我正在尝试从另一表(serviceppl)更新MySQL中一个表(csms)中的值。我已经附加了我编写的查询和两个表,但是查询不起作用。它不会产生任何错误,但是记录不会更新。救命!
query = "select*from csms where feedback in('null', 'I expect a better one', 'Bad one! Need one again')"
mycursor.execute(query)
p = mycursor.fetchall()
for i in p:
query_upserv = """update csms inner join serviceppl on csms.product = serviceppl.speciality
set serviceppl.name = csms.serviceman where csms.product = '{}'""".format(i[4])
mycursor.execute(query_upserv)
mycon.commit()
答案 0 :(得分:0)
如果要更新表serviceman
的列csms
,则必须修复SET
子句:
set csms.serviceman = serviceppl.name