pyspark - How to use AND or OR condition in when in Spark
107 pyspark.sql.functions.when takes a Boolean Column as its condition. When using PySpark, it's often useful to think "Column Expression" when you read "Column". Logical operations on …
Comparison operator in PySpark (not equal/ !=) - Stack Overflow
Aug 24, 2016 · The selected correct answer does not address the question, and the other answers are all wrong for pyspark. There is no "!=" operator equivalent in pyspark for this …
Filtering a Pyspark DataFrame with SQL-like IN clause
Mar 8, 2016 · Filtering a Pyspark DataFrame with SQL-like IN clause Asked 9 years, 9 months ago Modified 3 years, 8 months ago Viewed 123k times
PySpark: multiple conditions in when clause - Stack Overflow
Jun 8, 2016 · Very helpful observation when in pyspark multiple conditions can be built using & (for and) and | (for or). Note:In pyspark t is important to enclose every expressions within …
How to print the result of current_date () in PySpark?
Aug 4, 2023 · The function that you're trying returns an object of PySpark column type and is used to set a column's values to the current date. You can create a DataFrame with this column and …
Pyspark: Select all columns except particular columns
Jun 13, 2018 · I have a large number of columns in a PySpark dataframe, say 200. I want to select all the columns except say 3-4 of the columns. How do I select this columns without …
pyspark : NameError: name 'spark' is not defined
Alternatively, you can use the pyspark shell where spark (the Spark session) as well as sc (the Spark context) are predefined (see also NameError: name 'spark' is not defined, how to solve?).
How to check if spark dataframe is empty? - Stack Overflow
Sep 22, 2015 · 4 On PySpark, you can also use this bool(df.head(1)) to obtain a True of False value It returns False if the dataframe contains no rows
How to find count of Null and Nan values for each column in a …
Jun 19, 2017 · How to find count of Null and Nan values for each column in a PySpark dataframe efficiently? Asked 8 years, 5 months ago Modified 2 years, 8 months ago Viewed 291k times
Pyspark dataframe LIKE operator - Stack Overflow
Oct 24, 2016 · What is the equivalent in Pyspark for LIKE operator? For example I would like to do: SELECT * FROM table WHERE column LIKE "*somestring*"; looking for something easy …