Sophie: postgresql8.3-docs-8.3.6-2mdv2008.1 x86

postgresql8.3-docs-8.3.6-2mdv2008.1.x86_64.rpm

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><H1
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>DROP TABLE</H1
><DIV
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><A
NAME="AEN56948"
></A
><H2
>Name</H2
>DROP TABLE&nbsp;--&nbsp;remove a table</DIV
><A
NAME="AEN56951"
></A
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN56953"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DROP TABLE [ IF EXISTS ] <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> [, ...] [ CASCADE | RESTRICT ]</PRE
></DIV
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><A
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></A
><H2
>Description</H2
><P
>   <TT
CLASS="COMMAND"
>DROP TABLE</TT
> removes tables from the database.
   Only its owner can drop a table.  To empty a table of rows
   without destroying the table, use <A
HREF="sql-delete.html"
><I
>DELETE</I
></A
> or <A
HREF="sql-truncate.html"
><I
>TRUNCATE</I
></A
>.
  </P
><P
>   <TT
CLASS="COMMAND"
>DROP TABLE</TT
> always removes any indexes, rules,
   triggers, and constraints that exist for the target table.
   However, to drop a table that is referenced by a view or a foreign-key
   constraint of another table, <TT
CLASS="LITERAL"
>CASCADE</TT
> must be
   specified. (<TT
CLASS="LITERAL"
>CASCADE</TT
> will remove a dependent view entirely,
   but in the foreign-key case it will only remove the foreign-key
   constraint, not the other table entirely.)
  </P
></DIV
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><A
NAME="AEN56966"
></A
><H2
>Parameters</H2
><P
></P
><DIV
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><DL
><DT
><TT
CLASS="LITERAL"
>IF EXISTS</TT
></DT
><DD
><P
>      Do not throw an error if the table does not exist. A notice is issued 
      in this case.
     </P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></DT
><DD
><P
>      The name (optionally schema-qualified) of the table to drop.
     </P
></DD
><DT
><TT
CLASS="LITERAL"
>CASCADE</TT
></DT
><DD
><P
>      Automatically drop objects that depend on the table (such as
      views).
     </P
></DD
><DT
><TT
CLASS="LITERAL"
>RESTRICT</TT
></DT
><DD
><P
>      Refuse to drop the table if any objects depend on it.  This is
      the default.
     </P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN56989"
></A
><H2
>Examples</H2
><P
>   To destroy two tables, <TT
CLASS="LITERAL"
>films</TT
> and 
   <TT
CLASS="LITERAL"
>distributors</TT
>:

</P><PRE
CLASS="PROGRAMLISTING"
>DROP TABLE films, distributors;</PRE
><P>
  </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN56995"
></A
><H2
>Compatibility</H2
><P
>   This command conforms to the SQL standard, except that the standard only
   allows one table to be dropped per command, and apart from the 
   <TT
CLASS="LITERAL"
>IF EXISTS</TT
> option, which is a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> 
   extension.
  </P
></DIV
><DIV
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><A
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></A
><H2
>See Also</H2
><A
HREF="sql-altertable.html"
><I
>ALTER TABLE</I
></A
>, <A
HREF="sql-createtable.html"
><I
>CREATE TABLE</I
></A
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