wongzzh
字符串转日期
select to_date(birthday, \'yyyy-mm-dd\') from staff 

日期转字符串

select to_char(to_date(birthday, \'yyyy-mm-dd\'), \'yyyy"年"mm"月"dd"日"\') from staff 

先将oracle中时间字段转化成字段串,然后与字符串模糊查询

select * from  users where to_char( create_time,\'yyyy-MM-dd\')  like \'2020-08-30\'

  

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