Develop Reference

How to add SUPER priviledge to MySQL in pythonanywhere?

I am using PythonAnywhere to host my web application for testing purpose. My frontend and python script is working fine. Now I want to connect it to MySQL database. I have uploaded my .sql file to the mysite folder and trying to restore it using this syntax:
mysql -u username -h username.mysql.pythonanywhere-services.com 'username$scm' < ab.sql
as told in Backing up (and restoring) MySQL databases (where username=created username) but it's throwing this error:
ERROR 1419 (HY000) at line 88: You do not have the SUPER privilege and binary logging is enabled (you *might* want to use the less safe log_bin_
trust_function_creators variable)
I've tried to fix this error by following this How to grant super privilege to the user? but still it's throwing error:
ERROR 1044 (42000): Access denied for user 'username'#'%' to database 'username$scm'
Please help me out.

Take a look at the answer on PythonAnywhere forums:
You would not be able to get super privileges on MySQL (only
postgres). Could you disable binary logging before doing the restore?
You could either try to edit the ab.sql file to take out that line, or
turn it off from wherever you were creating the sqldump originally,
and doing the sqldump again.

mssql python Connection

I am using Pycharm and try to link to a mssql server. When I link to a server that requires SQL authentication, the connect is created successfully. However, when I try to link to a server that requires my Windows Authentication, even though I use my username or password of windows log in, I cannot connect successfully. May I know what should be a proper way to setup if it is windows authentication.
I am using the below code:
import pymssql
conn=pymssql.connect(host="10.xx.xx.xx",user="CORPORATE/mywindowsloginname",password="mypassword",database="BIC_reference")
cur=conn.cursor()y
cur.execute('SELECT top 10 * FROM dbo.hi_invoiceline')
print (cur.fetchall())

in order to use Windows Authentication you have to add the property trusted_connection='yes' to your connection string. In this case you can omit user and password:
conn=pymssql.connect(host="10.xx.xx.xx",database="BIC_reference",trusted_connection='yes')

When using Windows Authentication, you should not specify any user credentials. The following should work assuming your Windows account has the relevant permissions:
conn=pymssql.connect(host="10.xx.xx.xx",database="BIC_reference")
I have tested this using pymssql-2.1.3. Using this version there was no need to specify trusted_connection='yes' (see apomene's answer), however, you may want to try that as well in case the above snippet doesn't work.

Oracle incorrectly looking in TNS Names: TNS:could not resolve the connect identifier specified

I'm trying to make a connection to an oracle database with cx_Oracle but am getting the following error message:
ORA-12154: TNS:could not resolve the connect identifier specified
I'm using a connection string such as this one:
'xxxx/pw#lonod-com:1221/LNOUND_USER.uk.something.com'
The connection string is definitely correct as it is working from a different computer on the same network. I can also connect to the database when using Oracle SQL Developer, it's simply not working from Python.
I suspect that for some reason it keeps looking for a TNS Name entry, which I am not using. Is there a flag somewhere that could cause cx_Oracle to keep looking for a TNS name entry or what else could be causing this problem?

I have seen this occur if you have a sqlnet.ora configuration file that does not include the EZCONNECT option in the names.directory_path configuration variable. Below are a few ways to check what you are using. You can also test this connection string with SQL*Plus -- if it works with SQL*Plus it will work with cx_Oracle as well.
1) If you have the environment variable TNS_ADMIN set, its value indicates where Oracle searches for configuration files. If not and you have a full Oracle client installed it will look inside $ORACLE_HOME/network/admin
2) If you have a full Oracle client installed you can also use the tnsping utility to determine what Oracle is using and from what configuration files it is reading.
3) If you have a sqlnet.ora file in the location Oracle is searching for configuration files, then look for the names.directory_path= line in the file. If it is found, it needs to look something like this:
names.directory_path = (TNSNAMES, EZCONNECT)
Hope that helps!

Client-side pyodbc error: "Server does not exist or access denied."

