Handling NULL in Apache Impala

COALESCE function in Apache Impala

23rd Nov 2021 SHAFI SHAIK

The NULL values are substituted with the user-defined value during the expression evaluation process using the NVL(), COALESCE(), and ISNULL() functions. The COALESCE function evaluates

ZEROIFNULL Function in Apache Impala

19th Jan 2021 SHAFI SHAIK

If you’re working on a numeric/integer column and decided to substitute null values with zero, there’s a straight forward function that solves the issue. The