74d9d71484
tests. Although the two are aliases of one another, it makes sense to be consistent and to use the one that the DB API prefers as well.
34 lines
1.3 KiB
Python
34 lines
1.3 KiB
Python
#------------------------------------------------------------------------------
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# Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
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#------------------------------------------------------------------------------
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#------------------------------------------------------------------------------
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# ReturnNumbersAsDecimals.py
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# Returns all numbers as decimals by means of an output type handler. This is
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# needed if the full decimal precision of Oracle numbers is required by the
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# application. See this article
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# (http://blog.reverberate.org/2016/02/06/floating-point-demystified-part2.html)
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# for an explanation of why decimal numbers (like Oracle numbers) cannot be
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# represented exactly by floating point numbers.
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#
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# This script requires cx_Oracle 5.0 and higher.
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#------------------------------------------------------------------------------
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from __future__ import print_function
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import cx_Oracle
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import decimal
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import SampleEnv
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def OutputTypeHandler(cursor, name, defaultType, size, precision, scale):
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if defaultType == cx_Oracle.NUMBER:
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return cursor.var(decimal.Decimal, arraysize = cursor.arraysize)
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connection = cx_Oracle.connect(SampleEnv.MAIN_CONNECT_STRING)
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connection.outputtypehandler = OutputTypeHandler
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cursor = connection.cursor()
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cursor.execute("select * from TestNumbers")
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for row in cursor:
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print("Row:", row)
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