Python – pyodbc- connection failure to SQL Server

odbcpyodbcpythonsql serverwindows 7

I have been trying to connect to Microsoft SQL Server. I have an ODBC connection set up and the test is successful. I am not using Windows Authentication to connect to SQL Server but it keep getting this error:

Cannot be used with Windows authentication

InterfaceError: ('28000', '[28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. (18452) (SQLDriverConnect); [28000] [Microsoft][ODBC SQL Server Driver]Invalid connection string attribute (0); [28000] [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed. The login is from an untrusted domain and cannot be used with Windows authentication. (18452); [28000] [Microsoft][ODBC SQL Server Driver]Invalid connection string attribute (0)')

Here is my code:

import pyodbc
cnxn = pyodbc.connect(Driver='{SQL Server}',
                      Server='servername.abc.xyz.co.com',
                      username = 'user_xyz', 
                      password = 'abcdfgh')

I am using Windows 7. Please help me debug this problem

Thanks

Best Answer

I was able to solve this by defining the dsn connection as below:

dsn="DRIVER={SQL 
SERVER};server=ip_address_here;database=db_name_here;uid=user;pwd=password"

This worked and I was able to connect and query the sql server.

Related Solutions

Sql – Add a column with a default value to an existing table in SQL Server

Syntax:

ALTER TABLE {TABLENAME} 
ADD {COLUMNNAME} {TYPE} {NULL|NOT NULL} 
CONSTRAINT {CONSTRAINT_NAME} DEFAULT {DEFAULT_VALUE}
WITH VALUES

Example:

ALTER TABLE SomeTable
        ADD SomeCol Bit NULL --Or NOT NULL.
 CONSTRAINT D_SomeTable_SomeCol --When Omitted a Default-Constraint Name is autogenerated.
    DEFAULT (0)--Optional Default-Constraint.
WITH VALUES --Add if Column is Nullable and you want the Default Value for Existing Records.

Notes:

Optional Constraint Name:
If you leave out CONSTRAINT D_SomeTable_SomeCol then SQL Server will autogenerate
a Default-Contraint with a funny Name like: DF__SomeTa__SomeC__4FB7FEF6

Optional With-Values Statement:
The WITH VALUES is only needed when your Column is Nullable
and you want the Default Value used for Existing Records.
If your Column is NOT NULL, then it will automatically use the Default Value
for all Existing Records, whether you specify WITH VALUES or not.

How Inserts work with a Default-Constraint:
If you insert a Record into SomeTable and do not Specify SomeCol's value, then it will Default to 0.
If you insert a Record and Specify SomeCol's value as NULL (and your column allows nulls),
then the Default-Constraint will not be used and NULL will be inserted as the Value.

Notes were based on everyone's great feedback below.
Special Thanks to:
@Yatrix, @WalterStabosz, @YahooSerious, and @StackMan for their Comments.

Sql-server – SQL Server 2008 Windows Auth Login Error: The login is from an untrusted domain

Another reason this might happen (just happened to me) ... is the user's password expires. I didn't realize this until I tried to remote into the actual server and was prompted to change my password.

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