mysql如何查询数据库容量信息

发布时间：2023-05-23 13:18:04 所属栏目：MySql教程来源：

导读：mysql查询数据库容量的方法：1、打开DOS窗口，然后进入mysql的bin目录下；2、执行“SELECT table_schema AS 'shujuku',table_name AS 'biaoming',table_rows AS 'jilushu',TRUNCATE (d

mysql查询数据库容量的方法：1、打开DOS窗口，然后进入mysql的bin目录下；2、执行“SELECT table_schema AS 'shujuku',table_name AS 'biaoming',table_rows AS 'jilushu',TRUNCATE (data_length / 1024 / 1024, 2) ...”语句即可查看所有数据库各表容量。

MySql查看数据库及表容量并排序查看所有数据库容量

SELECT
table_schema AS '数据库',
sum(table_rows) AS '记录数',
sum(
TRUNCATE (data_length / 1024 / 1024, 2)
) AS '数据容量(MB)',
sum(
TRUNCATE (index_length / 1024 / 1024, 2)
) AS '索引容量(MB)'
FROM
information_schema. TABLES
GROUP BY
table_schema
ORDER BY
sum(data_length) DESC,
sum(index_length) DESC;
查看所有数据库各表容量

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
ORDER BY
data_length DESC,
index_length DESC;
查看指定数据库容量

SELECT
table_schema AS '数据库',
sum(table_rows) AS '记录数',
sum(
TRUNCATE (data_length / 1024 / 1024, 2)
) AS '数据容量(MB)',
sum(
TRUNCATE (index_length / 1024 / 1024, 2)
) AS '索引容量(MB)'
FROM
information_schema.tables where table_schema = 'your_table_name';
查看指定数据库各表容量

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 = '指定的库名'
ORDER BY
data_length DESC,
index_length DESC;

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