Field group design - Revision history

ELowell: /* See also */

2019-02-15T18:22:08Z

JAL: /* Defining a field group */ add link

2015-04-13T21:11:24Z

Defining a field group: add link

← Older revision		Revision as of 21:11, 13 April 2015
Line 53:		Line 53:
	<b>Syntax</b>		<b>Syntax</b>
	<p>		<p>
	The ~~following syntax~~ is used to define a field group:</p>		The <var>[[DEFINE FIELDGROUP command\|DEFINE FIELDGROUP]]</var> command is used to define a field group:</p>
	<p class="syntax">DEFINE FIELDGROUP <span class="term">fieldGroupName</span>		<p class="syntax">DEFINE FIELDGROUP <span class="term">fieldGroupName</span>
	</p>		</p>

JAL: minor wordsmithing

2015-04-08T20:07:52Z

minor wordsmithing

← Older revision		Revision as of 20:07, 8 April 2015
Line 1:		Line 1:
	==Overview==		==Overview==
	<p>		<p>
	<var class="product">Model 204</var> supports non-relational, de-normalized data structures. Many <var class="product">Model 204</var> sites have enjoyed significant cost and performance benefits from efficiently processing multiply occurring fields. This concept has been enhanced to introduce physical field groups ~~that~~ let you view and process ~~groups~~ of fields as a logical entity.</p>		<var class="product">Model 204</var> supports non-relational, de-normalized data structures. Many <var class="product">Model 204</var> sites have enjoyed significant cost and performance benefits from efficiently processing multiply occurring fields. This concept has been enhanced to introduce <b>physical field groups</b>, which let you view and process a group of fields as a single logical entity.</p>

	This feature is available in Model 204 version 7.5.		This feature is available as of Model 204 version 7.5.

	===Traditional approaches to multiply occurring fields===		===Traditional approaches to multiply occurring fields===
Line 30:		Line 30:
	:POSTAL_CODE		:POSTAL_CODE

	However, if you add historical data (the customer might move during his lifetime, and you may want to track this history), maintaining these sets of fields becomes problematic. And as the records grow, there might also be performance issues: although the application treats them as a group, it still must update and retrieve the fields individually.		However, if you add historical data (the customer might move during his lifetime, and you may want to track this history), maintaining these sets of fields becomes problematic. And as the records grow, there might also be performance issues: although the application treats them as a logical group, it still must update and retrieve the fields individually.

	===Field group approach to multiply occurring fields===		===Field group approach to multiply occurring fields===

JAL: typo

2015-04-02T20:52:34Z

typo

← Older revision		Revision as of 20:52, 2 April 2015
Line 77:		Line 77:
	<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.		<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.
	<p>		<p>
	of the [[Field design#AT-MOST-ONE, REPEATABLE, and EXACTLY-ONE attributes\|occurrence attributes]] (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p>		Of the [[Field design#AT-MOST-ONE, REPEATABLE, and EXACTLY-ONE attributes\|occurrence attributes]] (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p>
	<p class="note"><b>Note:</b> The <var>OCCURS</var> attribute may not be specified for a		<p class="note"><b>Note:</b> The <var>OCCURS</var> attribute may not be specified for a
	field group field. </p></li>		field group field. </p></li>

JAL at 20:24, 5 August 2014

2014-08-05T20:24:05Z

← Older revision		Revision as of 20:24, 5 August 2014
Line 170:		Line 170:
	<li>[[Field group (File architecture)]]</li>		<li>[[Field group (File architecture)]]</li>

	<li>[[~~Operations on~~ multiply occurring fields]] </li>		<li>[[Processing multiply occurring fields and field groups]] </li>
	</ul>		</ul>

	[[Category:Model 204 files]]		[[Category:Model 204 files]]

ELowell at 18:54, 12 May 2014

2014-05-12T18:54:49Z

← Older revision		Revision as of 18:54, 12 May 2014
Line 57:		Line 57:
	</p>		</p>
	<p>		<p>
	Where <var class="term">fieldGroupName</var> specifies the name of the field group you are defining. The rules for the field group name are the same as for [[Field design ~~(File management)~~#Field naming\|fields]]. </p>		Where <var class="term">fieldGroupName</var> specifies the name of the field group you are defining. The rules for the field group name are the same as for [[Field design#Field naming\|fields]]. </p>

	==Defining a field inside a field group==		==Defining a field inside a field group==
Line 77:		Line 77:
	<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.		<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.
	<p>		<p>
	of the [[Field design ~~(File management)~~#AT-MOST-ONE, REPEATABLE, and EXACTLY-ONE attributes\|occurrence attributes]] (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p>		of the [[Field design#AT-MOST-ONE, REPEATABLE, and EXACTLY-ONE attributes\|occurrence attributes]] (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p>
	<p class="note"><b>Note:</b> The <var>OCCURS</var> attribute may not be specified for a		<p class="note"><b>Note:</b> The <var>OCCURS</var> attribute may not be specified for a
	field group field. </p></li>		field group field. </p></li>

Dme: Dme moved page Field group design (File management) to Field group design

2014-05-10T04:24:36Z

Dme moved page Field group design (File management) to Field group design

← Older revision	Revision as of 04:24, 10 May 2014
(No difference)

DmeWiccan: Automatically generated page update

2014-05-09T22:45:43Z

Automatically generated page update

← Older revision		Revision as of 22:45, 9 May 2014
Line 173:		Line 173:
	</ul>		</ul>

	[[Category:~~File management~~]]		[[Category:Model 204 files]]

JAL: /* Defining a field inside a field group */

2014-04-11T21:07:32Z

Defining a field inside a field group

← Older revision		Revision as of 21:07, 11 April 2014
Line 77:		Line 77:
	<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.		<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.
	<p>		<p>
	of the occurrence attributes (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p></li>		of the [[Field design (File management)#AT-MOST-ONE, REPEATABLE, and EXACTLY-ONE attributes\|occurrence attributes]] (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p>
			<p class="note"><b>Note:</b> The <var>OCCURS</var> attribute may not be specified for a
			field group field. </p></li>
	</ul>		</ul>

JAL: /* Defining a field inside a field group */

2014-04-11T20:52:47Z

Defining a field inside a field group

← Older revision		Revision as of 20:52, 11 April 2014
Line 75:		Line 75:
	If <var class="term">fieldGroupName</var> is indicated with an asterisk (<tt>*</tt>), the field is included in all field groups defined for this file.</p></li>		If <var class="term">fieldGroupName</var> is indicated with an asterisk (<tt>*</tt>), the field is included in all field groups defined for this file.</p></li>

	<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.</li>		<li><var class="term">attribute1 attribute2 </var>... specifies other field attributes.
			<p>
			of the occurrence attributes (<var>AT-MOST-ONE</var>, <var>EXACTLY-ONE</var>, and <var>REPEATABLE</var>), <var>EXACTLY-ONE</var> is the default for a field defined within a field group. </p></li>
	</ul>		</ul>

← Older revision		Revision as of 18:22, 15 February 2019
Line 171:		Line 171:

	<li>[[Processing multiply occurring fields and field groups]] </li>		<li>[[Processing multiply occurring fields and field groups]] </li>

			<li>[[Data_maintenance#Updating_field_groups\|Updating field groups]]</li>
	</ul>		</ul>

	[[Category:Model 204 files]]		[[Category:Model 204 files]]