sql时间格式

• create_date 格式为date

可行sql：

1. select * from bus_task_order t where t.create_date>sysdate
2. select * from bus_task_order t where t.create_date=to_date('2017-11-8 11:13:28','yyyy-MM-dd hh24:mi:ss')

• exe_date 格式为varchar2

可行sql：

1. select * from   danage_action_task  tt where tt.exe_time>to_char(sysdate, 'yyyy-mm-dd hh24:mi:ss')
2. select * from   danage_action_task  tt where tt.exe_time>to_char(trunc(sysdate), 'yyyy-mm-dd hh24:mi:ss')
3. select * from   danage_action_task  tt where tt.exe_time>'2017-11-08 11:13:28'  varchar2格式时天不带0是错的

select sysdate from dual  ->2017-11-8 11:13:28

select trunc(sysdate) from dual; ->2017-11-8

select to_char(sysdate,'yyyy-mm-dd hh24:mi:ss') from dual;->2017-11-08 14:42:28