How to find the size of a table in SQL?

How to find the size of a table in SQL?

As a SQL developer or database administrator, it is essential to have a good understanding of the size of your database tables. Knowing the size of a table can help you optimize your database performance, plan for storage requirements, and troubleshoot issues related to database performance. In this blog post, we will guide you through the process of finding the size of a table in SQL.

Here’s how you can see the size table sizes for public schema

	table_schema = 'public'
	3 DESC;

See sizes of tables of all schemas:

	pg_size_pretty(table_size) AS size,
		pg_catalog.pg_namespace.nspname AS schema_name,
		pg_relation_size(pg_catalog.pg_class.oid) AS table_size
		JOIN pg_catalog.pg_namespace ON relnamespace = pg_catalog.pg_namespace.oid) t
	schema_name NOT LIKE 'pg_%'
	table_size DESC;


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