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<REFENTRY ID="SQL-DROPTABLE">
<REFMETA>
<REFENTRYTITLE>
DROP TABLE
</REFENTRYTITLE>
<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
</REFMETA>
<REFNAMEDIV>
<REFNAME>
DROP TABLE
</REFNAME>
<REFPURPOSE>
Removes existing tables from a database
</REFPURPOSE>
<REFSYNOPSISDIV>
<REFSYNOPSISDIVINFO>
<DATE>1998-04-15</DATE>
</REFSYNOPSISDIVINFO>
<SYNOPSIS>
DROP TABLE <REPLACEABLE CLASS="PARAMETER">table</REPLACEABLE> [, ...]
</SYNOPSIS>
<REFSECT2 ID="R2-SQL-DROPTABLE-1">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Inputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue><REPLACEABLE CLASS="PARAMETER">table</REPLACEABLE></ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The name of an existing table or view to drop.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
<REFSECT2 ID="R2-SQL-DROPTABLE-2">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Outputs
</TITLE>
<PARA>
</PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
</TERM>
<LISTITEM>
<PARA>
<VARIABLELIST>
<VARLISTENTRY>
<TERM>
<ReturnValue>DROP</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
The message returned if the command completes successfully.
</PARA>
</LISTITEM>
</VARLISTENTRY>
<VARLISTENTRY>
<TERM>
<ReturnValue> ERROR Relation "<replaceable class="parameter">table</replaceable>" Does Not Exist!</ReturnValue>
</TERM>
<LISTITEM>
<PARA>
If table/view specified doesn't exist into database.
</PARA>
</LISTITEM>
</VARLISTENTRY>
</variablelist>
</LISTITEM>
</VARLISTENTRY>
</VARIABLELIST>
</REFSECT2>
</REFSYNOPSISDIV>
<REFSECT1 ID="R1-SQL-DROPTABLE-1">
<REFSECT1INFO>
<DATE>1998-04-15</DATE>
</REFSECT1INFO>
<TITLE>
Description
</TITLE>
<PARA><command>
</command>DROP TABLE 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 DELETE.
</PARA>
<PARA>
If a table being destroyed has secondary indices on it,
they will be removed first. The removal of just a
secondary index will not affect the indexed table.
</PARA>
<REFSECT2 ID="R2-SQL-DROPTABLE-3">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
Notes
</TITLE>
<PARA>
Refer to the <command>CREATE TABLE</command> and
<command>ALTER TABLE</command> statements for information on
how to create or modify tables.
</PARA>
</REFSECT2>
</refsect1>
<REFSECT1 ID="R1-SQL-DROPTABLE-2">
<TITLE>
Usage
</TITLE>
<PARA>
To destroy the <literal>films</literal> and
<command>distributors</command> tables:
</PARA>
<ProgramListing>
DROP TABLE films, distributors
</ProgramListing>
</REFSECT1>
<REFSECT1 ID="R1-SQL-DROPTABLE-3">
<TITLE>
Compatibility
</TITLE>
<PARA>
</PARA>
<REFSECT2 ID="R2-SQL-DROPTABLE-4">
<REFSECT2INFO>
<DATE>1998-04-15</DATE>
</REFSECT2INFO>
<TITLE>
SQL92
</TITLE>
<PARA>
SQL92 specifies some additional capabilities for DROP TABLE:
</PARA>
<synopsis>
DROP TABLE <replaceable class="parameter">table</replaceable> { RESTRICT | CASCADE }
</synopsis>
<variablelist>
<varlistentry>
<term>RESTRICT</term>
<listitem>
<para>
Ensures that only a table with no dependent views or
integrity constraints can be destroyed.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>CASCADE</term>
<listitem>
<para>
Any referencing views or integrity constraints
will also be dropped.
</para>
</listitem>
</varlistentry>
</variablelist>
<tip>
<para>
At present, to remove a referenced view you must drop
it by hand.
</para>
</tip>
</refsect2>
</refsect1>
</REFENTRY>
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