Nota
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Capaian ke halaman ini memerlukan kebenaran. Anda boleh cuba menukar direktori.
Returns null if col is equal to zero, or col otherwise.
For the corresponding Databricks SQL function, see nullifzero function.
Syntax
from pyspark.databricks.sql import functions as dbf
dbf.nullifzero(col=<col>)
Parameters
| Parameter | Type | Description |
|---|---|---|
col |
pyspark.sql.Column or str |
The column to check. |
Examples
from pyspark.databricks.sql import functions as dbf
df = spark.createDataFrame([(0,), (1,)], ["a"])
df.select('*', dbf.nullifzero(df.a)).show()
+---+-------------+
| a|nullifzero(a)|
+---+-------------+
| 0| NULL|
| 1| 1|
+---+-------------+