DECREASE command - Revision history

DCameron: /* Usage notes */

2019-02-11T16:00:52Z

Usage notes

← Older revision		Revision as of 16:00, 11 February 2019
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	==Usage notes==		==Usage notes==
	<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for [[Hash_key_files\|hash key files]]) and [[Table_D_(File_architecture)\|Table D]] can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>		<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for [[Hash_key_files\|hash key files]]) and [[Table_D_(File_architecture)\|Table D]] can be reassigned to free space. The sizes of [[Table_A_(File_architecture)\|Tables A]] and C cannot be changed without recreating the file and reloading all of the data.</p>
	<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>		<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>
	<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>		<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>

DCameron: /* Usage notes */

2019-02-11T15:59:47Z

Usage notes

← Older revision		Revision as of 15:59, 11 February 2019
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	==Usage notes==		==Usage notes==
	<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for [[Hash_key_files\|hash key files]]) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>		<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for [[Hash_key_files\|hash key files]]) and [[Table_D_(File_architecture)\|Table D]] can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>
	<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>		<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>
	<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>		<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>

DCameron: /* Usage notes */

2019-02-11T15:59:02Z

Usage notes

← Older revision		Revision as of 15:59, 11 February 2019
Line 41:		Line 41:

	==Usage notes==		==Usage notes==
	<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>		<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for [[Hash_key_files\|hash key files]]) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>
	<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>		<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>
	<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>		<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>

DCameron: /* Usage notes */

2019-02-11T15:58:04Z

Usage notes

← Older revision		Revision as of 15:58, 11 February 2019
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	==Usage notes==		==Usage notes==
	<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in Table B (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>		<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in [[Table_B_(File_architecture)\|Table B]] (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>
	<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>		<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>
	<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>		<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>
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	<p class="code">M204.1036: UPDATES NOT PERMITTED.		<p class="code">M204.1036: UPDATES NOT PERMITTED.
	</p>		</p>

	==See also==		==See also==
	Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.		Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.

DCameron: /* Syntax */

2019-02-11T15:56:37Z

Syntax

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	<li>		<li>
	<p>If TABLEX is specified, <var class="term">n</var> must be in the range 1 through (XSIZE - XHIGHPG -1). </p>		<p>If TABLEX is specified, <var class="term">n</var> must be in the range 1 through (<var>[[XSIZE_parameter\|XSIZE]]</var> - <var>[[XHIGHPG_parameter\|XHIGHPG]]</var> -1). </p>
	</li>		</li>
	</ul>		</ul>

DCameron: /* Syntax */

2019-02-11T15:55:23Z

Syntax

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	<ul>		<ul>
	<li>		<li>
	<p>If TABLEB is specified, <var class="term">n</var> must be in the range 1 through (BSIZE - BHIGHPG - 1).</p>		<p>If TABLEB is specified, <var class="term">n</var> must be in the range 1 through (<var>[[BSIZE_parameter\|BSIZE]]</var> - <var>[[BHIGHPG_parameter\|BHIGHPG]]</var> - 1).</p>
	</li>		</li>

	<li>		<li>
	<p>If TABLED is specified, <var class="term">n</var> must be in the range 1 through the value of DSIZE less the value of DHIGHPG. (See "Usage notes" below.) </p>		<p>If TABLED is specified, <var class="term">n</var> must be in the range 1 through the value of <var>[[DSIZE_parameter\|DSIZE]]</var> less the value of <var>[[DHIGHPG_parameter\|DHIGHPG]]</var>. (See "Usage notes" below.) </p>
	</li>		</li>

	<li>		<li>
	<p>If TABLEE is specified, <var class="term">n</var> must be in the range 1 through (ESIZE - EHIGHPG -1). Additionally, you cannot decrease the size of Table E below 20 pages; thus (ESIZE - <var class="term">n</var>) must be greater than or equal to 20.</p>		<p>If TABLEE is specified, <var class="term">n</var> must be in the range 1 through (<var>[[ESIZE_parameter\|ESIZE]]</var> - <var>[[EHIGHPG_parameter\|EHIGHPG]]</var> -1). Additionally, you cannot decrease the size of Table E below 20 pages; thus (ESIZE - <var class="term">n</var>) must be greater than or equal to 20.</p>
	</li>		</li>

