How do I change to lowercase in hive?

Is Hive data case sensitive?

Are Hive SQL identifiers (e.g. table names, column names, etc) case sensitive? No. Hive is case insensitive.

What is Collect_list in Hive?

collect_set(col) Returns a set of objects(array) with duplicate elements eliminated. collect_list(col) Returns a list of objects(array) with duplicates.

How split function works in Hive?

Hive split(string A, string pattern) Function The split function splits the string around the pattern pat and returns an array of strings. You can also specify regular expressions as patterns.

How do I replace in Hive?

Regexp_replace function in Hive We need to define the pattern of the string like java regular expression in the Regexp_replace function. If the given string pattern match with the input string, it will replace all the occurrence of string to new string that given as a string replacement value in the function.