debian man page for dbix::simple::comparison

DBIx::Simple::Comparison(3pm)				User Contributed Perl Documentation			     DBIx::Simple::Comparison(3pm)

NAME
       DBIx::Simple::Comparison - DBIx::Simple in DBI jargon

DESCRIPTION
       This is just a simple and inaccurate overview of what DBI things the DBIx::Simple things represent, or the other way around.

       This document can be useful to find the foo equivalent of bar.

       "?" means that DBI doesn't have an equivalent or that I couldn't find one.

       "=" means that DBIx::Simple provides a direct wrapper to the DBI function.

       "~" means that DBIx::Simple's method does more or less the same, but usually in a more high level way: context sensitive, combining things,
       automatically taking care of something.

       Note that DBIx::Simple is a wrapper around DBI. It is not "better" than DBI. In fact, DBIx::Simple cannot work without DBI.

       Using DBI directly is always faster than using DBIx::Simple's equivalents. (For the computer, that is. For you, DBIx::Simple is supposed to
       be faster.)

   Classes, common names
	use DBI       ~  use DBIx::Simple

	$DBI::errstr  =  DBIx::Simple->error

	DBI::db       ~  DBIx::Simple
	$dbh	      ~  $db
	$dbh->errstr  =  $db->error

	connect       ~  connect
	connect       ~  new

	DBI::st       ~  DBIx::Simple::Result
	<undef>       ~  DBIx::Simple::Dummy
	$sth	      ~  $result

   Queries
       DBI

	my $sth = $dbh->prepare_cached($query);
	$sth->execute(@values);

       ~ DBIx::Simple

	my $result = $db->query($query, $values);

   Results
	DBI			     DBIx::Simple

	bind_columns		  ~  bind

	fetchrow_arrayref/fetch   =  fetch
	fetchrow_array		  ~  list
	*1			  ~  flat
	[@{fetchrow_arrayref}]	  =  array
	fetchall_arrayref	  ~  arrays
	fetchrow_hashref() *2*3   =  hash
	fetchall_arrayref({}) *4  ~  hashes

	fetchall_hashref *2	  =  map_hashes
	?			  ?  map_arrays
	fetchall_hashref(1) *2	  =  map

	$sth->{NAME_lc/NAME}	  =  $result->columns

       *1 There's no fetch variant, but you can do "{ @{ $dbh->selectcol_arrayref('SELECT ...', { Slice => [] }) } }".

       *2 To receive the keys (column names) lowercased, use "$db->{FetchHashKeyName} = 'NAME_lc'". DBIx::Simple lower cases them by default.

       *3 Or supply an argument, 'NAME_lc'.

       *4 No, arrayref isn't a typo. When supplied an empty hash reference, DBI's fetchall_arrayref actually returns hashrefs. This DBI method
       does not support lower casing of keys, DBIx::Simple does.

   Direct access
	DBI		    DBIx::Simple

	$dbh		 =  $db->dbh
	$sth->{$foo}	 =  $result->attr($foo)

	func		 =  func

	begin_work	 =  begin_work
	commit		 =  commit
	rollback	 =  rollback
	last_insert_id	 =  last_insert_id
	rows		 =  rows

	disconnect	 ~  disconnect
	finish		 ~  finish

   DBIx::Simple specific (?)
	keep_statements
	lc_columns
	iquery (via SQL::Interp)
	select, insert, update, delete (via SQL::Abstract)
	abstract (via SQL::Abstract)
	flat
	hashes
	map_arrays
	map

LICENSE
       There is no license. This software was released into the public domain. Do with it what you want, but on your own risk. The author
       disclaims any responsibility.

AUTHOR
       Juerd Waalboer <juerd@cpan.org> <http://juerd.nl/>

SEE ALSO
       DBI, DBIx::Simple

perl v5.10.0							    2007-07-14					     DBIx::Simple::Comparison(3pm)