I have a python application designed to pull data from a remote database server using pyodbc, then organize and display the data in a spreadsheet. I've had it working fine for several months now, with multiple coworkers in my department using it through a shared network folder.
My connection:
pyodbc.connect('DRIVER={SQL Server};
SERVER=<myServer_name>;
DATABASE=<myDB_name>;
UID=personsUser;
PWD=personsPassword')
A different employee within our same network recently tried to use the program and got this error:
pyodbc.Error: ('08001','[08001][Microsoft][ODBC SQL Server Driver]
[DBNETLIB]SQL Server does not exist or access denied. (17) (SQLDriverConnect)')
It looked like a simple permissions issue to me, so to confirm I replaced the userID and password with my own hardcoded in, but it gave the same error. Furthermore the same employee can log in and execute queries through SQL Server Management Studio without issue.
Since everyone else in our department can still use the application fine, I know it must be a client-side issue, but I just can't pinpoint the problem. Any input would be greatly appreciated, Thanks!
Updates:
Per flipperPA's answer below, I updated my connection string to include the port:
con = pyodbc.connect('''DRIVER={SQL Server};
SERVER=<myServer_name>;
PORT=1433;
DATABASE=<myDB_name>;
UID=personsUser;
PWD=personsPassword;''')
Unfortunately we still got the same error.
He is running 32-bit Windows 7 on an HP machine, the same setup as the rest of the group so it shouldn't to be an os-level issue.
He does operate SSMS on the same machine, but I ran through the telnet check just be sure - no issue there.
I've taught myself the pyodbc API and basic SQL, but I'm still relatively new to the underlying concepts of databases and remote connections. Could you explain the TDS driver a little more?

When including SERVER, I've found you often need to include the PORT as well; this is the most likely problem:
pyodbc.connect('DRIVER={SQL Server};
SERVER=<myServer_name>;
PORT=1433;
DATABASE=<myDB_name>;
UID=personsUser;
PWD=personsPassword')
I connect mostly from Linux, however. Could it be the other person is connecting from Mac OS/X or Linux? If so, they'll need to use the FreeTDS driver (MS provides one as well, but it is flaky, at best). If you continue to have problems, from the coworkers machine, make sure you can connect from the machine you're having issues with (unless its the same machine they can connect SSMS from):
telnet <myServer_name> 1433
If it connects, you're good, if it hangs on connecting, you're most likely looking at a firewall issue. Good luck!

After talking with a knowledgeable friend I was finally able to figure out my issue!
For some reason, the user's system was configured to connect using named pipes, but the server I was connecting to only had TCP/IP protocol enabled. The solution was to force the application to use TCP/IP by adding "tcp:" to the front of the server name.
The fixed connection string:
pyodbc.connect('''DRIVER={SQL Server};
SERVER=tcp:<myServer_name>;
PORT=1433;
DATABASE=<myDB_name>;
UID=personsUser;
PWD=personsPassword
''')

If for any of you still doesn't work you can try to refer the Localdb (if that's the case) by its pipe address.
If the DB name is LocalDBA, in cmd type
SqlLocalDB LocalDBA v
Get the instance pipe name and then put it on the server name:
conn_str = (
r'DRIVER={SQL Server};'
r'SERVER=np:\\.\pipe\LOCALDB#ECE5B7EE\tsql\query;'
r'PORT=1433;'
r'DATABASE=VT-DE;'
r'trusted_connection=yes;'
)

Connect to a Sybase database in Python without a DSN?

I'm trying to connect to a Sybase database in Python (using the python-sybase DBAPI and sqlalchemy module), and I'm currently receiving the following error:
ct_connect(): directory service layer: internal directory control layer error: There was an error encountered while binding to the directory service
Here's the code:
import sqlalchemy
connect_url = sqlalchemy.engine.url.URL(drivername='pysybase', username='read_only', password='*****', host='hostname', port=9000, database='tablename', query=None)
db = sqlalchemy.create_engine(connect_url)
connection = db.connect()
I've also tried to connect without sqlalchemy - ie, just importing the Python Sybase module directly and attempting to connect, but I still get the same error.
I've done quite a bit of googling and searching here on SO and at the doc sites for each of the packages I'm using. One common suggestion was to verify the DSN settings, as that's what's causing ct_connect() to trip up, but I am able to connect to and view the database in my locally-installed copy of DBArtisan just fine, and I believe that uses the same DSN.
Perhaps I should attempt to connect in a way without a DSN? Or is there something else I'm missing here?
Any ideas or feedback are much appreciated, thank you!

I figured out the issue for anyone else who might be having a similar problem.
Apparently, even though I had valid entries for the hostname in my sql.ini file and DSN table, Sybase was not reading it correctly - I had to open DSEdit (one of the tools that comes with Sybase) and re-enter the server/hostname info.