MySQL触发根据另一个表的列总和更新字段

Question

我有两个表“调查”和“结果”

survey table
-----------------------------------------------
survey_id  | name  | p1q1 | p1q2 | p1q5  
-----------------------------------------------
1          | John  | 10   | 10   | 5 
-----------------------------------------------
2          | Erick | 12   | 15   | 23 
-----------------------------------------------

results table

id  | Uptake | PY5Q1 |
----------------------------
1   | AZT    | NULL  |
----------------------------
2   | UPDP   | NULL  |
----------------------------

我是触发器新手，正在尝试找出如何获取调查表中 p1q5 的总和并将其更新为 PY5Q1，其中结果表中 id = 1 任何想法将不胜感激

CREATE TRIGGER `results` AFTER INSERT ON `survey` FOR EACH ROW BEGIN
UPDATE results SET PY5Q1=(SELECT SUM(p1q5)) WHERE id=1;
END

Answer 1

CREATE TRIGGER `results` AFTER INSERT ON `survey` FOR EACH ROW
BEGIN
UPDATE results SET PY5Q1=(SELECT SUM(p1q5)FROM survey) WHERE id=1;
END