XQLEN parameter: Difference between revisions
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{{Template:XQLEN parameter subtitle}} | |||
==Summary== | ==Summary== | ||
<dl> | <dl> | ||
| Line 10: | Line 11: | ||
<dd>All | <dd>All | ||
<dt>Introduced | <dt>Introduced | ||
<dd><var class="product">Model 204 V7. | <dd><var class="product">Model 204 V7.1</var> | ||
</dl> | </dl> | ||
==Description== | ==Description== | ||
The current number of pages in the Table X reuse queue. When record deletions occur in a Table X page, the page is added to the reuse queue, if the following conditions are true: | The current number of pages in the [[Table_X_(File_architecture)|Table X]] reuse queue. When record deletions occur in a Table X page, the page is added to the reuse queue, if the following conditions are true: | ||
<ul> | <ul> | ||
<li> | <li> | ||
Enough extra bytes of free space are available beyond XRESERVE to satisfy the free space required for the XREUSE parameter.</li> | Enough extra bytes of free space are available beyond <var>[[XRESERVE_parameter|XRESERVE]]</var> to satisfy the free space required for the <var>[[XREUSE_parameter|XREUSE]]</var> parameter.</li> | ||
<li> | <li> | ||
At least one record number is available. </li> | At least one record number is available. </li> | ||
</ul> | </ul> | ||
<p>For more information about the reuse queue, | <p>For more information about the reuse queue, see [[File design#Unordered_Files|Unordered Files]]. </p> | ||
[[Category:File parameters]] | [[Category:File parameters]] | ||
[[Category:Tables parameters]] | [[Category:Tables parameters]] | ||
[[Category:Parameters]] | [[Category:Parameters]] | ||
Latest revision as of 16:26, 12 December 2017
Table X reuse-queue length
Summary
- Default value
- None
- Parameter type
- Tables
- Where set
- View-only
- Related products
- All
- Introduced
- Model 204 V7.1
Description
The current number of pages in the Table X reuse queue. When record deletions occur in a Table X page, the page is added to the reuse queue, if the following conditions are true:
- Enough extra bytes of free space are available beyond XRESERVE to satisfy the free space required for the XREUSE parameter.
- At least one record number is available.
For more information about the reuse queue, see Unordered Files.