How many rows does an inner merge of orders and stalls produce
pandas · from merge and join
pd.mergehow=on=left_on/right_onsuffixesindicatorvalidatePutting the kettle on…
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Exercise 3
How many rows does an inner merge of orders and stalls produce? Return the number.
your answer
stuck? the lesson behind it
merge and join
The named side is kept in full — and duplicate keys multiply your rows.