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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML
><HEAD
><TITLE
> DROP TABLE
</TITLE
><META
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><HR
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><H1
>DROP TABLE</H1
><DIV
CLASS="REFNAMEDIV"
><H2
>Name</H2
> DROP TABLE
— Removes existing tables from a database
</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><PRE
CLASS="SYNOPSIS"
>DROP TABLE <TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
> [, ...]
</PRE
><DIV
CLASS="REFSECT2"
><H3
> Inputs
</H3
><P
> </P
><P
></P
><DL
><DT
><SPAN
CLASS="RETURNVALUE"
><TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
></SPAN
></DT
><DD
><P
> The name of an existing table or view to drop.
</P
></DD
></DL
></DIV
><DIV
CLASS="REFSECT2"
><H3
> Outputs
</H3
><P
> <P
></P
></P><DL
><DT
><SPAN
CLASS="RETURNVALUE"
>DROP</SPAN
></DT
><DD
><P
> The message returned if the command completes successfully.
</P
></DD
><DT
><SPAN
CLASS="RETURNVALUE"
> ERROR Relation "<TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
>" Does Not Exist!</SPAN
></DT
><DD
><P
> If the specified table or view does not exist in the database.
</P
></DD
></DL
><P>
</P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><H2
> Description
</H2
><P
><B
CLASS="COMMAND"
>DROP TABLE</B
> removes tables and views from the database.
Only its owner may destroy a table or view. A table
may be emptied of rows, but not destroyed, by using <B
CLASS="COMMAND"
>DELETE</B
>.
</P
><P
> If a table being destroyed has secondary indexes on it,
they will be removed first. The removal of just a
secondary index will not affect the contents of the underlying table.
</P
><DIV
CLASS="REFSECT2"
><H3
> Notes
</H3
><P
> Refer to <B
CLASS="COMMAND"
>CREATE TABLE</B
> and
<B
CLASS="COMMAND"
>ALTER TABLE</B
> for information on
how to create or modify tables.
</P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><H2
> Usage
</H2
><P
> To destroy the <TT
CLASS="LITERAL"
>films</TT
> and
<B
CLASS="COMMAND"
>distributors</B
> tables:
</P
><PRE
CLASS="PROGRAMLISTING"
>DROP TABLE films, distributors
</PRE
></DIV
><DIV
CLASS="REFSECT1"
><H2
> Compatibility
</H2
><P
> </P
><DIV
CLASS="REFSECT2"
><H3
> SQL92
</H3
><P
> SQL92 specifies some additional capabilities for DROP TABLE:
</P
><PRE
CLASS="SYNOPSIS"
>DROP TABLE <TT
CLASS="REPLACEABLE"
><I
>table</I
></TT
> { RESTRICT | CASCADE }
</PRE
><P
></P
><DL
><DT
>RESTRICT</DT
><DD
><P
> Ensures that only a table with no dependent views or
integrity constraints can be destroyed.
</P
></DD
><DT
>CASCADE</DT
><DD
><P
> Any referencing views or integrity constraints
will also be dropped.
</P
></DD
></DL
><BLOCKQUOTE
CLASS="TIP"
><P
><B
>Tip: </B
> At present, to remove a referenced view you must drop
it explicitly.
</P
></BLOCKQUOTE
></DIV
></DIV
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><TD
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