Atributos da tabela sensor<br><br>
<table border=2>
<tr>
<th>Nome</th>
<th>Tipo</th>
<th>Null</th>
<th>Chave</th>
<th>Padrão</th>
<th>Extra</th>

</tr><tr><td>idsensor</td><td>int(10) unsigned</td><td>NO</td><td>PRI</td><td></td><td>auto_increment</td></tr><tr><td>nome</td><td>varchar(45)</td><td>YES</td><td></td><td></td><td></td></tr><tr><td>contador</td><td>int(10) unsigned</td><td>YES</td><td></td><td>0</td><td></td></tr><tr><td>limite</td><td>int(10) unsigned</td><td>YES</td><td></td><td>200</td><td></td></tr><tr><td>unidade</td><td>varchar(10)</td><td>YES</td><td></td><td></td><td></td></tr><tr><td>sigla</td><td>varchar(3)</td><td>YES</td><td></td><td></td><td></td></tr><tr><td>fabricante</td><td>varchar(50)</td><td>NO</td><td></td><td></td><td></td></tr><tr><td>datacompra</td><td>date</td><td>NO</td><td></td><td></td><td></td></tr></table>