mysql - 根据select语句编写SQL删除

Question

如何进行以下查询并在一个查询中删除？

select krps.kpi_results_fk from report.kpi_results_per_scene krps inner join report.kpi_results kr on kr.session_uid = '0000c2af-1fc8-4729-bb2a-d4516a63107a' 
and kr.pk = krps.kpi_results_fk

delete from report.kpi_results_per_scene where kpi_results_fk = 'answer from above query'

Answer 1

我认为对于您的情况，不需要需要使用内部联接。

以下查询可以减少内连接的开销

DELETE FROM report.kpi_results_per_scene 
WHERE kpi_results_fk IN 
        (SELECT kr.pk FROM report.kpi_results kr 
            WHERE kr.session_uid = '0000c2af-1fc8-4729-bb2a-d4516a63107a')