Nota
L-aċċess għal din il-paġna jeħtieġ l-awtorizzazzjoni. Tista’ tipprova tidħol jew tibdel id-direttorji.
L-aċċess għal din il-paġna jeħtieġ l-awtorizzazzjoni. Tista’ tipprova tibdel id-direttorji.
Returns true if col is not null, or false otherwise.
For the corresponding Databricks SQL function, see isnotnull function.
Syntax
from pyspark.sql import functions as dbf
dbf.isnotnull(col=<col>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col |
pyspark.sql.Column or str |
The column to check. |
Examples
from pyspark.sql import functions as dbf
df = spark.createDataFrame([(None,), (1,)], ["e"])
df.select('*', dbf.isnotnull(df.e)).show()
+----+---------------+
| e|(e IS NOT NULL)|
+----+---------------+
|NULL| false|
| 1| true|
+----+---------------+