https://validator.w3.org

https://validator.w3.org/nu/?doc=http%3A%2F%2Fdev.mysql.com%2Fdoc%2Frefman%2F5.7%2Fen%2Fmanual-info.html

1. Error: Bad value up for attribute rel on element link: The string up is not a registered keyword.

   From line 24, column 1; to line 24, column 72

   tions" />↩<link rel="up" href="introduction.html" title="1 General Information" />↩↩   

   Syntax of list of link-type keywords:

   A whitespace-separated list of link types listed as allowed on <link> in the HTML specification or listed as an allowed on <link> on the Microformats wikiwithout duplicate keywords in the list. You can register link types on the Microformats wiki yourself.

2. Warning: The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.

   From line 547, column 19; to line 547, column 40

   s="title"><a name="manual-info"></a>1.

3. Warning: The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.

   From line 554, column 1; to line 554, column 47

   >↩↩</div>↩<a class="indexterm" name="idm140209603138384"></a><a

4. Warning: The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.

   From line 554, column 52; to line 554, column 98

   8384"></a><a class="indexterm" name="idm140209603137376"></a><p

5. Warning: The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.

   From line 579, column 9; to line 579, column 55

   .↩    </p><a class="indexterm" name="idm140209603130832"></a><a

6. Warning: The name attribute is obsolete. Consider putting an id attribute on the nearest container instead.

   From line 579, column 60; to line 579, column 106

   0832"></a><a class="indexterm" name="idm140209603129440"></a><p