CEIL函数将指定的数字向上取整，并返回大于或等于指定数字的最小数字。

CEIL功能示例

SELECT CEIL(1.2) FROM DUAL;        -- output : 2SELECT CEIL(1.5) FROM DUAL;        -- output : 2SELECT CEIL(1.7) FROM DUAL;        -- output : 2SELECT CEIL(1.99) FROM DUAL;       -- output : 2SELECT CEIL(-1.2) FROM DUAL;       -- output : -1SELECT CEIL(-1.5) FROM DUAL;      -- output : -1SELECT CEIL(-1.7) FROM DUAL;      -- output : -1SELECT CEIL(-1.99) FROM DUAL;         -- output : -1SELECT CEIL(15.1) FROM DUAL;      -- output : 16SELECT CEIL(99.001) FROM DUAL;        -- output : 100SELECT CEIL(-1.5) FROM DUAL;     -- output : -1SELECT CEIL(-0.9) FROM DUAL;      -- output : 0

参考文献

1. CEIL功能：-Oracle官方文档

翻译自: https://mkyong.com/oracle/oracle-plsql-ceil-function/