ELowell at 22:37, 11 December 2013

2013-12-11T22:37:40Z

← Older revision		Revision as of 22:37, 11 December 2013
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	<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in Table B (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>		<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in Table B (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>
	<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>		<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>
	<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[~~File_Integrity_and_Recovery~~#Model_204_update_units\|non-backoutable update unit]]. </p>		<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_integrity_and_recovery#Model_204_update_units\|non-backoutable update unit]]. </p>
	<p>To use the DECREASE command you must have update authority to the selected file. If the file is open for read-only access, the DECREASE command is rejected with the following message: </p>		<p>To use the DECREASE command you must have update authority to the selected file. If the file is open for read-only access, the DECREASE command is rejected with the following message: </p>
	<p class="code">M204.1036: UPDATES NOT PERMITTED.		<p class="code">M204.1036: UPDATES NOT PERMITTED.

ELowell: /* See also */

2013-10-10T18:18:01Z

ELowell: /* See also */

2013-10-10T18:17:31Z

ELowell: /* Usage notes */

2013-10-10T18:14:26Z

Usage notes

← Older revision		Revision as of 18:14, 10 October 2013
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	<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in Table B (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>		<p>The DECREASE command allows the file manager to conserve file space by deallocating a certain portion of a <var class="product">Model 204</var> file. Unused pages in Table B (except for hash key files) and Table D can be reassigned to free space. The sizes of Tables A and C cannot be changed without recreating the file and reloading all of the data.</p>
	<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>		<p>The DECREASE command can be issued only in file context, that is, the current default must be a file, not a group.</p>
	<p>Increasing and decreasing file sizes, the various tables that make up a file, and the relevant table parameters are discussed in detail in File Management topics such as [[Creating a File (File Management)]].</p>
	<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_Integrity_and_Recovery#Model_204_update_units\|non-backoutable update unit]]. </p>		<p>When it processes a DECREASE command, <var class="product">Model 204</var> ends any update unit in progress and begins a [[File_Integrity_and_Recovery#Model_204_update_units\|non-backoutable update unit]]. </p>
	<p>To use the DECREASE command you must have update authority to the selected file. If the file is open for read-only access, the DECREASE command is rejected with the following message: </p>		<p>To use the DECREASE command you must have update authority to the selected file. If the file is open for read-only access, the DECREASE command is rejected with the following message: </p>
	<p class="code">M204.1036: UPDATES NOT PERMITTED.		<p class="code">M204.1036: UPDATES NOT PERMITTED.
	</p>		</p>
			==See also==
			<ul>
			<li>Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.</li>
			<li>Increasing and decreasing file sizes, the various tables that make up a file, and the relevant table parameters are discussed in detail in File Management topics such as [[Creating a File (File Management)]].</li>
			</ul>
	[[Category: File manager commands]]		[[Category: File manager commands]]
	[[Category:Commands]]		[[Category:Commands]]

← Older revision		Revision as of 18:18, 10 October 2013
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	</p>		</p>
	==See also==		==See also==
	~~<ul>~~		Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.
	~~<li>~~Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.~~</li>~~
	~~</ul>~~
	[[Category: File manager commands]]		[[Category: File manager commands]]
	[[Category:Commands]]		[[Category:Commands]]

← Older revision		Revision as of 18:17, 10 October 2013
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	<ul>		<ul>
	<li>Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.</li>		<li>Further information about the use of <var>DECREASE</var> can be found in the [[Managing file and table sizes]] article.</li>
	<li>Increasing and decreasing file sizes, the various tables that make up a file, and the relevant table parameters are discussed in detail in File Management topics such as [[Creating a File (File Management)]].</li>
	</ul>		</ul>
	[[Category: File manager commands]]		[[Category: File manager commands]]
	[[Category:Commands]]		[[Category:Commands]]