ReferenceSQL language referenceFunctionsBuilt-in functionsAlphabetical list of built-in functionslower functionOn this pagelower function Applies to: Databricks SQL Databricks Runtime Returns expr with all characters changed to lowercase according to the collation of expr. Syntax lower(expr) Arguments expr: A STRING expression. Returns A STRING. Examples SQL> SELECT lower('LowerCase'); lowercase Related functions lcase function initcap function ucase function upper function