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diff --git a/doc/src/sgml/html/manage-ag-createdb.html b/doc/src/sgml/html/manage-ag-createdb.html new file mode 100644 index 0000000..21bf672 --- /dev/null +++ b/doc/src/sgml/html/manage-ag-createdb.html @@ -0,0 +1,73 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!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>23.2. Creating a Database</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 Vsnapshot" /><link rel="prev" href="manage-ag-overview.html" title="23.1. Overview" /><link rel="next" href="manage-ag-templatedbs.html" title="23.3. Template Databases" /></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">23.2. Creating a Database</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="manage-ag-overview.html" title="23.1. Overview">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="managing-databases.html" title="Chapter 23. Managing Databases">Up</a></td><th width="60%" align="center">Chapter 23. Managing Databases</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="manage-ag-templatedbs.html" title="23.3. Template Databases">Next</a></td></tr></table><hr></hr></div><div class="sect1" id="MANAGE-AG-CREATEDB"><div class="titlepage"><div><div><h2 class="title" style="clear: both">23.2. Creating a Database</h2></div></div></div><a id="id-1.6.10.5.2" class="indexterm"></a><p> + In order to create a database, the <span class="productname">PostgreSQL</span> + server must be up and running (see <a class="xref" href="server-start.html" title="19.3. Starting the Database Server">Section 19.3</a>). + </p><p> + Databases are created with the SQL command + <a class="xref" href="sql-createdatabase.html" title="CREATE DATABASE"><span class="refentrytitle">CREATE DATABASE</span></a>: +</p><pre class="synopsis"> +CREATE DATABASE <em class="replaceable"><code>name</code></em>; +</pre><p> + where <em class="replaceable"><code>name</code></em> follows the usual rules for + <acronym class="acronym">SQL</acronym> identifiers. The current role automatically + becomes the owner of the new database. It is the privilege of the + owner of a database to remove it later (which also removes all + the objects in it, even if they have a different owner). + </p><p> + The creation of databases is a restricted operation. See <a class="xref" href="role-attributes.html" title="22.2. Role Attributes">Section 22.2</a> for how to grant permission. + </p><p> + Since you need to be connected to the database server in order to + execute the <code class="command">CREATE DATABASE</code> command, the + question remains how the <span class="emphasis"><em>first</em></span> database at any given + site can be created. The first database is always created by the + <code class="command">initdb</code> command when the data storage area is + initialized. (See <a class="xref" href="creating-cluster.html" title="19.2. Creating a Database Cluster">Section 19.2</a>.) This + database is called + <code class="literal">postgres</code>.<a id="id-1.6.10.5.6.6" class="indexterm"></a> So to + create the first <span class="quote">“<span class="quote">ordinary</span>”</span> database you can connect to + <code class="literal">postgres</code>. + </p><p> + A second database, + <code class="literal">template1</code>,<a id="id-1.6.10.5.7.2" class="indexterm"></a> + is also created during database cluster initialization. Whenever a + new database is created within the + cluster, <code class="literal">template1</code> is essentially cloned. + This means that any changes you make in <code class="literal">template1</code> are + propagated to all subsequently created databases. Because of this, + avoid creating objects in <code class="literal">template1</code> unless you want them + propagated to every newly created database. More details + appear in <a class="xref" href="manage-ag-templatedbs.html" title="23.3. Template Databases">Section 23.3</a>. + </p><p> + As a convenience, there is a program you can + execute from the shell to create new databases, + <code class="command">createdb</code>.<a id="id-1.6.10.5.8.2" class="indexterm"></a> + +</p><pre class="synopsis"> +createdb <em class="replaceable"><code>dbname</code></em> +</pre><p> + + <code class="command">createdb</code> does no magic. It connects to the <code class="literal">postgres</code> + database and issues the <code class="command">CREATE DATABASE</code> command, + exactly as described above. + The <a class="xref" href="app-createdb.html" title="createdb"><span class="refentrytitle"><span class="application">createdb</span></span></a> reference page contains the invocation + details. Note that <code class="command">createdb</code> without any arguments will create + a database with the current user name. + </p><div class="note"><h3 class="title">Note</h3><p> + <a class="xref" href="client-authentication.html" title="Chapter 21. Client Authentication">Chapter 21</a> contains information about + how to restrict who can connect to a given database. + </p></div><p> + Sometimes you want to create a database for someone else, and have them + become the owner of the new database, so they can + configure and manage it themselves. To achieve that, use one of the + following commands: +</p><pre class="programlisting"> +CREATE DATABASE <em class="replaceable"><code>dbname</code></em> OWNER <em class="replaceable"><code>rolename</code></em>; +</pre><p> + from the SQL environment, or: +</p><pre class="programlisting"> +createdb -O <em class="replaceable"><code>rolename</code></em> <em class="replaceable"><code>dbname</code></em> +</pre><p> + from the shell. + Only the superuser is allowed to create a database for + someone else (that is, for a role you are not a member of). + </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="manage-ag-overview.html" title="23.1. Overview">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="managing-databases.html" title="Chapter 23. Managing Databases">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="manage-ag-templatedbs.html" title="23.3. Template Databases">Next</a></td></tr><tr><td width="40%" align="left" valign="top">23.1. Overview </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 14.5 Documentation">Home</a></td><td width="40%" align="right" valign="top"> 23.3. Template Databases</td></tr></table></div></body></html>
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