pgloader/docs/_build/html/tutorial/dBase.html
Dimitri Fontaine 25c79dfebc Switch the documentation to using Sphinx.
The website is moving to pgloader.org and readthedocs.io is going to be
integrated. Let's see what happens. The docs build fine locally with the
sphinx tools and the docs/Makefile.

Having separate files for the documentation should help ease the maintenance
and add new topics, such as support for Common Lisp Hackers level docs,
which are currently missing.
2017-12-21 17:45:09 +01:00

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<title>Loading dBase files with pgloader &#8212; pgloader 3.4.1 documentation</title>
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<div class="section" id="loading-dbase-files-with-pgloader">
<h1>Loading dBase files with pgloader<a class="headerlink" href="#loading-dbase-files-with-pgloader" title="Permalink to this headline"></a></h1>
<p>The dBase format is still in use in some places as modern tools such as
<em>Filemaker</em> and <em>Excel</em> offer some level of support for it. Speaking of
support in modern tools, pgloader is right there on the list too!</p>
<div class="section" id="the-command">
<h2>The Command<a class="headerlink" href="#the-command" title="Permalink to this headline"></a></h2>
<p>To load data with [pgloader](<a class="reference external" href="http://pgloader.io/">http://pgloader.io/</a>) you need to define in a
<em>command</em> the operations in some details. Heres our example for loading a
dBase file, using a file provided by the french administration.</p>
<p>You can find more files from them at the <a class="reference external" href="http://www.insee.fr/fr/methodes/nomenclatures/cog/telechargement.asp">Insee</a>
website.</p>
<p>Heres our command:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">LOAD</span> <span class="n">DBF</span>
<span class="n">FROM</span> <span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="n">www</span><span class="o">.</span><span class="n">insee</span><span class="o">.</span><span class="n">fr</span><span class="o">/</span><span class="n">fr</span><span class="o">/</span><span class="n">methodes</span><span class="o">/</span><span class="n">nomenclatures</span><span class="o">/</span><span class="n">cog</span><span class="o">/</span><span class="n">telechargement</span><span class="o">/</span><span class="mi">2013</span><span class="o">/</span><span class="n">dbf</span><span class="o">/</span><span class="n">historiq2013</span><span class="o">.</span><span class="n">zip</span>
<span class="n">INTO</span> <span class="n">postgresql</span><span class="p">:</span><span class="o">///</span><span class="n">pgloader</span>
<span class="n">WITH</span> <span class="n">truncate</span><span class="p">,</span> <span class="n">create</span> <span class="n">table</span>
<span class="n">SET</span> <span class="n">client_encoding</span> <span class="n">TO</span> <span class="s1">&#39;latin1&#39;</span><span class="p">;</span>
</pre></div>
</div>
<p>Note that here pgloader will benefit from the meta-data information found in
the dBase file to create a PostgreSQL table capable of hosting the data as
described, then load the data.</p>
</div>
<div class="section" id="loading-the-data">
<h2>Loading the data<a class="headerlink" href="#loading-the-data" title="Permalink to this headline"></a></h2>
<p>Lets start the <cite>pgloader</cite> command with our <cite>dbf-zip.load</cite> command file:</p>
<div class="highlight-default"><div class="highlight"><pre><span></span>$ pgloader dbf-zip.load
... LOG Starting pgloader, log system is ready.
... LOG Parsing commands from file &quot;/Users/dim/dev/pgloader/test/dbf-zip.load&quot;
... LOG Fetching &#39;http://www.insee.fr/fr/methodes/nomenclatures/cog/telechargement/2013/dbf/historiq2013.zip&#39;
... LOG Extracting files from archive &#39;//private/var/folders/w7/9n8v8pw54t1gngfff0lj16040000gn/T/pgloader//historiq2013.zip&#39;
table name read imported errors time
----------------- --------- --------- --------- --------------
download 0 0 0 0.167s
extract 0 0 0 1.010s
create, truncate 0 0 0 0.071s
----------------- --------- --------- --------- --------------
historiq2013 9181 9181 0 0.658s
----------------- --------- --------- --------- --------------
Total import time 9181 9181 0 1.906s
</pre></div>
</div>
<p>We can see that <a class="reference external" href="http://pgloader.io">pgloader</a> did download the file from
its HTTP URL location then <em>unziped</em> it before the loading itself.</p>
<p>Note that the output of the command has been edited to facilitate its
browsing online.</p>
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