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>DROP TABLE</H1
><DIV
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><A
NAME="AEN62229"
></A
><H2
>Name</H2
>DROP TABLE -- remove a table</DIV
><A
NAME="AEN62232"
></A
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN62234"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>DROP TABLE [ IF EXISTS ] <TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
> [, ...] [ CASCADE | RESTRICT ]</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62237"
></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
><DIV
CLASS="REFSECT1"
><A
NAME="AEN62247"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><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="AEN62270"
></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="AEN62276"
></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
CLASS="REFSECT1"
><A
NAME="AEN62281"
></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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>
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