查看mysql數據表的大小

select
table_schema as '數據庫',
table_name as '表名',
table_rows as '記錄數',
truncate(data_length/1024/1024, 2) as '數據容量(MB)',
truncate(index_length/1024/1024, 2) as '索引容量(MB)'
from information_schema.tables
where table_schema='spider_2020' and table_name = 'spider_72_ggzy_zrzyb_content';

其中是spider_2020數據庫，spider_72_ggzy_zrzyb_content是數據表名稱

 

mysql壓縮數據表命令

alter table spider_72_ggzy_zrzyb_content KEY_BLOCK_SIZE=8;

alter table spider_72_ggzy_zrzyb_content row_format=COMPRESSED;

其中 spider_72_ggzy_zrzyb_content 是數據表名稱，壓縮率在60%左右，10G文件，壓縮后還剩6G