/usr/share/doc/racket/datalog/index.html is in racket-doc 6.7-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"/><title>Datalog: Deductive Database Programming</title><link rel="stylesheet" type="text/css" href="../scribble.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-style.css" title="default"/><link rel="stylesheet" type="text/css" href="../manual-racket.css" title="default"/><link rel="stylesheet" type="text/css" href="../doc-site.css" title="default"/><script type="text/javascript" src="../scribble-common.js"></script><script type="text/javascript" src="../manual-racket.js"></script><script type="text/javascript" src="../doc-site.js"></script><script type="text/javascript" src="../local-redirect/local-redirect.js"></script><script type="text/javascript" src="../local-redirect/local-user-redirect.js"></script><!--[if IE 6]><style type="text/css">.SIEHidden { overflow: hidden; }</style><![endif]--></head><body id="doc-racket-lang-org"><div class="tocset"><div class="tocview"><div class="tocviewlist tocviewlisttopspace"><div class="tocviewtitle"><table cellspacing="0" cellpadding="0"><tr><td style="width: 1em;"><a href="javascript:void(0);" title="Expand/Collapse" class="tocviewtoggle" onclick="TocviewToggle(this,"tocview_0");">▼</a></td><td></td><td><a href="" class="tocviewselflink" data-pltdoc="x">Datalog:<span class="mywbr"> </span> Deductive Database Programming</a></td></tr></table></div><div class="tocviewsublistonly" style="display: block;" id="tocview_0"><table cellspacing="0" cellpadding="0"><tr><td align="right">1 </td><td><a href="datalog.html" class="tocviewlink" data-pltdoc="x">Datalog Module Language</a></td></tr><tr><td align="right">2 </td><td><a href="Tutorial.html" class="tocviewlink" data-pltdoc="x">Tutorial</a></td></tr><tr><td align="right">3 </td><td><a href="Parenthetical_Datalog_Module_Language.html" class="tocviewlink" data-pltdoc="x">Parenthetical Datalog Module Language</a></td></tr><tr><td align="right">4 </td><td><a href="interop.html" class="tocviewlink" data-pltdoc="x">Racket Interoperability</a></td></tr><tr><td align="right">5 </td><td><a href="Acknowledgments.html" class="tocviewlink" data-pltdoc="x">Acknowledgments</a></td></tr></table></div></div></div><div class="tocsub"><div class="tocsubtitle">On this page:</div><table class="tocsublist" cellspacing="0"><tr><td><span class="tocsublinknumber"></span><a href="#%28part._top%29" class="tocsubseclink" data-pltdoc="x">Datalog:<span class="mywbr"> </span> Deductive Database Programming</a></td></tr></table></div></div><div class="maincolumn"><div class="main"><div class="versionbox"><span class="version">6.7</span></div><div class="navsettop"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.7", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.7");">top</a></span><span class="navright"> <span class="nonavigation">← prev</span> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.7");">up</a> <a href="datalog.html" title="forward to "1 Datalog Module Language"" data-pltdoc="x">next →</a></span> </div><h2 x-source-module="(lib "datalog/scribblings/datalog.scrbl")" x-source-pkg="datalog" x-part-tag=""top""><a name="(part._top)"></a>Datalog: Deductive Database Programming</h2><div class="SAuthorListBox"><span class="SAuthorList"><p class="author">Jay McCarthy <<a href="mailto:jay@racket-lang.org">jay@racket-lang.org</a>></p></span></div><p><div class="SIntrapara"><a href="http://en.wikipedia.org/wiki/Datalog">Datalog</a> is
</div><div class="SIntrapara"><ul><li><p>a declarative logic language in which each
formula is a function-free Horn clause, and every variable
in the head of a clause must appear in the body of the clause.</p></li><li><p>a lightweight deductive database system where queries and database updates are expressed
in the logic language.</p></li></ul></div></p><p>The use of Datalog syntax and an implementation based
on tabling intermediate results ensures that all queries terminate.</p><table cellspacing="0" cellpadding="0"><tr><td><p><span class="hspace"> </span><a href="datalog.html" class="toptoclink" data-pltdoc="x">1<span class="hspace"> </span>Datalog Module Language</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace"> </span><a href="Tutorial.html" class="toptoclink" data-pltdoc="x">2<span class="hspace"> </span>Tutorial</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace"> </span><a href="Parenthetical_Datalog_Module_Language.html" class="toptoclink" data-pltdoc="x">3<span class="hspace"> </span>Parenthetical Datalog Module Language</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace"> </span><a href="interop.html" class="toptoclink" data-pltdoc="x">4<span class="hspace"> </span>Racket Interoperability</a></p></td></tr><tr><td><p><span class="hspace"></span></p></td></tr><tr><td><p><span class="hspace"> </span><a href="Acknowledgments.html" class="toptoclink" data-pltdoc="x">5<span class="hspace"> </span>Acknowledgments</a></p></td></tr></table><div class="navsetbottom"><span class="navleft"><form class="searchform"><input class="searchbox" style="color: #888;" type="text" value="...search manuals..." title="Enter a search string to search the manuals" onkeypress="return DoSearchKey(event, this, "6.7", "../");" onfocus="this.style.color="black"; this.style.textAlign="left"; if (this.value == "...search manuals...") this.value="";" onblur="if (this.value.match(/^ *$/)) { this.style.color="#888"; this.style.textAlign="center"; this.value="...search manuals..."; }"/></form> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.7");">top</a></span><span class="navright"> <span class="nonavigation">← prev</span> <a href="../index.html" title="up to the documentation top" data-pltdoc="x" onclick="return GotoPLTRoot("6.7");">up</a> <a href="datalog.html" title="forward to "1 Datalog Module Language"" data-pltdoc="x">next →</a></span> </div></div></div><div id="contextindicator"> </div></body></html>
|