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Full Discussion: Adding results up
Top Forums UNIX for Beginners Questions & Answers Adding results up Post 302994895 by rbatte1 on Wednesday 29th of March 2017 09:24:23 AM
Old 03-29-2017
You have two main choices:-

Adding another line into your SQL, you could try
Code:
select count(*), state from pg_stat_activity group by state;
select count(*) from pg_stat_activity;
\q

If you need to get the value into the script, you could have a follow up script with just the one line like this
Code:
select count(*) from pg_stat_activity;

then call it as a subshell so the output ends up in a variable, e.g.
Code:
total_recs=$(psql ............)



I hope that this helps,
Robin
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Class::DBI::Search::Basic(3pm)				User Contributed Perl Documentation			    Class::DBI::Search::Basic(3pm)

NAME
Class::DBI::Search::Basic - Simple Class::DBI search SYNOPSIS
my $searcher = Class::DBI::Search::Basic->new( $cdbi_class, @search_args ); my @results = $searcher->run_search; # Over in your Class::DBI subclass: __PACKAGE__->add_searcher( search => "Class::DBI::Search::Basic", isearch => "Class::DBI::Search::Plugin::CaseInsensitive", ); DESCRIPTION
This is the start of a pluggable Search infrastructure for Class::DBI. At the minute Class::DBI::Search::Basic doubles up as both the default search within Class::DBI as well as the search base class. We will probably need to tease this apart more later and create an abstract base class for search plugins. METHODS
new my $searcher = Class::DBI::Search::Basic->new( $cdbi_class, @search_args ); A Searcher is created with the class to which the results will belong, and the arguments passed to the search call by the user. opt if (my $order = $self->opt('order_by')) { ... } The arguments passed to search may contain an options hash. This will return the value of a given option. run_search my @results = $searcher->run_search; my $iterator = $searcher->run_search; Actually run the search. SUBCLASSING
sql / bind / fragment The actual mechanics of generating the SQL and executing it split up into a variety of methods for you to override. run_search() is implemented as: return $cdbi->sth_to_objects($self->sql, $self->bind); Where sql() is $cdbi->sql_Retrieve($self->fragment); There are also a variety of private methods underneath this that could be overridden in a pinch, but if you need to do this I'd rather you let me know so that I can make them public, or at least so that I don't remove them from under your feet. perl v5.12.4 2011-08-10 Class::DBI::Search::Basic(3pm)
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