select * from information_schema.TABLES
where information_schema.TABLES.TABLE_SCHEMA='databasename'
and information_schema.TABLES.TABLE_NAME='tablename'\G
返回结果:
*************************** 1. row ***************************
TABLE_CATALOG: def
TABLE_SCHEMA: databasename
TABLE_NAME: tablename
TABLE_TYPE: BASE TABLE
ENGINE: MyISAM
VERSION: 10
ROW_FORMAT: Dynamic
TABLE_ROWS: 6422930
AVG_ROW_LENGTH: 213
DATA_LENGTH: 1370884700
MAX_DATA_LENGTH: 281474976710655
INDEX_LENGTH: 412930048
DATA_FREE: 0
AUTO_INCREMENT: 6422931
CREATE_TIME: 2012-05-11 05:00:02
UPDATE_TIME: 2012-05-22 15:12:06
CHECK_TIME: 2012-05-11 09:58:52
TABLE_COLLATION: utf8_general_ci
CHECKSUM: NULL
CREATE_OPTIONS:
TABLE_COMMENT: 'table comment'
1 row in set (0.00 sec)
其中:
information_schema.TABLES.TABLE_SCHEMA = ‘databasename’ and information_schema.TABLES.TABLE_NAME = ‘tablename’
信息存储在information_schema.TABLES这个表中,TABLE_SCHEMA 对应数据库名,TABLE_NAME 对应表名。
# TABLE_ROWS 代表拥有的数据行数。
# 总大小 = DATA_LENGTH(数据大小) + INDEX_LENGTH(索引大小)
结果以字节为单位,除1024为K,除1048576(=1024*1024)为M。
--本篇文章转自:http://digdeeply.org/archives/05222029.html