Python Pyodbc Binary Column返回\\ xda \\ x08 \\ xcd \\ x08 \\ xba \\ x08而不是数字

Question

I have a SQL database that displays a varbinary (max) like this 0x9406920691068F... I want to import it to python pycharm to get the same exact type of data. However, it shows something like this instead [b'\\x94\\x06\\x92\\x06\\x91\\x06\\x8f\\x06\\x8d.. how do I copy the same numbers to python? I am a beginner in python, please help.

I copied the code from previous post and it didn't work

import pyodbc

    def hexToString(binaryString):
    try:
      hashString = ["{0:0>2}".format(hex(b)[2:].upper()) for b in binaryString]
      return '0x' + "".join(hashString)
    except:
      return binaryString


    query = """ select P from Access.table """

conn_str = (
      **** private database details # I don't copy on the page
    )

cnxn = pyodbc.connect(conn_str)
cnxn.add_output_converter(pyodbc.SQL_BINARY, hexToString)
cursor = cnxn.cursor()

try:
    cursor.execute(query)
    row = cursor.fetchone()
except MySQLdb.error as err:
    print(err)
else:
    while row is not None:
        print(row)
        row = cursor.fetchone()

Answer 1

如果列返回类型为varbinary(max)则需要添加输出转换器函数来处理SQL_VARBINARY ，而不是SQL_BINARY

cnxn.add_output_converter(pyodbc.SQL_VARBINARY, converter_function_name)