I have a sqlite database with a table with following columns :
id(int) , name(text) , dob(text)
I want to insert following dictionary to it :
{"id":"100","name":"xyz","dob":"12/12/12"}
Dictionary keys are the column names. How can i achieve it ?
Looking at the documentation here you can add a single row:
c.execute("INSERT INTO stocks VALUES (?,?,?)", [dict["id"], dict["name"], dict["dob"]])
Or you can use a list and add multiple rows in one go:
# Larger example that inserts many records at a time
purchases = [('2006-03-28', 'BUY', 'IBM', 1000, 45.00),
('2006-04-05', 'BUY', 'MSFT', 1000, 72.00),
('2006-04-06', 'SELL', 'IBM', 500, 53.00),
]
c.executemany('INSERT INTO stocks VALUES (?,?,?,?,?)', purchases)
Here's a way which preserves parameter safety. (Might need polishing in the tablename department)
def post_row(conn, tablename, rec):
keys = ','.join(rec.keys())
question_marks = ','.join(list('?'*len(rec)))
values = tuple(rec.values())
conn.execute('INSERT INTO '+tablename+' ('+keys+') VALUES ('+question_marks+')', values)
row = {"id":"100","name":"xyz","dob":"12/12/12"}
post_row(my_db, 'my_table', row)
If, for example, c = conn.cursor()
, and your dictionary is named dict
and your table tablename
, then you can write
c.execute('insert into tablename values (?,?,?)', [dict['id'], dict['name'], dict['dob']])
Which will insert the elements of the dictionary into the table as you require.
To use dictionaries directly you can do:
user1 = {"id":100, "name": "Rumpelstiltskin", "dob": "12/12/12"}
c.execute("INSERT INTO users VALUES (:id, :name, :dob)", user1)
Using along with instances/models:
class User:
def __init__(self, name, dob):
self.name = name
self.dob = dao
u1 = User("Rumpelstiltskin", "12/12/12")
c.execute("INSERT INTO users VALUES (:name, :dob)", u1.__dict__)
id is a keyword in Python, so if you want to use it as an identifier of an instance variable I would recommend using _id (and the same as your table's primary key name).
根据 Gareth 的回复,如果您使用MySQLdb
您可以使用executemany
并传递一个值列表,您可以使用executemany
dict.values()
直接从您的dict
获取这些值
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