truncate all table code example
Example 1: how to truncate all table in mysql workbench
SELECT
Concat('TRUNCATE TABLE ', TABLE_NAME)
FROM
INFORMATION_SCHEMA.TABLES
WHERE
table_schema = 'db_name';
Example 2: truncate all tables
SELECT Concat('TRUNCATE TABLE ',table_schema,'.',TABLE_NAME, ';')
FROM INFORMATION_SCHEMA.TABLES where table_schema in ('db1_name','db2_name');