mysql - 将a列值更新为与python中特定id对应的b列

Question

我编写了一个代码，使用 pymysql 从 mysql 数据库读取 2 列(raw_id、注释)，它给了我字典列表。现在我想提取 id 值，存储它并使用记录级别的每个 raw_id 的注释列值更新评论列。谁能帮我解决这个问题吗？

db_data 包含:

[OrderedDict([(u'raw_id', u'52c00'), (u'notes', u'awesome')]), 
OrderedDict([(u'raw_id', u'54df0'), (u'notes', u'loved it')]),
OrderedDict([(u'raw_id', u'5cd00'), (u'notes', u'enjoyed')]),...]

我使用过的代码:

for row in db_data:
    text = row.values()
    r_id = text[0]
    update_sql = "update raw_data set review = notes where 
    customer_id = {0} and raw_id = {1}"
    res = sql_db.execute_write(update_sql, [inp_cust_id, r_id])
    print res

我遇到的错误:

TypeError: not all arguments converted during string formatting

Answer 1

for row in db_data:
    text = str(row.values())
    r_id = str(text[0])
    update_sql = "update raw_data set review = notes where 
    customer_id = {0} and raw_id = {1}"
    res = sql_db.execute_write(update_sql, [inp_cust_id, r_id])
    print res

试试这个