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Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux	RedHat 6.2 (Zoot)
	drop_index(l)

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DROP_INDEX

NAME
SYNOPSIS
DESCRIPTION
USAGE
COMPATIBILITY

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NAME

DROP INDEX − Removes an index from a database

SYNOPSIS

DROP INDEX index_name

INPUTS
index_name

The name of the index to remove.

OUTPUTS

DROP

The message returned if the index is successfully dropped.

ERROR: index "index_name" nonexistent

This message occurs if index_name is not an index in the database.

DESCRIPTION

DROP INDEX drops an existing index from the database system. To execute this command you must be the owner of the index.

NOTES
DROP INDEX is a Postgres language extension.

Refer to create_index(l) for information on how to create indexes.

USAGE

This command will remove the title_idx index:

DROP INDEX title_idx;

COMPATIBILITY

SQL92
SQL92 defines commands by which to access a generic relational database. Indexes are an implementation-dependent feature and hence there are no index-specific commands or definitions in the SQL92 language.

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drop_index(l)