python - SQL在python中比较日期

Question

我需要将用户输入日期kakko（yyyy-mm-dd 格式）与表 productinfo 中的 CreateDate 和 UpdateDate 进行比较并返回结果。

这不起作用。

cur.execute("SELECT * FROM `productinfo` WHERE CreateDate > %s-%s-%s AND CreateDate <= (SELECT MAX( UpdateDate ) FROM productinfo) AND Updatedate = (SELECT MAX( UpdateDate ) FROM productinfo) ",kakko)
db.commit()

Answer 1

试试下面的代码

sql ='SELECT 
    *
    FROM
        productinfo
    WHERE
        CreateDate > ? AND CreateDate <= (SELECT 
                MAX(UpdateDate)
            FROM
                productinfo) AND Updatedate = (SELECT 
                MAX(UpdateDate)
            FROM
                productinfo)';
cur.execute(sql,kakko)
db.commit

Answer 2

cur.execute("SELECT * FROM `productinfo` WHERE CreateDate > '%s'" %(kakko,))
result = cur.fetchall()

works!