[英]How can I initialize and increment an undefined value within a list in Python 3?
[英]How can I increment query value in python?
self.mycursor = self.mydb.cursor()
self.sql1 = "UPDATE counter SET count = %s WHERE id = %s"
self.val1 = (str(int('count' + 1)), '1')
self.mycursor.execute(self.sql1, self.val1)
self.mydb.commit()
在这部分代码中,我想增加查询值
如果您想为给定的 id 将计数器加 1,您可以执行以下操作:
self.sql1 = "UPDATE counter SET count = count + 1 WHERE id = %s"
self.val1 = (1)
self.mycursor.execute(self.sql1, self.val1)
您的问题不清楚,我假设您想增加给定 id 的计数值:
self.mycursor = self.mydb.cursor()
self.sql1 = "UPDATE counter SET count = count + 1 WHERE id = %s"
self.mycursor.execute(self.sql1, self.val1)
self.mydb.commit()
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