mysql时间函数总结_MySQL

select UNIX_TIMESTAMP();

select name,birth,year(curdate())-year(birth())-(right(curdate(),5)-right(birth,5)) as age from peg oreder by name;

| name | birth | CURDATE() | age |

| Bowser | 1989-08-31 | 2003-08-19 | 13 |

| Buffy | 1989-05-13 | 2003-08-19 | 14 |

| Chirpy | 1998-09-11 | 2003-08-19 | 4 |

| Claws | 1994-03-17 | 2003-08-19 | 9 |

| Fang | 1990-08-27 | 2003-08-19 | 12 |

| Fluffy | 1993-02-04 | 2003-08-19 | 10 |

| Puffball | 1999-03-30 | 2003-08-19 | 4 |

| Slim | 1996-04-29 | 2003-08-19 | 7 |

| Whistler | 1997-12-09 | 2003-08-19 | 5 |

3.如果要算出下个月出生的动物该sql语句如下。

语句一：

SELECT name, birth FROM pet WHERE MONTH(birth) = MONTH(DATE_ADD(CURDATE(),INTERVAL 1 MONTH));

语句二：

select name,birth from pet where month(birth)=mod(month(curdate(),12)+1;

为什么这样写是因为12月份特殊如果直接给它加上1的，那么就变成了13，所以这样处理。