So what I want to do is to reflect all the tables in an existing MS
SQL Server database, and use for loop on sorted_tables list and
tometadata() function to create a new PostgreSQL database. However,
there are some datatype incompatibility. Got an exception about
collation on MS SQL server tables.
I think what desmaj said makes a good point. Actually the Source table/
mapper indeed was created by someone else, and I just used Attach
database to attach the mdf file and log file to the server.
But how am I going to deal with this though? should I go ahead and use
SA's account and create a
Hello. Recently I have been working on this environment:
linux + pyodbc + sqlalchemy 5.8 + ms sql server.
In the program, I try to build a mapper from a db table to my python
class, then I instatiate the class, and try to use session.add() to
insert record to database.
However, I need to have
Wondering if I need the creating table, or creating views priviledge
to reflect tables.
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Don't want to reask, but help me please.
Can somebody tell me what kind of permission (in terms of ms sql
server) do I need in order to do table reflection?
Thank you!
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After 6 hours of searching and debugging,finally figured out the
permission needed for table reflection, those are:
select, and connect replication
for ORM to work, you need one more:
Alter any schema
to do add() or delete() you obviously need more permission,
respectively.
Those are
quick question: for sqlalchemy+ms sql server, what kind of
accessibility does it need to do table reflection?
What I am trying to do is that I try to reflect a table from an
existing database, and I successfully created an engine. But I got
following exception:
raise exc.DBAPIError.instance(None,
Thanks for clarification. Sorry that I do not think I understand
circular dependency and compsite key very well.
Also can you help me to read the circular dependency error message? I
mean How to find the circle from the error message of Circular
Dependency.
Here is the error message:
I want to create a table, say:
employee_table = Table(
'employee',metadata,
Column('id',Integer,primary_key=True),
Column('name',String(255))
)
staffGroup_Table = Table(
'role',metadata,
Thanks a lot, this is the information I am looking for!
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Whenever I try to use schema.sequence() function on ms sql server, the
return serial number (after flush()) is not started from 0, instead,
it is started from a random number or something.
wondering how to work aroud this issue. try to specify start = 0 in
sequence function, but no luck
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I mean, I tried to debug a program, using session add() to insert new
records to database after I deleted all the old records from a table.
I used the schema.sequence() to build up a mapper
Can anyone help?
On 3月16日, 下午2时05分, Tan Yi tonytan198...@gmail.com wrote:
Whenever I try to use
pymssql does not suport reading in nvarchar and ntext since it is
encoded as unicode in sqlserver. is any API could convert the query
result into Unicode?
Tried 'convert_unicode' argument in create_engine, and it seems not
working.
Thank you!
--Tony
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