Question

我目前在使用前一个答案中使用的python编码的微小变体将csv文件导入sql时遇到问题： - Insert csv into sql database

我遇到了一个问题，我收到以下语法错误： -

line 28, in insert_records
cursor.execute(insert +'('+ ', '.join(values) +');')
pyodbc.ProgrammingError: ('42000', "[42000] [Microsoft][ODBC Driver 13 for 
SQL Server][SQL Server]Incorrect syntax near '/'. (102) (SQLExecDirectW)")

我相信我已经接近成功将此csv文件导入sql server。目前sql server标题中的表已经存在。我附加了我正在使用的python代码，程序终止于[cursor.execute（insert +'（'+'，'。join（values）+'）;'）]

提前致谢，布赖恩

import pyodbc
import csv
print('connecting')

conn = pyodbc.connect(r'DRIVER={ODBC Driver 13 for SQL Server};'r'SERVER=.\SQLExpress;'r'DATABASE=UFOGBobservations;'r'Trusted_Connection=yes')
print('Connected')
my_cursor = conn.cursor()
print('Cursor established')

def insert_records(table, yourcsv, cursor, cnxn):
    #INSERT SOURCE RECORDS TO DESTINATION
    with open(yourcsv) as csvfile:
        csvFile = csv.reader(csvfile, delimiter=',')
        header = next(csvFile)
        headers = map((lambda x: x.strip()), header)
        insert = 'INSERT INTO {} ('.format(table) + ', '.join(headers) + ') VALUES '
        for row in csvFile:
            values = map((lambda x: "'"+x.strip()+"'"), row)
            cursor.execute(insert +'('+ ', '.join(values) +');')
            conn.commit() #must commit unless your sql database auto-commits

table = 'table_1'
mycsv = r'C:\DataAnalystData\UFOGB_Observations.csv' # SET YOUR FILEPATH
insert_records(table, mycsv, my_cursor, conn)
cursor.close()

Answer 1

这可能是一个逃避问题。如果将值作为参数列表传递给execute()而不是手动构建字符串，则会更安全。这将确保它们被正确转义。

insert = 'INSERT INTO {} ('.format(table) + ', '.join(headers) + ') VALUES ({})' \
    .format(', '.join(len(headers) * '?'))  # Add parameter placeholders as ?

for row in csvFile:
    values = map((lambda x: x.strip()), row)  # No need for the quotes
    cursor.execute(insert, values)  # Pass the list of values as 2nd argument
    conn.commit()

使用python将csv文件导入sql server

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