一、mysql的數據類型mysql
CREATE table zsw.testBit(id BIT(8));
insert into zsw.testbit values(121),(b'11');.sql
b'11':二進制數據11;學習
select bin(id+0) from zsw.testbit;spa
查詢二進制格式數據顯示it
二、日期類型io
2-一、TIMESTAMPtable
1.4個字節儲存(Time stamp value is stored in 4 bytes)test
2.值以UTC格式保存( it stores the number of milliseconds)date
3.時區轉化 ,存儲時對當前的時區進行轉換,檢索時再轉換回當前的時區。select
2-二、datetime
1.8個字節儲存(8 bytes storage)
2.實際格式儲存(Just stores what you have stored and retrieves the same thing which you have stored.)
3.與時區無關(It has nothing to deal with the TIMEZONE and Conversion.)