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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>2.4. Populating a Table With Rows</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets V1.79.1" /><link rel="prev" href="tutorial-table.html" title="2.3. Creating a New Table" /><link rel="next" href="tutorial-select.html" title="2.5. Querying a Table" /></head><body id="docContent" class="container-fluid col-10"><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">2.4. Populating a Table With Rows</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="tutorial-table.html" title="2.3. Creating a New Table">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="tutorial-sql.html" title="Chapter 2. The SQL Language">Up</a></td><th width="60%" align="center">Chapter 2. The <acronym xmlns="http://www.w3.org/1999/xhtml" class="acronym">SQL</acronym> Language</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="tutorial-select.html" title="2.5. Querying a Table">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="TUTORIAL-POPULATE"><div class="titlepage"><div><div><h2 class="title" style="clear: both">2.4. Populating a Table With Rows</h2></div></div></div><a id="id-1.4.4.5.2" class="indexterm"></a><p>
+    The <code class="command">INSERT</code> statement is used to populate a table  with
+    rows:
+
+</p><pre class="programlisting">
+INSERT INTO weather VALUES ('San Francisco', 46, 50, 0.25, '1994-11-27');
+</pre><p>
+
+    Note that all data types use rather obvious input formats.
+    Constants that are not simple numeric values usually must be
+    surrounded by single quotes (<code class="literal">'</code>), as in the example.
+    The
+    <code class="type">date</code> type is actually quite flexible in what it
+    accepts, but for this tutorial we will stick to the unambiguous
+    format shown here.
+   </p><p>
+    The <code class="type">point</code> type requires a coordinate pair as input,
+    as shown here:
+</p><pre class="programlisting">
+INSERT INTO cities VALUES ('San Francisco', '(-194.0, 53.0)');
+</pre><p>
+   </p><p>
+    The syntax used so far requires you to remember the order of the
+    columns.  An alternative syntax allows you to list the columns
+    explicitly:
+</p><pre class="programlisting">
+INSERT INTO weather (city, temp_lo, temp_hi, prcp, date)
+    VALUES ('San Francisco', 43, 57, 0.0, '1994-11-29');
+</pre><p>
+    You can list the columns in a different order if you wish or
+    even omit some columns, e.g., if the precipitation is unknown:
+</p><pre class="programlisting">
+INSERT INTO weather (date, city, temp_hi, temp_lo)
+    VALUES ('1994-11-29', 'Hayward', 54, 37);
+</pre><p>
+    Many developers consider explicitly listing the columns better
+    style than relying on the order implicitly.
+   </p><p>
+    Please enter all the commands shown above so you have some data to
+    work with in the following sections.
+   </p><p>
+    <a id="id-1.4.4.5.7.1" class="indexterm"></a>
+
+    You could also have used <code class="command">COPY</code> to load large
+    amounts of data from flat-text files.  This is usually faster
+    because the <code class="command">COPY</code> command is optimized for this
+    application while allowing less flexibility than
+    <code class="command">INSERT</code>.  An example would be:
+
+</p><pre class="programlisting">
+COPY weather FROM '/home/user/weather.txt';
+</pre><p>
+
+    where the file name for the source file must be available on the
+    machine running the backend process, not the client, since the backend process
+    reads the file directly.  You can read more about the
+    <code class="command">COPY</code> command in <a class="xref" href="sql-copy.html" title="COPY"><span class="refentrytitle">COPY</span></a>.
+   </p></div><div xmlns="http://www.w3.org/TR/xhtml1/transitional" class="navfooter"><hr></hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="tutorial-table.html" title="2.3. Creating a New Table">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="tutorial-sql.html" title="Chapter 2. The SQL Language">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="tutorial-select.html" title="2.5. Querying a Table">Next</a></td></tr><tr><td width="40%" align="left" valign="top">2.3. Creating a New Table </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 13.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 2.5. Querying a Table</td></tr></table></div></body></html>
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