworks.com)