09-17-2007
Quote:
Originally Posted by
mjays
but in the code above @contents isn't defined.
It is implicitly created for you. In this case, it is an array with no elements inside. You can always put
@contents = ();
at the top of the script to make your intent specific (I usually do this), but it is not required.
To explicitly declare it as a lexical is in fact a better practice, so that becomes
my @contents = ();
As for your posted program, it is a very simple one (I think you have stated it yourself). If you have any specific queries, feel free to follow-up.
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LEARN ABOUT SUSE
drop_foreign_data_wrapper
DROP FOREIGN DATA
WRAPPER(7) SQL Commands DROP FOREIGN DATA WRAPPER(7)
NAME
DROP FOREIGN DATA WRAPPER - remove a foreign-data wrapper
SYNOPSIS
DROP FOREIGN DATA WRAPPER [ IF EXISTS ] name [ CASCADE | RESTRICT ]
DESCRIPTION
DROP FOREIGN DATA WRAPPER removes an existing foreign-data wrapper. To execute this command, the current user must be the owner of the for-
eign-data wrapper.
PARAMETERS
IF EXISTS
Do not throw an error if the foreign-data wrapper does not exist. A notice is issued in this case.
name The name of an existing foreign-data wrapper.
CASCADE
Automatically drop objects that depend on the foreign-data wrapper (such as servers).
RESTRICT
Refuse to drop the foreign-data wrappers if any objects depend on it. This is the default.
EXAMPLES
Drop the foreign-data wrapper dbi:
DROP FOREIGN DATA WRAPPER dbi;
COMPATIBILITY
DROP FOREIGN DATA WRAPPER conforms to ISO/IEC 9075-9 (SQL/MED). The IF EXISTS clause is a PostgreSQL extension.
SEE ALSO
CREATE FOREIGN DATA WRAPPER [create_foreign_data_wrapper(7)], ALTER FOREIGN DATA WRAPPER [alter_foreign_data_wrapper(7)]
SQL - Language Statements 2010-05-14 DROP FOREIGN DATA WRAPPER(7)