Added: incubator/drill/site/trunk/content/drill/overview.html URL: http://svn.apache.org/viewvc/incubator/drill/site/trunk/content/drill/overview.html?rev=1616976&view=auto ============================================================================== --- incubator/drill/site/trunk/content/drill/overview.html (added) +++ incubator/drill/site/trunk/content/drill/overview.html Sat Aug 9 16:02:08 2014 @@ -0,0 +1,117 @@ +<!doctype html> +<html> + + <head> + <meta charset="UTF-8"> + <title>Apache Drill - Overview</title> + + <link href="css/style.css" rel="stylesheet" type="text/css"> + <link href="css/arrows.css" rel="stylesheet" type="text/css"> + <link href="css/button.css" rel="stylesheet" type="text/css"> + + <script language="javascript" type="text/javascript" src="js/lib/jquery-1.11.1.min.js"></script> + <script language="javascript" type="text/javascript" src="js/lib/jquery.easing.1.3.js"></script> + <script language="javascript" type="text/javascript" src="js/modernizr.custom.js"></script> + <script language="javascript" type="text/javascript" src="js/script.js"></script> + + </head> + + <body onResize="resized();"> + + <div class="bui"></div> + + <div id="search"> + <input type="text" placeholder="Enter search term here"> + </div> + + <div id="menu" class="mw"> + + <ul> + <li class="logo"><a href="/drill/index.html"></a></li> + + <li> + <a href="https://cwiki.apache.org/confluence/display/DRILL/Apache+Drill+Wiki" target="_blank">Documentation</a> + <ul> +<li><a href="overview.html">Overview</a></li> + <li><a href="https://cwiki.apache.org/confluence/display/DRILL/Apache+Drill+in+10+Minutes" target="_blank">Drill in 10 minutes</a></li> + <li><a href="https://cwiki.apache.org/confluence/display/DRILL/Connecting+to+Data+Sources#ConnectingtoDataSources-QueryingaFileSystem" target="_blank">Query Files</a></li> + <li><a href="https://cwiki.apache.org/confluence/display/DRILL/Connecting+to+Data+Sources#ConnectingtoDataSources-QueryingHBaseTables" target="_blank">Query HBase</a></li> + <li><a href="https://cwiki.apache.org/confluence/display/DRILL/Connecting+to+Data+Sources#ConnectingtoDataSources-QueryingHiveTables" target="_blank">Query Hive</a></li> + <li><a href="https://cwiki.apache.org/confluence/display/DRILL/SQL+Overview" target="_blank">SQL Support</a></li> + <li><a href="architecture.html">Architecture</a></li> + </ul> + </li> + <li> + <a href="community.html">Community</a> + <ul> + <li><a href="community.html#events">Events and Meetups</a></li> + <li><a href="community.html#mailinglists">Mailing Lists</a></li> + <li><a href="community.html#getinvolved">Get Involved</a></li> + <li><a href="https://issues.apache.org/jira/browse/DRILL/" target="_blank">Issue Tracker</a></li> + <li><a href="https://github.com/apache/incubator-drill" target="_blank">Github</a></li> + </ul> + </li> + <li><a href="faq.html" target="_blank">FAQ</a></li> + + <li class="l"><span> </span></li> + <li class="d"><a href="download.html">Download</a></li> + </ul> + + </div> + + <div class="int_title"> + <h1>Overview</h1> + </div> + + <div class="int_text" align="center"> + + <a name="events" class="anchor"></a> + <h2>Understanding a Drill Query</h2> + + <p>Drill provides intuitive and familiar semantics to perform self-service data exploration. Here is a quick look at a Drill query. </p> + <img src="images/overview-img1.png" width="580" alt=""> + <p>All you need is to write regular ANSI SQL queries, and point to the right location of the data source. Drill takes care of the rest for you - no schema definitions or complex ETL required. </p> + <p>Here are some examples of Drill queries:</p> + + <div align="left"> + Querying a directory in File system: +<pre> +SELECT errorLevel, count(*) +FROM dfs.logs.`/AppServerLogs` +GROUP BY errorLevel; +</pre> + + + Querying an Hbase table without creating any Hive metastore entries +<pre> +SELECT cf1.month, cf1.year +FROM hbase.table1; +</pre> + + Querying nested data within an HBase table +<pre> +SELECT profile.name, profile.children +FROM ( + SELECT CONVERT_FROM(cf1.profileBlob, 'json') AS profile + FROM hbase.users +)</pre> + + </div> + + <p>Click <a href="https://cwiki.apache.org/confluence/display/DRILL/Apache+Drill+in+10+Minutes" target="_new">here</a> to run Drill queries all by yourself in less than 10 mins. </p> + + </div> + + <div id="footer" class="mw"> + <div class="wrapper"> + Copyright © 2012-2014 The Apache Software Foundation, licensed under the Apache License, Version 2.0.<br> +Apache Incubator, Apache, and the Apache feather logo are trademarks of The Apache Software Foundation. Other names appearing on the site may be trademarks of their respective owners.<br> + <br> + <strong>DISCLAIMER</strong><br> +Apache Drill is an effort undergoing incubation at The Apache Software Foundation sponsored by the Apache Incubator PMC. Incubation is required of all newly accepted projects until a further<br> +review indicates that the infrastructure, communications, and decision making process have stabilized in a manner consistent with other successful ASF projects. While incubation status is not<br>necessarily a reflection of the completeness or stability of the code, it does indicate that the project has yet to be fully endorsed by the ASF. + </div> + </div> + + </body> +</html>
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