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I am using SQLalchemy with pyodbc to connect to a SQL server. I can connect using "Windows Authentication":

create_engine('mssql+pyodbc://[ServerName]/[DatabaseName]',echo=True)

That is fine but when I try to login (SQL server authentication) it fails:

create_engine('mssql+pyodbc://[User]:{Password]@[ServerName]/[DatabaseName]',echo=True)
  1. Is my code correct? Am I missing a setting?
  2. Is there a way of listing database users to check the names?
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  • Please provide the error message received when using SQL Server auth, will give us a better idea of what is needed to resolve. Commented Jun 4, 2012 at 17:51

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  1. Yes, your connection string is correct. Make sure the user/pwd combinations are correct. Also note that user/pwd can only be used for users which use "SQL Server authentication" (in the code below SQL_LOGIN) and not "Windows authentication"
  2. Given you connect with enough permissions, you can execute the following to see all logins:
    for x in session.execute("SELECT name, type, type_desc FROM sys.server_principals"): print x
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