[英]How to insert into a table with character['] in the field (pymssql)
我正在尝试使用python从csv文件填充我的数据库。 下面是我用来填充sales
表的代码:
import csv
import pymssql as psql
conn = psql.connect('localhost:8888', 'SA', 'superSecret','videogame')
cursor = conn.cursor()
cursor.execute("""
IF OBJECT_ID('sales', 'U') IS NOT NULL
DROP TABLE sales
CREATE TABLE sales
(
Id int,
Name varchar(250),
Platform varchar(250),
Year int,
Genre varchar(250),
Publisher varchar(250),
NA_Sales float,
EU_Sales float,
JP_Sales float,
Other_Sales float,
Global_Sales float
)
""")
conn.commit()
with open ('./sales.csv', 'r') as f:
reader = csv.reader(f)
for row in reader:
row[1] = row[1].replace("'", "")
row[5] = row[5].replace("'", "")
data = tuple(row)
query = 'insert into sales values {0}'.format(data).replace("N/A","0")
print(query)
cursor.execute(query)
conn.commit()
conn.close()
但是,我的一些数据在其名称栏中包含字符:(')(例如刺客的信条)。 这导致错误,如下所示:
insert into sales values ('129', "Assassin's Creed III", 'PS3', '2012', 'Action', 'Ubisoft', '2.64', '2.56', '0.16', '1.14', '6.5')
Traceback (most recent call last):
File "pymssql.pyx", line 447, in pymssql.Cursor.execute (pymssql.c:7119)
File "_mssql.pyx", line 1011, in _mssql.MSSQLConnection.execute_query (_mssql.c:11586)
File "_mssql.pyx", line 1042, in _mssql.MSSQLConnection.execute_query (_mssql.c:11466)
File "_mssql.pyx", line 1175, in _mssql.MSSQLConnection.format_and_run_query (_mssql.c:12746)
File "_mssql.pyx", line 1586, in _mssql.check_cancel_and_raise (_mssql.c:16880)
File "_mssql.pyx", line 1630, in _mssql.maybe_raise_MSSQLDatabaseException (_mssql.c:17524)
_mssql.MSSQLDatabaseException: (207, b"Invalid column name 'Assassin's Creed III'.DB-Lib error message 20018, severity 16:\nGeneral SQL Server error: Check messages from the SQL Server\n")
除了手动更新行之外,还有其他解决方法吗(例如row[1] = row[1].replace("'","")
?
谢谢!!
您可以使用正确的参数化查询 ,如下所示:
row = ["Assassin's", "N/A", 9] # test data as list (e.g., from CSV)
data = tuple("0" if x=="N/A" else x for x in row)
print(data) # ("Assassin's", '0', 9)
placeholders = ','.join(['%s' for i in range(len(data))])
query = 'INSERT INTO sales VALUES ({0})'.format(placeholders)
print(query) # INSERT INTO sales VALUES (%s,%s,%s)
cursor.execute(query, data)
您可以替换'
with a \\'
,这应该可以阻止它崩溃,同时保留数据中的撇号:
with open ('./sales.csv', 'r') as f:
reader = csv.reader(f)
for row in reader:
row[1] = row[1].replace("'", "\'")
row[5] = row[5].replace("'", "\'")
data = tuple(row)
query = 'insert into sales values {0}'.format(data).replace("N/A","0")
print(query)
cursor.execute(query)
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