2. Using DELETE command in Spark? The DELETE in spark-SQL is a DML command that is used to remove unwanted records from a table in database. We can specifyWHEREclause in DELETE commanddefines a conditionfor removing only the selected unwanted rows from the target table. Syntax: // Syntax ...
In the above example,df.head(len(df) - 1)returns all rows except the last one, effectively dropping the last row from the DataFrame. Similarly, usingDataFrame.head()in combination withDataFrame.shape[0]to drop the last row from the DataFrame. Thedf.shape[0]gives you the number of rows ...