Postgres database sizes

How to get the size of the database in postgresql

SELECT pg_size_pretty( pg_database_size('dbname') );

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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;

Source: stackoverflow.com

Find size of all DB's postgres

CopySELECT pg_database.datname as "database_name", pg_database_size(pg_database.datname)/1024/1024 AS size_in_mb FROM pg_database ORDER by size_in_mb DESC;

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