author | Dominic Pinkman <dominic.pinkman@nokia.com> |
Wed, 16 Jun 2010 10:24:13 +0100 | |
changeset 10 | d4524d6a4472 |
parent 7 | 51a74ef9ed63 |
permissions | -rw-r--r-- |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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<?xml version="1.0" encoding="utf-8"?> |
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. --> |
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<!-- This component and the accompanying materials are made available under the terms of the License |
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parents:
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"Eclipse Public License v1.0" which accompanies this distribution, |
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". --> |
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parents:
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<!-- Initial Contributors: |
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Nokia Corporation - initial contribution. |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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Contributors: |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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--> |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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<!DOCTYPE concept |
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PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd"> |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<concept id="GUID-8579426F-C443-558B-9380-FED79D4BA8F4" xml:lang="en"><title>Rules |
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for DBMS names</title><shortdesc>Tables, indexes, columns etc. have naming restrictions such as |
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they must begin with an alphabetic character. This document lists those rules.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody> |
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<p><keyword>Tables</keyword>, <keyword>indexes</keyword> and <keyword>columns</keyword> are |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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named objects within a <keyword>database</keyword>. A DBMS name must begin |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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with an alphabetic character, after which any alphabetic, numeric or the <codeph>_</codeph> (underscore) |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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character may be used. DBMS names are also limited to 64 characters in length.</p> |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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<p>Table names must be unique within a database, and columns and indexes must |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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have unique names within the table to which they belong. For the purposes |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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of uniqueness and identification, the names are folded before comparison, |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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so two columns named <codeph>column_one</codeph> and <codeph>Column_ONE</codeph> are |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
parents:
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considered to have the same name.</p> |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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<p>Names in a database have no further restrictions.</p> |
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Dominic Pinkman <Dominic.Pinkman@Nokia.com>
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</conbody></concept> |