ul></li>
<li>A domain can be used to avoid repeating too many constraints, especially check constraints
<ul>
<li><code>create domain score as integer check(score &gt;= 0 and score &lt;= 100)</code></li>
</ul></li>
</ul>
<h3 id="assertions">Assertions</h3>
<ul>
<li>General constraints that can apply to more than 1 row of a table or to columns of more than 1 table</li>
<li>Like more general check constraints that are not limited to only 1 row</li>
<li>Most DBMSs do not have full assertion support, even no ass