create_table_as.sgml

关系型数据库 Postgresql 6.5.2

<refentry id="CREATETABLEAS">
 <refmeta>
  <refentrytitle>
   CREATE TABLE AS
  </refentrytitle>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>
 <refnamediv>
  <refname>
   CREATE TABLE AS
  </refname>
  <refpurpose>
   Creates a new table
  </refpurpose>
 </refnamediv>
 <refsynopsisdiv>
  <refsynopsisdivinfo>
   <date>1998-09-22</date>
  </refsynopsisdivinfo>
  <synopsis>
CREATE TABLE <replaceable>table</replaceable> [ (<replaceable>column</replaceable> [, ...] ) ]
     AS <replaceable>select_clause</replaceable>
  </synopsis>
  
  <refsect2>
   <refsect2info>
    <date>1998-09-22</date>
   </refsect2info>
   <title>
    Inputs
   </title>
   <para>
   
   <variablelist>
    <varlistentry>
     <term><replaceable>table</replaceable></term>
     <listitem>
      <para>
       The name of a new table to be created.
      </para>
     </listitem>
    </varlistentry>

     <varlistentry>
      <term><replaceable>column</replaceable></term>
      <listitem>
       <para>
	The name of a column. Multiple column names can be specified using
	a comma-delimited list of column names.
       </para>
      </listitem>
     </varlistentry>

     <varlistentry>
      <term><replaceable>select_clause</replaceable></term>
      <listitem>
       <para>
	A valid query statement. Refer to SELECT for a description of the
	allowed syntax.
       </para>
      </listitem>
     </varlistentry>
    </variablelist>
   </para>
  </refsect2>

  <refsect2>
   <refsect2info>
    <date>1998-09-22</date>
   </refsect2info>
   <title>
    Outputs
   </title>
   <para>
    Refer to <command>CREATE TABLE</command>
    and <command>SELECT</command> for a summary of possible output
    messages.
   </para>
  </refsect2>
 </refsynopsisdiv>
 
 <refsect1>
  <refsect1info>
   <date>1998-09-22</date>
  </refsect1info>
  <title>
   Description
  </title>
  <para>
   <command>CREATE TABLE AS</command> enables a table to be created from the contents of
   an existing table. It has functionality equivalent to <command>SELECT TABLE INTO</command>,
   but with perhaps a more direct syntax.
  </para>
 </refsect1>
</refentry>

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