Why does phpmyadmin act different in uppercase query? <p>When using phpMyAdmin Ver. 4.0.10deb1, there is a table with a column named 'ID', which is a primary key. When I run the query "SELECT id FROM <code>table</code>" I get the error;</p> <pre><code> This table does not contain a unique column. Grid edit, checkbox, Edit, Copy and Delete features are not available. </code></pre> <p>But if I run "SELECT ID FROM <code>table</code>" it works fine. I don't understand.</p>