2. PySpark Join Multiple Columns The join syntax ofPySpark join()takes,rightdataset as first argument,joinExprsandjoinTypeas 2nd and 3rd arguments and we usejoinExprsto provide the join condition on multiple columns. Note that bothjoinExprsandjoinTypeare optional arguments. ...
PySpark DataFrame has ajoin()operation which is used to combine fields from two or multiple DataFrames (by chaining join()), in this article, you will learn how to do aPySpark Join on Two or Multiple DataFramesby applying conditions on the same or different columns. also, you will learn ...
50. What is the complete syntax of join() function in PHP?join(string1, string2) join(string1, string2, separator) join(separator, array) join(separator, string1, string2)Answer: C) join(separator, array)Explanation:The complete syntax of join() function is:...