What’s the difference between the UNION and UNION ALL set operators?

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A: Answer is given below .

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A: Introduction: What's the distinction between the urlopen and urlretrieve functions?

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A: Given:

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A: Answer of above two questions mentioned below:-

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Multiple Table

In a database, a table is used to store data in the form of rows and columns. Rows are aligned horizontally and identified by one or more values in a specific column. Columns are vertically aligned and identified by a unique column name.