Hello all. I have the same problem with db2 for as400, seems to be very different from db2 in windows, linux.
Here is what I have found: this string dont apply for as400 as documented: ibm_db_sa://user:pass@server:port/database because when you connect to an as400 there is only one database with a bunch of schems. It should be: ibm_db_sa+pyodbc://user:password@ server:446/*local *local are the equivalent to a database. Now the problem is that you need a license to connect to the server or you will get: SQL1598N Ha fallado un intento de conectar con el servidor de bases de datos debido a un problema de licencia. The text is in spanish but says: buy a license to connect to the server. On Friday, February 12, 2016 at 8:58:39 AM UTC-6, Alex Hall wrote: > > Thanks so much for your reply--this really helps! I asked the people > at work, and was told that my machine does, in fact, have some sort of > IBM manager installed. (Can you tell I'm new to this technology and > this job?) Using it, I was able to create a DSN to the test database > and, it seems, connect. I'm getting an error when I call > > dbInspector = inspect(dbEngine) > > but at least I'm getting that far. I'll ask about the error in a > separate thread, since more people are likely to have run across that > than seem to have experience with the 400 and IBM's wrapper. > > On 2/12/16, Michal Petrucha <michal....@koniiiik.org <javascript:>> > wrote: > > On Thu, Feb 11, 2016 at 01:16:03PM -0500, Alex Hall wrote: > >> I've done more research on this topic. There's a lot out there about > >> using MSSQL with SA, but next to nothing about using ibm_db_sa or > >> specifying drivers. > >> > >> I have pyodbc installed. I downloaded IBM's ODBC zip file, and I've > >> put db2odbc64.dll in my project folder, but don't know how to point SA > >> or pyodbc to it. I've tried several versions of > >> "?driver="db2odbc64.dll"" appended to my connection string, but I keep > >> getting an error: "data source not found and no default driver > >> specified". It doesn't even time out anymore, it just errors out > >> immediately. I've also tried "ibm_db_sa+pyodbc://" to start the > >> string, but that fails too. > >> > >> This *must* be a simple thing, but I can't work out what to do, and > >> Google is failing me. If anyone has any ideas, I'd greatly appreciate > >> hearing them. Thanks, and sorry to keep bugging the list about this. I > >> just have no other options at the moment and I need to get this > >> working soon. > > > > Hi Alex, > > > > Unfortunately, I can't offer you any specific help with IBM DB, but > > judging by the number of replies, it seems nobody on this list can, so > > I only have some stab-in-the-dark suggestions. > > > > In my experience with enterprise software, *nothing* is ever a simple > > thing, not even seemingly trivial operations, such as connecting to a > > database. > > > > You can try using either pyodbc, or the ibm_db driver – in both cases, > > those are just the Python DBAPI drivers which take in textual SQL > > statements, send them to the database in the low-level network > > protocol, and present the results as dumb Python objects. SQLAlchemy > > is a layer on top of them. That means, the first step would be to get > > your Python runtime to open a raw pyodbc, or ibm_db connection to the > > server, and be able to execute raw SQL statements there. Only after > > you confirm this works you can move on to getting SQLAlchemy to work > > with the DBAPI driver. > > > > > > In my understanding, pyodbc is a wrapper around the library unixodbc. > > I'm not sure how it's implemented on Windows – whether it's a port of > > unixodbc, or it uses a different ODBC implementation there. Whatever > > the case, though, on Linux with unixodbc, when I wanted to connect to > > MS SQL, I had to register a low-level driver with the unixodbc > > library. I had to edit a system-wide configuration file > > (/etc/unixODBC/odbcinst.ini), and create a new driver definition in > > there to make unixodbc recognize the FreeTDS driver I'm using as the > > low-level protocol implementation. > > > > I have no idea what low-level ODBC driver is required to connect to > > IBM DB, I'm afraid you'll have to figure that out on your own. The > > official IBM docs at > > > https://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.db2.luw.apdv.cli.doc/doc/c0007944.html?cp=SSEPGG_9.7.0%2F4-0-4 > > > seem to imply that IBM provides their own low-level ODBC driver which > > you'll need to have in place in order to be able to connect to the > > server using ODBC. > > > > In any case, I would expect that the ODBC machinery would expect to > > have the db2odbc64.dll registered somehow with a symbolic name in some > > configuration file, registry, or whatever, and that would be the > > string you're expected to pass as the driver name in the ODBC > > connection string. > > > > Actually, I think with ODBC, you're expected to define all database > > servers in a system-wide configuration file or some such, give each > > one of them a nickname (“DSN”), and just use that to connect to the > > database. > > > > > > The other option is to use the ibm_db Python DBAPI driver. I expect > > you have already seen the official docs: > > > https://www-01.ibm.com/support/knowledgecenter/SSEPGG_9.7.0/com.ibm.swg.im.dbclient.python.doc/doc/c0054366.html > > > Have you tried following the set-up steps in that section there? Try > > to first get it into a state where you can connect to the database > > with ``ibm_db.connect()``, and successfully execute SQL statements > > from the Python shell. > > > > Once you get that to work, you can try to install ibm_db_sa, and try > > to call > > ``sqlalchemy.create_engine('ibm_db_sa:// > user:passw...@host.name.com:50000/database')`` > <http://user:passw...@host.name.com:50000/database')> > > > > If that fails, you still have the option to turn to the official IBM > > support channels – you're using an expensive enterprise database, > > which should come with a support contract. The ibm_db drivers seem to > > be officially supported by IBM, which would mean, if it doesn't work > > for you, you should be able to request help from IBM to fix it. > > > > Good luck! > > > > Michal > > > > -- > > You received this message because you are subscribed to the Google > Groups > > "sqlalchemy" group. > > To unsubscribe from this group and stop receiving emails from it, send > an > > email to sqlalchemy+...@googlegroups.com <javascript:>. > > To post to this group, send email to sqlal...@googlegroups.com > <javascript:>. > > Visit this group at https://groups.google.com/group/sqlalchemy. > > For more options, visit https://groups.google.com/d/optout. > > > -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. 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