ass="token operator">&lt;</span><a href="../-update-builder/update.html">S</a><span class="token operator">&gt;</span></span></span><span class="token punctuation">)</span></div><div class="brief "><p class="paragraph">Updates the mapping of the specified <a href="../-update-builder/update.html">column</a> with the specified <a href="../-update-builder/update.html">value</a> if <a href="../-update-builder/update.html">column</a> has not been previously set up for a change and if <a href="../-update-builder/