mysql show size of tables in database code example

Example 1: mysql get table size

SELECT
  TABLE_NAME AS `Table`,
  ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024) AS `Size (MB)`
FROM
  information_schema.TABLES
WHERE
  TABLE_SCHEMA = "bookstore"
ORDER BY
  (DATA_LENGTH + INDEX_LENGTH)
DESC;

Example 2: check size table

SELECT pg_size_pretty( pg_total_relation_size('tablename') );
(postgres)