Pastaba.
Prieigai prie šio puslapio reikalingas įgaliojimas. Galite bandyti prisijungti arba pakeisti katalogus.
Prieigai prie šio puslapio reikalingas įgaliojimas. Galite bandyti pakeisti katalogus.
Limits the result count to the number specified.
Syntax
limit(num: int)
Parameters
| Parameter | Type | Description |
|---|---|---|
num |
int | Number of records to return. Will return this number of records or all records if the DataFrame contains less than this number of records. |
Returns
DataFrame: Subset of the records.
Examples
df = spark.createDataFrame(
[(14, "Tom"), (23, "Alice"), (16, "Bob")], ["age", "name"])
df.limit(1).show()
# +---+----+
# |age|name|
# +---+----+
# | 14| Tom|
# +---+----+
df.limit(0).show()
# +---+----+
# |age|name|
# +---+----+
# +---+----+