Geet questions

• Create variable in database using ALTER TABLE and UPDATE
• Match character vector in a dataframe with another character vector and trim character
• Filter different variables based on different conditions
• Number of rows in 40GB tar.gz file without uncompressing it?
• dplyr Replace values in multiple variables
• How to convert tar.gz file to zip using Python only?
• sparkr databricks error: too many open devices
• How to read data in chunks in Python dataframe?
• dplyr mutate a variable by comparing a variable and vectors of different sizes
• How to create a list from another list using specific criteria in Python?

Geet answers