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<h1>OpenLink Virtuoso Universal Server: Documentation - column</h1>
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<h2>column</h2>
<div class="refpurpose">A column marker.</div>
<div class="funcsynopsis">
<span class="funcdef">
<<a href="vc_column.html">
<span class="function">column</span>
</a>
name (required)
label (optional)
input-format (optional)
output-format (optional)
xsd-stub-xhtml (optional)
width (optional)
height (optional)
debug-srcfile (optional)
debug-srcline (optional)
debug-log (optional)
/></span>
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<div class="refsect1">
<div class="refsect1title">Description</div>
<p>
A column marker for use in v:data-set, v:data-grid and v:data-source.
This element should exist for each selected column of the SQL expression of the data set.
If this is specified under data-set, data-source or data-grid controls, this must be the exact same columns as in SQL statement to be evaluated. If those element is omitted in data-set or data-grid, the columns will be extracted from compilation of the SQL statement.
However, this will always be required for calls of stored procedures that return resultsets and for the data-source control.
</p>
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<div class="refsect1">
<div class="refsect1title">Attributes</div>
<div class="formalpara">
<strong>name = <a href="vc_type_SqlName.html">SqlName</a>
</strong>
<p>The name of column
</p>
</div>
<div class="formalpara">
<strong>label = <a href="vc_type_CalculateableValue.html">CalculateableValue</a>
</strong>
<p>Alternate text which could be used to display in column headings.
</p>
</div>
<div class="formalpara">
<strong>input-format</strong>
<p>A sprintf format string for printing the input value
</p>
</div>
<div class="formalpara">
<strong>output-format</strong>
<p>A sprintf format string for printing the output value
</p>
</div>
<div class="formalpara">
<strong>xsd-stub-xhtml</strong>
<p>This attribute is for internal use only. It has no effect if added to the source VSPX file.</p>
</div>
<div class="formalpara">
<strong>width</strong>
<p>Visible width of the control when it is displayed in WYSIWYG tools when the source VSPX text is edited.
The value of this attribute will not be used when the resulting HTML is rendered.</p>
</div>
<div class="formalpara">
<strong>height</strong>
<p>Visible width of the control when it is displayed in WYSIWYG tools when the source VSPX text is edited.
The value of this attribute will not be used when the resulting HTML is rendered.</p>
</div>
<div class="formalpara">
<strong>debug-srcfile</strong>
<p>URI of the source document where the tag comes from.</p>
</div>
<div class="formalpara">
<strong>debug-srcline</strong>
<p>Line number in the source document where the tag comes from.</p>
</div>
<div class="formalpara">
<strong>debug-log</strong>
<p>This defines what sort of data are saved to the debugging log.
</p>
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