Thanks for your reply. Regarding that I can not post the screenshot here, I simply describe the page on SAS@studio. On the left panel, there are some items: 1. Server Files and Folders; 2. Tasks and Utilities 3. Snippets 4. Libraries. I usually call for 'TAQ' database in 'Libraries'. But now there are not so many databases I see before. Later on, I found the data I want in 'Server Files and Folders'>'wrds'>'taq'. I am confused why it is changed a lot over one night.
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