语法：INITCAP（列、字符串）

SCOTT@itkaifang> SELECT INITCAP(ename) AS new,ename FROM emp;
NEW             ENAME
---------- ----------
Smith           SMITH
Allen           ALLEN
Ward             WARD
Jones           JONES
Martin         MARTIN
Blake           BLAKE
Clark           CLARK
Scott           SCOTT
King             KING
Turner         TURNER
Adams           ADAMS
James           JAMES
Ford             FORD
Miller         MILLER
14 rows selected.
SCOTT@itkaifang>