SQL

how to get the size of the database in postgresql

SELECT pg_size_pretty( pg_database_size('dbname') );

postgres database sizes

/* For multiple databases */
select t1.datname AS db_name,  
       pg_size_pretty(pg_database_size(t1.datname)) as db_size
from pg_database t1
order by pg_database_size(t1.datname) desc;

postgresql size of database

SELECT pg_database_size('named_db');
SELECT pg_size_pretty(pg_database_size('named_db'));