Nóta
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as shíniú isteach nó eolairí a athrú.
Teastaíonn údarú chun rochtain a fháil ar an leathanach seo. Is féidir leat triail a bhaint as eolairí a athrú.
Applies the f function to all Row of this DataFrame.
Syntax
foreach(f: Callable[[Row], None])
Parameters
| Parameter | Type | Description |
|---|---|---|
f |
function | A function that accepts one parameter which will receive each row to process. |
Examples
df = spark.createDataFrame(
[(14, "Tom"), (23, "Alice"), (16, "Bob")], ["age", "name"])
def func(person):
print(person.name)
df.foreach(func)