I decided to try to get some reflection using SqlSoup on a MS SQL Server 2008
database.
This is a copy of my session with the DSN obfuscated.
>>> from sqlalchemy.ext.sqlsoup import SqlSoup
>>> engine1 = SqlSoup("mssql+pyodbc://mydsn")
>>> valid_species = db.valid_species.all()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'db' is not defined
>>> valid_species = engine1.valid_species.all()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/ext/sqlsoup.py",
line 792, in __getattr__
return self.entity(attr)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/ext/sqlsoup.py",
line 789, in entity
return self.map_to(attr, tablename=attr, schema=schema)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/ext/sqlsoup.py",
line 672, in map_to
schema=schema or self.schema)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/schema.py",
line 210, in __new__
table._init(name, metadata, *args, **kw)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/schema.py",
line 258, in _init
include_columns=include_columns)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/base.py",
line 1863, in reflecttable
self.dialect.reflecttable(conn, table, include_columns)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/default.py",
line 228, in reflecttable
return insp.reflecttable(table, include_columns)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/reflection.py",
line 382, in reflecttable
for col_d in self.get_columns(table_name, schema, **tblkw):
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/reflection.py",
line 229, in get_columns
**kw)
File "<string>", line 1, in <lambda>
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/reflection.py",
line 46, in cache
ret = fn(self, con, *args, **kw)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/dialects/mssql/base.py",
line 1244, in get_columns
c = connection.execute(s)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/base.py",
line 1191, in execute
params)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/base.py",
line 1271, in _execute_clauseelement
return self.__execute_context(context)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/base.py",
line 1302, in __execute_context
context.parameters[0], context=context)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/base.py",
line 1401, in _cursor_execute
context)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/base.py",
line 1394, in _cursor_execute
context)
File
"/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/SQLAlchemy-0.6.6-py2.7.egg/sqlalchemy/engine/default.py",
line 299, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.ProgrammingError: (ProgrammingError) ('42000', '[42000]
[Actual][SQL Server] The data types nvarchar and ntext are incompatible in the
equal to operator. (402) (SQLExecDirectW)') u'SELECT
[COLUMNS_1].[TABLE_SCHEMA], [COLUMNS_1].[TABLE_NAME],
[COLUMNS_1].[COLUMN_NAME], [COLUMNS_1].[IS_NULLABLE], [COLUMNS_1].[DATA_TYPE],
[COLUMNS_1].[ORDINAL_POSITION], [COLUMNS_1].[CHARACTER_MAXIMUM_LENGTH],
[COLUMNS_1].[NUMERIC_PRECISION], [COLUMNS_1].[NUMERIC_SCALE],
[COLUMNS_1].[COLUMN_DEFAULT], [COLUMNS_1].[COLLATION_NAME] \nFROM
[INFORMATION_SCHEMA].[COLUMNS] AS [COLUMNS_1] \nWHERE [COLUMNS_1].[TABLE_NAME]
= ? AND [COLUMNS_1].[TABLE_SCHEMA] = ? ORDER BY [COLUMNS_1].[ORDINAL_POSITION]'
(u'valid_species', u'dbo')
R. Mark Sharp, Ph.D.
[email protected]<mailto:[email protected]>
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