| | |
| | | val double(25, 10) comment '值', |
| | | create_time datetime comment '值' |
| | | ); |
| | | -- drop table voc_vals; |
| | | create index voc_vals_val on voc_vals (val); |
| | | create index voc_vals_time on voc_vals (create_time); |
| | | ---------------------------------------------------------------------- |
| | | /* select a.*, date_format(create_time, '%Y%m%d%H') "time" from voc_vals a where date_format(create_time, '%Y%m%d%H') = '2023060514'; |
| | | create table voc_addr ( |
| | | id int not null auto_increment primary key comment '主键', |
| | | x int comment 'X', |
| | | y int comment 'Y', |
| | | addr varchar(50) comment '地址' |
| | | ); |
| | | ---------------------------------------------------------------------- |
| | | select a.*, date_format(create_time, '%Y%m%d%H') "time" from voc_vals a where date_format(create_time, '%Y%m%d%H') = '2023060514'; |
| | | select * from voc_vals where create_time < date_sub(now(), interval 1 year); |
| | | select date_sub(now(), interval 1 year) "time" from dual; |
| | | select count(*) from voc_vals; */ |
| | | |
| | | select * from voc_vals; |
| | | select * from voc_addr; |