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Today weamp;#39;re going to take a look at a very common task when it comes to cleaning data and itamp;#39;s also a very common interview question that you might get if youamp;#39;re applying for a data or financial analyst type of job. How can you remove duplicates in your data? Iamp;#39;m going to show you three methods, itamp;#39;s important that you understand the advantages and disadvantages of the different methods and why one of these methods might return a different result to the other ones. Letamp;#39;s take a look Okay, so I have this table with sales agent region and sales value I want to remove the duplicates that occur in this table but first of all what are the duplicates? well if we take a look at this row for example and take a look at this one, is this a duplicate? no right? because the sales value is different, but what about this one and this one? These are duplicates. What I want to happen is that every other occurrence of this line i
