1998-09-07 17:53:12 +02:00
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<REFENTRY ID="SQL-DROPINDEX">
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<REFMETA>
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<REFENTRYTITLE>
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DROP INDEX
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</REFENTRYTITLE>
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<REFMISCINFO>SQL - Language Statements</REFMISCINFO>
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</REFMETA>
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<REFNAMEDIV>
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<REFNAME>
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DROP INDEX
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</REFNAME>
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<REFPURPOSE>
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Removes an index from a database
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</REFPURPOSE>
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<REFSYNOPSISDIV>
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<REFSYNOPSISDIVINFO>
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<DATE>1998-04-15</DATE>
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</REFSYNOPSISDIVINFO>
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<SYNOPSIS>
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1998-09-22 17:48:03 +02:00
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DROP INDEX <REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE>
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1998-09-07 17:53:12 +02:00
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</SYNOPSIS>
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<REFSECT2 ID="R2-SQL-DROPINDEX-1">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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Inputs
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</TITLE>
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<PARA>
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</PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<ReturnValue><REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE></ReturnValue>
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</TERM>
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<LISTITEM>
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<PARA>
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The name of the index to remove.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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</variablelist>
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</REFSECT2>
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<REFSECT2 ID="R2-SQL-DROPINDEX-2">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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Outputs
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</TITLE>
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<PARA>
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<VARIABLELIST>
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<VARLISTENTRY>
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<TERM>
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<ReturnValue>DROP</ReturnValue>
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</TERM>
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<LISTITEM>
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<PARA>
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The message returned if the index is successfully dropped.
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</PARA>
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</LISTITEM>
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</VARLISTENTRY>
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<VARLISTENTRY>
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<TERM>
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<ReturnValue>ERROR: index "<REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE>" nonexistent</ReturnValue>
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</TERM>
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<LISTITEM>
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<PARA>
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1998-09-22 17:48:03 +02:00
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This message occurs if <REPLACEABLE CLASS="PARAMETER">index_name</REPLACEABLE>
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1998-09-16 16:43:12 +02:00
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is not an index in the database.
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1998-10-30 20:34:40 +01:00
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1998-09-07 17:53:12 +02:00
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</VARIABLELIST>
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</REFSECT2>
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</REFSYNOPSISDIV>
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<REFSECT1 ID="R1-SQL-DROPINDEX-1">
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<REFSECT1INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT1INFO>
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<TITLE>
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Description
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</TITLE>
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<PARA>
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<command>DROP INDEX</command> drops an existing index from the database
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system. To execute this command you must be the owner of
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the index.
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</PARA>
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<REFSECT2 ID="R2-SQL-DROPINDEX-3">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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Notes
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</TITLE>
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<PARA>
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1998-09-22 17:48:03 +02:00
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<command>DROP INDEX</command> is a <productname>Postgres</productname>
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language extension.
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1998-09-07 17:53:12 +02:00
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</PARA>
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<PARA>
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Refer to the <command>CREATE INDEX</command> statement for
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1998-09-22 17:48:03 +02:00
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information on how to create indexes.
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1998-09-07 17:53:12 +02:00
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</PARA>
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</REFSECT2>
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<REFSECT1 ID="R1-SQL-DROPINDEX-2">
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<TITLE>
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Usage
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</TITLE>
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<PARA>
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This command will remove the <literal>title_idx</literal> index:
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</PARA>
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<ProgramListing>
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1998-09-22 17:48:03 +02:00
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DROP INDEX title_idx;
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1998-09-07 17:53:12 +02:00
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</ProgramListing>
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</REFSECT1>
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<REFSECT1 ID="R1-SQL-DROPINDEX-3">
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<TITLE>
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Compatibility
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</TITLE>
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<PARA>
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</PARA>
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<REFSECT2 ID="R2-SQL-DROPINDEX-4">
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<REFSECT2INFO>
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<DATE>1998-04-15</DATE>
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</REFSECT2INFO>
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<TITLE>
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SQL92
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</TITLE>
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<PARA>
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1998-09-22 17:48:03 +02:00
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<acronym>SQL92</acronym> defines commands by which to access
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a generic relational database.
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Indexes are an implementation-dependent feature and hence
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there are no index-specific commands or definitions in the
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<acronym>SQL92</acronym> language.
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1998-09-07 17:53:12 +02:00
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</PARA>
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</refsect2>
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</refsect1>
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</REFENTRY>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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