It looks like the code that runs the "SELECT default_schema_name" query has changed since the version you are running:
https://bitbucket.org/zzzeek/sqlalchemy/commits/1fb4ad75a38c It might be worth upgrading to the latest release. Simon On Mon, Aug 18, 2014 at 5:22 PM, Horcle <g...@umn.edu> wrote: > Thanks, this does help. I was wondering why the return results had no values > given. > > Greg-- > > > On Monday, August 18, 2014 11:17:48 AM UTC-5, Simon King wrote: >> >> I think you are seeing, for each query: >> >> 1. The query itself >> 2. The parameters being passed in to the query >> 3. The names of the columns being returned >> 4. The returned rows, if any. >> >> So for example, the first thing that happens is: >> >> SELECT user_name() >> >> with no parameters >> >> () >> >> returning a result set containing a single column with no name: >> >> ('',) >> >> followed by a single row containing a single value, the unicode string >> "dbo": >> >> (u'dbo', ) >> >> The second query goes like this: >> >> SELECT default_schema_name FROM >> sys.database_principals >> WHERE name = ? >> AND type = 'S' >> >> Note the bound parameter ("name = ?"). The next line tells us that SA >> is sending the unicode string "dbo" for that parameter: >> >> (u'dbo',) >> >> The result set has a single column called 'default_schema_name': >> >> ('default_schema_name',) >> >> ...but there are no matching rows. >> >> Then a bit further along, SA is running this query: >> >> SELECT [TABLES_1].[TABLE_NAME] >> FROM [INFORMATION_SCHEMA].[TABLES] AS [TABLES_1] >> WHERE [TABLES_1].[TABLE_SCHEMA] = CAST(? AS NVARCHAR(max)) AND >> [TABLES_1].[TABLE_TYPE] = ? ORDER BY [TABLES_1].[TABLE_NAME] >> >> ...passing the parameters "dbo" and "BASE TABLE", but not getting any >> results back. >> >> I don't know anything about MS-SQL so can't tell you why that is, but >> perhaps you've got enough information to carry on digging? >> >> Hope that helps, >> >> Simon >> >> >> On Mon, Aug 18, 2014 at 4:27 PM, Horcle <g...@umn.edu> wrote: >> > Indeed! >> > >> > Here is the output: >> > >> > >> > gms$ python test_connect.py >> > 2014-08-18 10:17:28,095 INFO sqlalchemy.engine.base.Engine SELECT >> > user_name() >> > 2014-08-18 10:17:28,095 INFO sqlalchemy.engine.base.Engine () >> > 2014-08-18 10:17:28,097 DEBUG sqlalchemy.engine.base.Engine Col ('',) >> > 2014-08-18 10:17:28,098 DEBUG sqlalchemy.engine.base.Engine Row (u'dbo', >> > ) >> > 2014-08-18 10:17:28,099 INFO sqlalchemy.engine.base.Engine >> > SELECT default_schema_name FROM >> > sys.database_principals >> > WHERE name = ? >> > AND type = 'S' >> > >> > 2014-08-18 10:17:28,099 INFO sqlalchemy.engine.base.Engine (u'dbo',) >> > 2014-08-18 10:17:28,101 DEBUG sqlalchemy.engine.base.Engine Col >> > ('default_schema_name',) >> > 2014-08-18 10:17:28,103 INFO sqlalchemy.engine.base.Engine SELECT >> > CAST('test >> > plain returns' AS VARCHAR(60)) AS anon_1 >> > 2014-08-18 10:17:28,103 INFO sqlalchemy.engine.base.Engine () >> > 2014-08-18 10:17:28,106 INFO sqlalchemy.engine.base.Engine SELECT >> > CAST('test >> > unicode returns' AS NVARCHAR(60)) AS anon_1 >> > 2014-08-18 10:17:28,106 INFO sqlalchemy.engine.base.Engine () >> > <sqlalchemy.engine.base.Connection object at 0x101839490> >> > 2014-08-18 10:17:28,382 INFO sqlalchemy.engine.base.Engine select 6 * 7 >> > as >> > [Result]; >> > 2014-08-18 10:17:28,382 INFO sqlalchemy.engine.base.Engine () >> > 2014-08-18 10:17:28,384 DEBUG sqlalchemy.engine.base.Engine Col >> > ('Result',) >> > 2014-08-18 10:17:28,384 DEBUG sqlalchemy.engine.base.Engine Row (42, ) >> > 42 >> > 2014-08-18 10:17:28,389 INFO sqlalchemy.engine.base.Engine SELECT >> > [TABLES_1].