You want to combine several CSV files into a single data file after you connect to a folder. What must be true about these CSV data files? (Select all that apply.) A. They must be stored in the same folder.B. They must have the same schema.C. They must have the same file type.D. They must have no duplicate data rows.
Question
You want to combine several CSV files into a single data file after you connect to a folder. What must be true about these CSV data files? (Select all that apply.) A. They must be stored in the same folder.B. They must have the same schema.C. They must have the same file type.D. They must have no duplicate data rows.
Solution
The following must be true about the CSV data files you want to combine into a single data file:
A. They must be stored in the same folder. This is necessary because when you connect to a folder in data processing software, the software will only be able to access and combine files that are stored in that specific folder.
B. They must have the same schema. This means that all the CSV files should have the same column headers in the same order. If the schemas are different, the data from different files may not align correctly when combined.
C. They must have the same file type. In this case, all files should be CSV files. If there are files of a different type in the folder, the software may not be able to read and combine them correctly.
D. They must have no duplicate data rows. This is not necessarily required for the files to be combined. However, having duplicate data rows could lead to redundancy and inaccuracies in the combined data file. It would be best to remove any duplicates before combining the files.
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