1.取整(大) select ceil(-1.001) value from dual
2.取整(小) select floor(-1.001) value from dual
3.取整(截取) select trunc(-1.002) value from dual
4.取整(舍入) select round(-1.001) value from dual
摘自:http://www.cnblogs.com/ShineTan/archive/2008/01/29/1056986.html
1.取整(大) select ceil(-1.001) value from dual
2.取整(小) select floor(-1.001) value from dual
3.取整(截取) select trunc(-1.002) value from dual
4.取整(舍入) select round(-1.001) value from dual
摘自:http://www.cnblogs.com/ShineTan/archive/2008/01/29/1056986.html