Sql server 多行到单行

如果给定多行数据，如何检索结果

结果基于执行的列。该条件以tserv_id“放电”开始，以“通电”结束

条件：

放电至通电（1排）

在最后1）ON POWER------------------ON POWER（1行）之间执行的任何操作

在最后2）ON POWER之间执行的任何操作------------------ON POWER（1行）

在最后3）通电------------------ONPOWEWR（1行）之间执行的任何操作

代码：

使用聚合：

select min(Case tserv_id when 'Discharge' then PERFORMED end) as tserv_discharge,
       min(Case tserv_id when 'ONPOWER' then PERFORMED end) as tserv_onpower,
       min(Case tserv_id when 'YARD2TRUCK' then PERFORMED end) as tserv_yard2truck,
       min(Case tserv_id when 'FULL OUT' then PERFORMED end) as tserv_fullout,
       min(Case tserv_id when 'FULL IN' then PERFORMED end) as tserv_fullin
from ODS_REEFER
where EQ_NBR = 'EGSU5014174';

使用聚合：

select min(Case tserv_id when 'Discharge' then PERFORMED end) as tserv_discharge,
       min(Case tserv_id when 'ONPOWER' then PERFORMED end) as tserv_onpower,
       min(Case tserv_id when 'YARD2TRUCK' then PERFORMED end) as tserv_yard2truck,
       min(Case tserv_id when 'FULL OUT' then PERFORMED end) as tserv_fullout,
       min(Case tserv_id when 'FULL IN' then PERFORMED end) as tserv_fullin
from ODS_REEFER
where EQ_NBR = 'EGSU5014174';