ibm-information-center/dist/eclipse/plugins/i5OS.ic.ddp_5.4.0.1/rbal1block2.htm

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<h1 class="topictitle1"><span class="keyword">DB2 Universal Database™ for iSeries™</span> to non-<span class="keyword">DB2 Universal Database for iSeries</span> blocking</h1>
<div><div class="section"><p>Blocking will not occur if: </p>
<ul><li>The cursor is updatable (see <a href="rbal1blocksummary.htm">note
1</a>).</li>
<li>The cursor is potentially updatable (see <a href="rbal1blocksummary.htm">note
2</a>).</li>
<li>The ALWBLK(*NONE) precompile option is used.</li>
<li>The row size is greater than approximately 16 KB.</li>
</ul>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbal1facblk.htm" title="A very important performance factor is whether blocking occurs when data is transferred between the application requester (AR) and the application server (AS). A group of rows transmitted as a block of data requires much less communications overhead than the same data sent one row at a time.">Factors that affect blocking for DRDA</a></div>
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