pyspark.sql.functions.upper#

pyspark.sql.functions.upper(col)[source]#

Converts a string expression to upper case.

Added in version 1.5.0.

Changed in version 3.4.0: Supports Spark Connect.

Parameters:

colColumn or column name: target column to work on. A column that evaluates to a string.

Returns:

Column: upper case values. Returns a column that evaluates to a string.

See also

pyspark.sql.functions.lower()
pyspark.sql.functions.ucase()

Examples

>>> from pyspark.sql import functions as sf
>>> df = spark.createDataFrame(["Spark", "PySpark", "Pandas API"], "STRING")
>>> df.select("*", sf.upper("value")).show()
+----------+------------+
|     value|upper(value)|
+----------+------------+
|     Spark|       SPARK|
|   PySpark|     PYSPARK|
|Pandas API|  PANDAS API|
+----------+------------+