Fixed: NameError: name 'locale_encoding' is not defined File /bin/rst2html.py, line 17, in <module> from docutils.core import publish_cmdline, default_description File /usr/lib/python2.7/site-packages/docutils/core.py, line 20, in <module> from docutils import frontend, io, utils, readers, writers File /usr/lib/python2.7/site-packages/docutils/frontend.py, line 41, in <module> import docutils.utils File /usr/lib/python2.7/site-packages/docutils/utils/__init__.py, line 20, in <module> import docutils.io File /usr/lib/python2.7/site-packages/docutils/io.py, line 18, in <module> from docutils.utils.error_reporting import locale_encoding, ErrorString, ErrorOutput File /usr/lib/python2.7/site-packages/docutils/utils/error_reporting.py, line 60, in <module> codecs.lookup(locale_encoding or '') # None -> '' NameError: name 'locale_encoding' is not defined

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.. -*- coding: utf-8; -*-

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======

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 SQL.

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======

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.. contents::

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   :local:

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Joins.

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======

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  http://www.codinghorror.com/blog/2007/10/a-visual-explanation-of-sql-joins.html

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                A Visual Explanation of SQL Joins.

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Primary key length.

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===================

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For ``int`` type (32-bit): ``NUMBER(9)``. For ``long`` type (64-bit):

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``NUMBER(18)``.

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Oracle allow up to 38 significant digits in ``NUMBER`` and up to 28 digits in

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``SEQUENCE``.

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  http://docs.oracle.com/cd/B28359_01/server.111/b28318/datatype.htm

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                Oracle Data Types

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  http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_6015.htm

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                CREATE SEQUENCE.

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  http://docs.oracle.com/cd/E19501-01/819-3659/gcmaz/index.html

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                Java Type to SQL Type Mappings.