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<refentry id="SQL-CREATEGROUP">
 <refmeta>
  <refentrytitle id="sql-creategroup-title">CREATE GROUP</refentrytitle>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>
 <refnamediv>
  <refname>
   CREATE GROUP
  </refname>
  <refpurpose>
   define a new user group
  </refpurpose>
 </refnamediv>
 <refsynopsisdiv>
  <refsynopsisdivinfo>
   <date>2000-01-14</date>
  </refsynopsisdivinfo>
  <synopsis>
CREATE GROUP <replaceable class="PARAMETER">name</replaceable> [ [ WITH ] <replaceable class="PARAMETER">option</replaceable> [ ... ] ]

where <replaceable class="PARAMETER">option</replaceable> can be:

     SYSID <replaceable class="PARAMETER">gid</replaceable>
   | USER  <replaceable class="PARAMETER">username</replaceable> [, ...]
  </synopsis>
  
  <refsect2 id="R2-SQL-CREATEGROUP-1">
   <refsect2info>
    <date>2000-01-14</date>
   </refsect2info>
   <title>
    Inputs
   </title>
   <para>

    <variablelist>
     <varlistentry>
      <term><replaceable class="parameter">name</replaceable></term>
      <listitem>
       <para>
	The name of the group.
       </para>
      </listitem>
     </varlistentry>

     <varlistentry>
      <term><replaceable class="parameter">gid</replaceable></term>
      <listitem>
       <para>
        The <literal>SYSID</literal> clause can be used to choose
        the <productname>PostgreSQL</productname> group id of the new
        group. It is not necessary to do so, however.
       </para>
       <para>
        If this is not specified, the highest assigned group id plus one,
        starting at 1, will be used as default.
       </para>
      </listitem>
     </varlistentry>

     <varlistentry>
      <term><replaceable class="parameter">username</replaceable></term>
      <listitem>
       <para>
        A list of users to include in the group. The users must already exist.
       </para>
      </listitem>
     </varlistentry>

    </variablelist>
   </para>
  </refsect2>
  
  <refsect2 id="R2-SQL-CREATEGROUP-2">
   <refsect2info>
    <date>2000-01-14</date>
   </refsect2info>
   <title>
    Outputs
   </title>

   <para>
    <variablelist>
     <varlistentry>
      <term><computeroutput>CREATE GROUP</computeroutput></term>
      <listitem>
       <para>
	Message returned if the command completes successfully.
       </para>
      </listitem>
     </varlistentry>
    </variablelist>
   </para>
  </refsect2>
 </refsynopsisdiv>

 <refsect1 id="R1-SQL-CREATEGROUP-1">
  <refsect1info>
   <date>2000-01-14</date>
  </refsect1info>
  <title>
   Description
  </title>
  <para>
   CREATE GROUP will create a new group in the database installation.
   Refer to the <citetitle>Administrator's Guide</citetitle> for information about using groups
   for authentication.
   You must be a database superuser to use this command.
  </para>
  <para>
   Use <xref linkend="SQL-ALTERGROUP" endterm="SQL-ALTERGROUP-title">
   to change a group's membership, and <xref linkend="SQL-DROPGROUP"
   endterm="SQL-DROPGROUP-title"> to remove a group.
  </para>  
 </refsect1> 
 <refsect1 id="R1-SQL-CREATEGROUP-2">
  <title>
   Usage
  </title>
  <para>
   Create an empty group:
<programlisting>
CREATE GROUP staff;
</programlisting>
  </para>

  <para>
   Create a group with members:
<programlisting>
CREATE GROUP marketing WITH USER jonathan, david;
</programlisting>
  </para>
 </refsect1>
 
 <refsect1 id="R1-SQL-CREATEGROUP-3">
  <title>
   Compatibility
  </title>
  
  <refsect2 id="R2-SQL-CREATEGROUP-4">
   <refsect2info>
    <date>2000-01-14</date>
   </refsect2info>
   <title>
    SQL92
   </title>

   <para>
    There is no <command>CREATE GROUP</command> statement in SQL92.
    Roles are similar in concept to groups.
   </para>
  </refsect2>
 </refsect1>
</refentry>

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