删除后MySQL触发器存储数据

Question

我尝试构建一个mysql触发器，该触发器应首先删除行，然后根据where子句将数据存储到trans_heim表中。但是我的触发器不会在表中保存任何数据。当我在底部运行查询时，数据存储在表中。

这是我的触发器...

CREATE TRIGGER heim_ID_trans_insert AFTER INSERT on resultate
FOR EACH ROW

SET @heimteam := (Select Heimteam from resultate where ID = new.ID);


DELETE FROM heim_trans where Heimteam = @heimteam;

Insert into heim_trans(ID_trans, Spieltag, Heimteam, ID) 
Select a11.ID_Final, a11.Spieltag, a11.Heimteam,a11.ID from
(
SELECT     
     CASE
        WHEN @Heimteam = Heimteam THEN @ID_before
        ELSE NULL
    END AS ID_Final,
    Spieltag,
    @Heimteam:=Heimteam as Heimteam,
    @ID_before:=ID as ID
FROM
    resultate
ORDER BY Heimteam, Spieltag 
) as a11
  join
 (
Select ID from resultate 
)as a12 
on a11.ID = a12.ID where a11.Heimteam = @heimteam;
;