我想问如何获取列的值并更新到具有相同ID的另一列中。这些数据来自电子邮件管道，我想分离正文的值并更新到费用，净额和总额字段中。
我不知道该怎么做..我希望你能帮助我..谢谢
这是我的桌子
+------+---------+--------------------+---------+----------+-------+----------+
| id | subject | body | expense | net | gross | email |
+------+---------+--------------------+---------+----------+-------+----------+
| 1 | Sales | Expense = 2000 | 0 | 0 | 0 | ex@ex.com|
| | | netIncome = 5000 | | | | |
| | | Gross = 10000 | | | | |
+------+---------+--------------------+---------+----------+-------+----------+
尝试这样的事情：
UPDATE table_name SET expense = LEFT(body, LOCATE("netIncome",body))