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create_conversion(7) [suse man page]

CREATE 
CONVERSION(7)						   SQL Commands 					      CREATE CONVERSION(7)

NAME

       CREATE CONVERSION - define a new encoding conversion

SYNOPSIS

       CREATE [ DEFAULT ] CONVERSION name
	   FOR source_encoding TO dest_encoding FROM funcname

DESCRIPTION

       CREATE CONVERSION defines a new conversion between character set encodings. Also, conversions that are marked DEFAULT can be used for auto-
       matic encoding conversion between client and server. For this purpose, two conversions, from encoding A to B and from encoding B to A, must
       be defined.

       To be able to create a conversion, you must have EXECUTE privilege on the function and CREATE privilege on the destination schema.

PARAMETERS

       DEFAULT
	      The DEFAULT clause indicates that this conversion is the default for this particular source to destination encoding. There should be
	      only one default encoding in a schema for the encoding pair.

       name   The name of the conversion. The conversion name can be schema-qualified. If it is not, the conversion  is  defined  in  the  current
	      schema. The conversion name must be unique within a schema.

       source_encoding
	      The source encoding name.

       dest_encoding
	      The destination encoding name.

       funcname
	      The function used to perform the conversion. The function name can be schema-qualified. If it is not, the function will be looked up
	      in the path.

	      The function must have the following signature:

	      conv_proc(
		  integer,  -- source encoding ID
		  integer,  -- destination encoding ID
		  cstring,  -- source string (null terminated C string)
		  internal, -- destination (fill with a null terminated C string)
		  integer   -- source string length
	      ) RETURNS void;

NOTES

       Use DROP CONVERSION to remove user-defined conversions.

       The privileges required to create a conversion might be changed in a future release.

EXAMPLES

       To create a conversion from encoding UTF8 to LATIN1 using myfunc:

       CREATE CONVERSION myconv FOR 'UTF8' TO 'LATIN1' FROM myfunc;

COMPATIBILITY

       CREATE CONVERSION is a PostgreSQL extension.  There is no CREATE CONVERSION statement in the SQL standard.

SEE ALSO

       ALTER CONVERSION [alter_conversion(7)], CREATE FUNCTION [create_function(7)], DROP CONVERSION [drop_conversion(7)]

SQL - Language Statements					    2010-05-14						      CREATE CONVERSION(7)

Check Out this Related Man Page

ALTER 
VIEW(7)							   SQL Commands 						     ALTER VIEW(7)

NAME

       ALTER VIEW - change the definition of a view

SYNOPSIS

       ALTER VIEW name ALTER [ COLUMN ] column SET DEFAULT expression
       ALTER VIEW name ALTER [ COLUMN ] column DROP DEFAULT
       ALTER VIEW name OWNER TO new_owner
       ALTER VIEW name RENAME TO new_name
       ALTER VIEW name SET SCHEMA new_schema

DESCRIPTION

       ALTER VIEW changes various auxiliary properties of a view. (If you want to modify the view's defining query, use CREATE OR REPLACE VIEW.)

       You  must  own the view to use ALTER VIEW.  To change a view's schema, you must also have CREATE privilege on the new schema.  To alter the
       owner, you must also be a direct or indirect member of the new owning role, and that role must have CREATE privilege on the view's  schema.
       (These  restrictions  enforce  that altering the owner doesn't do anything you couldn't do by dropping and recreating the view.	However, a
       superuser can alter ownership of any view anyway.)

PARAMETERS

       name   The name (optionally schema-qualified) of an existing view.

       SET/DROP DEFAULT
	      These forms set or remove the default value for a column.  A default value associated with a view column	is  inserted  into  INSERT
	      statements on the view before the view's ON INSERT rule is applied, if the INSERT does not specify a value for the column.

       new_owner
	      The user name of the new owner of the view.

       new_name
	      The new name for the view.

       new_schema
	      The new schema for the view.

NOTES

       For historical reasons, ALTER TABLE can be used with views too; but the only variants of ALTER TABLE that are allowed with views are equiv-
       alent to the ones shown above.

EXAMPLES

       To rename the view foo to bar:

       ALTER VIEW foo RENAME TO bar;

COMPATIBILITY

       ALTER VIEW is a PostgreSQL extension of the SQL standard.

SEE ALSO

       CREATE VIEW [create_view(7)], DROP VIEW [drop_view(7)]

SQL - Language Statements					    2010-05-14							     ALTER VIEW(7)
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