输入为数字形式时如何获取文本输出

Question

如何获取以字符/字母形式输出的数字/数字？ 就像我输入：-1234 那么输出应该像：-一二三四与（在其他情况下）一个                              1,234。

Answer 1

尝试一下

select to_char(to_date(1234, 'j'), 'jsp') from dual

输出将是 1,234

Answer 2

执行以下功能。

            CREATE OR REPLACE FUNCTION NUMTOWORDS (P_IN IN NUMBER)
               RETURN VARCHAR2
            IS
               V_WORDS    VARCHAR2 (20) := '';
               V_CHAR     VARCHAR2 (20) := '';
               V_LENGTH   NUMBER;

               TYPE ARRAY_TYPE IS VARRAY (10) OF VARCHAR2 (10);
               V_ARRAY    ARRAY_TYPE := ARRAY_TYPE ('ZERO', 'ONE', 'TWO', 'THREE', 'FOUR', 'FIVE', 'SIX', 'SEVEN', 'EIGHT', 'NINE');
            BEGIN
               SELECT   LENGTH (TO_CHAR (P_IN)) INTO V_LENGTH FROM DUAL;

               FOR I IN 1 .. V_LENGTH
               LOOP
                  V_CHAR := V_ARRAY ( (TO_NUMBER (SUBSTR (TO_CHAR (P_IN), I, 1)) + 1));
                  V_WORDS := CONCAT (V_WORDS, CONCAT (V_CHAR, ' '));
               END LOOP;

               RETURN TRIM (V_WORDS);
            END;

“”“从DUAL中选择NUMTOWORDS（674）;