SQL ReferenceSQL FunctionsString FunctionsLOWEROn this pageLOWERlowerDescriptionSyntaxVARCHAR lower (VARCHAR str)Convert all strings in parameters to lowercase. Another alias for this function is lcase.examplemysql> SELECT lower("AbC123");+-----------------+| lower('AbC123') |+-----------------+| abc123 |+-----------------+keywordsLOWER