select table_schema as '数据库', table_name as '表名', table_rows as '记录数', truncate(data_length/1024/1024, 2) as '数据容量(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数据库,spider_72_ggzy_zrzyb_content是数据表名称
mysql压缩数据表命令
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 是数据表名称,压缩率在60%左右,10G文件,压缩后还剩6G