The Merge Function

Learn how to use the merge function of Pandas.

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Merging DataFrames

The merge function is another way to combine data from multiple resources. The concat function compares column names or row indexes when combining DataFrames, whereas the merge function compares values in the given column or columns to check matching rows.

The merge function merges two DataFrames based on the common values in shared columns. Suppose we have a product and a sales DataFrame as shown below:

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