前面，兩篇分别介紹了，MySQL的字符串函數和數值函數，接下來，一起學習下日期函數，走起[奸笑]

上圖

1.NOW()獲取當前時間

SQL語句：SELECT NOW() as temporary_time

2.YEAR()獲取當前年份

SQL語句：SELECT YEAR(NOW()) as temporary_time

3.MONTH()獲取當前月份

SQL語句：SELECT MONTH(NOW()) as temporary_time

4.WEEK()獲取當前是今年的第幾周

SQL語句：SELECT WEEK(NOW()) as temporary_time

5.DAY()獲取本月幾号

SQL語句：SELECT DAY(NOW()) as temporary_time

6.HOUR()獲取當前小時

SQL語句：SELECT HOUR(NOW()) as temporary_time

7.MINUTE()獲取當前分鐘

SQL語句：SELECT MINUTE(NOW()) as temporary_time

8.MONTHNAME()返回英文月份

SQL語句：SELECT MONTHNAME(NOW()) as temporary_time

9.CURDATE()返回當前日期，隻包含年月日

SQL語句：SELECT CURDATE() as temporary_time

10.CURTIME() 返回當前時間，隻包含時分秒

SQL語句：SELECT CURTIME() as temporary_time

11.UNIX_TIMESTAMP()返回時間戳

SQL語句：SELECT UNIX_TIMESTAMP(NOW()) as temporary_time

12.FROM_UNIXTIME()返回對應時間戳的日期值

SQL語句：SELECT FROM_UNIXTIME(1612166213) as temporary_time

13.DATE_FORMAT(date,format)格式化 日期函數

SQL語句：SELECT DATE_FORMAT(NOW(),'%Y-%m-%d') as temporary_time

14. DATEDIFF(x,y) 計算日期相差多少天,y-x

SQL語句：SELECT DATEDIFF('1995-11-06','1994-09-22') as temporary_time

收工[鼓掌]

年前最後一更[奸笑]

新年快樂！

祝各位：新的一年，恭喜發财，萬事如意[撒花]

來年我們一起努力！