日期与时间函数

• CONVERT_TZ()
• CURDATE()
• CURRENT_TIMESTAMP()
• DATE()
• DATE_ADD()
• DATE_FORMAT()
• DATE_SUB()
• DATEDIFF()
• DAY()
• DAYOFYEAR()
• EXTRACT()
• HOUR()
• FROM_UNIXTIME
• MINUTE()
• MONTH()
• NOW()
• SECOND()
• STR_TO_DATE()
• SYSDATE()
• TIME()
• TIMEDIFF()
• TIMESTAMP()
• TIMESTAMPDIFF()
• TO_DATE()
• TO_DAYS()
• TO_SECONDS()
• UNIX_TIMESTAMP
• UTC_TIMESTAMP()
• WEEK()
• WEEKDAY()
• YEAR()