PYODBC--Data source name not found and no default driver specified

问题

import pyodbc
connection = pyodbc.connect('Driver = {SQL Server};Server=SIWSQL43A\SIMSSPROD43A;'
                            'Database=CSM_reporting;Trusted_Connection=yes;')

connection = pyodbc.connect('Driver = {SQL Server};Server=SIWSQL43A\SIMSSPROD43A;' pyodbc.Error: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')

回答1:

Do not put a space after the Driver keyword in the connection string.

This fails on Windows ...

conn_str = (
    r'DRIVER = {SQL Server};'
    r'SERVER=(local)\SQLEXPRESS;'
    r'DATABASE=myDb;'
    r'Trusted_Connection=yes;'
)
cnxn = pyodbc.connect(conn_str)

... but this works:

conn_str = (
    r'DRIVER={SQL Server};'
    r'SERVER=(local)\SQLEXPRESS;'
    r'DATABASE=myDb;'
    r'Trusted_Connection=yes;'
)
cnxn = pyodbc.connect(conn_str)

回答2:

I've met same problem and fixed it changing connection string like below. Write

'DRIVER={ODBC Driver 13 for SQL Server}'

instead of

'DRIVER={SQL Server}'

回答3:

You could try:

import pyodbc
# Using a DSN
cnxn = pyodbc.connect('DSN=odbc_datasource_name;UID=db_user_id;PWD=db_password')

Note: You will need to know the "odbc_datasource_name". In Windows you can search for ODBC Data Sources. The name will look something like this:

Data Source Name Example

回答4:

I faced this issue and was looking for the solution. Finally I was trying all the options from the https://github.com/mkleehammer/pyodbc/wiki/Connecting-to-SQL-Server-from-Windows , and for my MSSQL 12 only "{ODBC Driver 11 for SQL Server}" works. Just try it one by one. And the second important thing you have to get correct server name, because I thought preciously that I need to set \SQLEXPRESS in all of the cases, but found out that you have to set EXACTLY what you see in the server properties. Example on the screenshot:

回答5:

for error : pyodbc.InterfaceError: ('IM002', '[IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) (SQLDriverConnect)')

No space between the driver and event

connection = Driver={SQL Server Native Client 11.0}; "Server=servername;" "Database=dbname;" "Trusted_Connection=yes;"

回答6:

I'm using

Django 2.2

and got the same error while connecting to sql-server 2012. Spent lot of time to solve this issue and finally this worked.

I changed

'driver': 'ODBC Driver 13 for SQL Server'

'driver': 'SQL Server Native Client 11.0'

and it worked.

回答7:

Try below:

import pyodbc

server = 'servername'

database = 'DB'

username = 'UserName'

password = 'Password'

cnxn = pyodbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER='+server+';DATABASE='+database+';UID='+username+';PWD='+ password)

cursor = cnxn.cursor()


cursor.execute('SELECT * FROM Tbl')

for row in cursor:
    print('row = %r' % (row,))

回答8:

Below connection string is working

import pandas as pd
import pyodbc as odbc

sql_conn = odbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER=SERVER_NAME;DATABASE=DATABASE_NAME;UID=USERNAME;PWD=PASSWORD;')

query = "SELECT * FROM admin.TABLE_NAME"
df = pd.read_sql(query, sql_conn)
df.head()

来源：https://stackoverflow.com/questions/46045834/pyodbc-data-source-name-not-found-and-no-default-driver-specified

标签

python

sql

pyodbc