如果我们只想查询特定表的大小,可以使用以下SQL语句: SELECTtable_nameAS`Table`,round(((data_length+index_length)/1024/1024),2)`Size in MB`FROMinformation_schema.tablesWHEREtable_schema='your_database_name'ANDtable_name='your_table_name'; 1. 2. 3. 4. 5. 这段SQL语句会返回指定表的名称及其...
1、查看每个库中表的大小,按大小排序 注意:表占用空间大小,包括数据和索引 SELECTtable_schemaas`Database`, table_nameAS`Table`,round(((data_length+index_length)/1024/1024),2) `SizeinMB`FROMinformation_schema.TABLESORDERBY(data_length+index_length)DESC; 查询结果 2、查看某个特定的库中,表的大小 ...
类图 Developer- name: string- skill: string+teachHowToModifyTableSize() : void 旅行图 journey title 修改MySQL数据表大小 section 连接到MySQL数据库 Developer->MySQL: 连接到MySQL数据库 section 选择要修改的数据库 Developer->MySQL: USE my_database; section 修改表的大小 Developer->MySQL: ALTER TABLE...
Replace database_name with the name of the database that you want to check: CopySELECT table_name AS "Table", ROUND(((data_length + index_length) / 1024 / 1024), 2) AS "Size (MB)" FROM information_schema.TABLES WHERE table_schema = "database_name" ORDER BY (data_length + index...
SELECT table_name AS `Table`, round(((data_length + index_length) / 1024 / 1024), 2) `Size in MB` FROM information_schema.TABLES WHERE table_schema = 'your_database_name' ORDER BY (data_length + index_length) DESC; 复制代码 在上面的查询中,将your_database_name替换为要查看表大小的...
SELECTCONCAT(ROUND(SUM(DATA_LENGTH/1024/1024),2),'M')FROMtablesWHEREtable_schema='database_name'ANDtable_name='table_name'; --- 注:获取结果是字节单位,转换为M单位。 mysql中information_schema数据库,存储数据库元数据,包括数据库信息、数据库中表的信息等。 schemata...
SELECT TABLE_SCHEMA AS `Database`, TABLE_NAME AS `Table`, ROUND((DATA_LENGTH + INDEX_LENGTH) / 1024 / 1024, 2) AS `Size (MB)` FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'your_database_name' ORDER BY (DATA_LENGTH + INDEX_LENGTH) DESC; ...
ROUND((data_length + index_length) / 1024 / 1024, 2) AS 'Total Size in MB' FROM information_schema.TABLES WHERE table_schema = 'your_database_name' AND table_name = 'your_table_name'; 方法二:使用INFORMATION_SCHEMA数据库 INFORMATION_SCHEMA数据库存放了其他所有数据库的信息,可以通过查询该库...
要查看MySQL数据库的大小,可以使用以下命令: SELECT table_schema "Database Name", SUM(data_length + index_length) / 1024 / 1024 "Database Size (MB)" FROM information_schema.tables GROUP BY table_schema; 复制代码 这条SQL语句将返回每个数据库的大小(以MB为单位)。您可以在MySQL客户端或phpMyAdmin...
ROUND(((data_length + index_length) / 1024 / 1024), 2) AS 'Size (MB)' FROM information_schema.tables WHERE table_schema = 'database_name' ORDER BY (data_length + index_length) DESC; 这个查询语句会返回一个结果集,其中包含了指定数据库中每个表的名称和大小。通过将结果按大小排序,我们可以...