查看數據庫日誌文件的大小mysql
show binary logs;sql
刪除bin-log(刪除mysql-bin.00000*小於mysql-bin.000003全部日誌)數據庫
purge binary logs to 'mysql-bin.000003';日誌
要想知道每一個數據庫的大小的話,步驟以下:orm
一、進入information_schema 數據庫(存放了其餘的數據庫的信息)io
use information_schema;table
二、查詢全部數據的大小:form
select concat(round(sum(data_length/1024/1024),2),'MB') as data from tables;
SELECT SUM(DATA_LENGTH)+SUM(INDEX_LENGTH) FROM information_schema.tablesselect
三、查看指定數據庫的大小:數據
好比查看數據庫radius的大小
select concat(round(sum(data_length/1024/1024),2),'MB') as data from tables where table_schema='radius';
四、查看指定數據庫的某個表的大小
好比查看數據庫radius中 rm_users 表的大小
select concat(round(sum(data_length/1024/1024),2),'MB') as data from tables where table_schema='radius' and table_name='rm_users';