unix and linux operating commands

Filtering and Grouping: A Comparison of SQL, Linux Scripting, and Ruby


 
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Old 09-11-2008
Filtering and Grouping: A Comparison of SQL, Linux Scripting, and Ruby

Learn some of the transferable concepts common to Oracle SQL, Linux commands, and scripting to address problems that involve data sets that need to be grouped, sorted, and filtered.

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SQL::Translator::Schema::View(3pm)			User Contributed Perl Documentation			SQL::Translator::Schema::View(3pm)

NAME
SQL::Translator::Schema::View - SQL::Translator view object SYNOPSIS
use SQL::Translator::Schema::View; my $view = SQL::Translator::Schema::View->new( name => 'foo', # name, required sql => 'select id, name from foo', # SQL for view fields => 'id, name', # field names in view ); DESCRIPTION
"SQL::Translator::Schema::View" is the view object. METHODS
new Object constructor. my $view = SQL::Translator::Schema::View->new; fields Gets and set the fields the constraint is on. Accepts a string, list or arrayref; returns an array or array reference. Will unique the field names and keep them in order by the first occurrence of a field name. $view->fields('id'); $view->fields('id', 'name'); $view->fields( 'id, name' ); $view->fields( [ 'id', 'name' ] ); $view->fields( qw[ id name ] ); my @fields = $view->fields; tables Gets and set the tables the SELECT mentions. Accepts a string, list or arrayref; returns an array or array reference. Will unique the table names and keep them in order by the first occurrence of a field name. $view->tables('foo'); $view->tables('foo', 'bar'); $view->tables( 'foo, bar' ); $view->tables( [ 'foo', 'bar' ] ); $view->tables( qw[ foo bar ] ); my @tables = $view->tables; options Gets and sets a list of options on the view. $view->options('ALGORITHM=UNDEFINED'); my @options = $view->options; is_valid Determine whether the view is valid or not. my $ok = $view->is_valid; name Get or set the view's name. my $name = $view->name('foo'); order Get or set the view's order. my $order = $view->order(3); sql Get or set the view's SQL. my $sql = $view->sql('select * from foo'); schema Get or set the view's schema object. $view->schema( $schema ); my $schema = $view->schema; equals Determines if this view is the same as another my $isIdentical = $view1->equals( $view2 ); AUTHOR
Ken Youens-Clark <kclark@cpan.org>. perl v5.14.2 2012-05-01 SQL::Translator::Schema::View(3pm)