[TABLE_NAME] >> > FROM [INFORMATION_SCHEMA].[TABLES] AS [TABLES_1] >> > WHERE [TABLES_1].[TABLE_SCHEMA] = CAST(? AS NVARCHAR(max)) AND >> > [TABLES_1].[TABLE_TYPE] = ? ORDER BY [TABLES_1].[TABLE_NAME] >> > 2014-08-18 10:17:28,389 INFO sqlalchemy.engine.base.Engine (u'dbo', >> > 'BASE >> > TABLE') >> > 2014-08-18 10:17:28,394 DEBUG sqlalchemy.engine.base.Engine Col >> > ('TABLE_NAME',) >> > A >> > >> > Not quite sure how to parse this? >> > >> > For example, is "u'dbo'" what is being used as the schema? >> > >> > Greg-- >> > >> > On Monday, August 18, 2014 10:05:09 AM UTC-5, Simon King wrote: >> >> >> >> On Mon, Aug 18, 2014 at 3:47 PM, Horcle <g...@umn.edu> wrote: >> >> > On Friday, August 15, 2014 8:28:41 PM UTC-5, Michael Bayer wrote: >> >> >> >> >> >> >> >> >> On Aug 15, 2014, at 5:03 PM, Greg Silverman <g...@umn.edu> wrote: >> >> >> >> >> >> >> >> >> Then, I thought, what if this is an SQLAlchemy issue. Looks to be. I >> >> >> ran >> >> >> the following script as a test: >> >> >> >> >> >> import pyodbc >> >> >> import sqlalchemy >> >> >> from sqlalchemy.engine import reflection >> >> >> from sqlalchemy.engine.reflection import Inspector >> >> >> >> >> >> def connect(): >> >> >> return pyodbc.connect( >> >> >> 'DRIVER={FreeTDS};SERVER=<ip_address>;' >> >> >> 'DATABASE=<db_name>;UID=test;PWD=test;port=1433;' >> >> >> 'TDS_Version=9.1;') >> >> >> engine = sqlalchemy.create_engine('mssql://', creator=connect) >> >> >> conn = engine.connect() >> >> >> print conn >> >> >> >> >> >> for row in engine.execute('select 6 * 7 as [Result];'): >> >> >> print row.Result >> >> >> >> >> >> insp = reflection.Inspector.from_engine(engine) >> >> >> table_name = 'irb_desc' >> >> >> table_names = insp.get_table_names() >> >> >> if table_name not in table_names: >> >> >> print 'A' >> >> >> >> >> >> Again, I am connecting fine with the database create.engine method >> >> >> (that >> >> >> is '42' is printing as expected), but when I run the >> >> >> inspector.get_table_names method with the given conditional it is >> >> >> printing >> >> >> the 'A' (I have tried other table names in the same database to >> >> >> which I >> >> >> added 'irbd_balance,' all with the same result. >> >> >> >> >> >> >> >> >> >> >> >> what is the SQL output if you set echo=‘debug’; then, take the SQL >> >> >> you >> >> >> see and take a look at what it’s SELECTing so you can see what might >> >> >> be >> >> >> wrong. Probably some schema name setting or something like that. >> >> > >> >> > >> >> > >> >> > Thanks, I did not realize this was an option (actually, it is >> >> > echo=True, >> >> > but >> >> > at least I can see the SQL being sent). Hopefully this will lead me >> >> > to >> >> > an >> >> > answer. >> >> > >> >> >> >> "echo='debug'" will show you more information than "echo=True" (it >> >> shows the rows coming back as well as the query that is sent) >> >> >> >> Simon >> > >> > -- >> > 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. >> > To post to this group, send email to sqlal...@googlegroups.com. >> > Visit this group at http://groups.google.com/group/sqlalchemy. >> > For more options, visit https://groups.google.com/d/optout. > > -- > 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+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at http://groups.google.com/group/sqlalchemy. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. 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