This can be done when i am using remote database but is it possible to apply in local database ? i want to prevent duplicate entry in database .
Only with a filter on the content of the data in the table.
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I don't know if i'm doing something wrong but if i put inside the "Read file" command an resource file path "lines from file" the function doesn't work
Doing so means that there is path to another file inside your original file.
Just use resource anywhere in your code.