/*转大写*/ SELECT UPPER(TITLE_EN) FROM ME_EO WHERE ( ISSUE_DATE BETWEEN to_date( '2017-02-04', 'yyyy-MM-DD' ) AND to_date( '2017-02-09', 'yyyy-MM-DD' ) ) ) ORDER BY ATA ASC ; 效果如下: /*转小写*/ SELECT LOWER(TITLE_EN) FROM ME_EO WHERE ( ISSUE_DATE BETWEEN to_…