ClickHouse

下面2句话，上一句话可以看看将要删除的数据，下一句话直接删除这些数据。

sql
select * from cl_grid_fwi_forecast_hourly_data cgffhd  where update_time  = '2021-10-28 22:00:00';
ALTER  table cl_grid_fwi_forecast_hourly_data delete  where update_time  = '2021-10-28 22:00:00';

Mysql

sql
DELETE FROM forest_fire_chongli.alg_national_fire_risk_current_hourly_data where data_time='2021-12-23 00:00:00';