检查mysql数据库巨细,怎么检查MySQL数据库巨细

要检查MySQL数据库的巨细，能够运用以下SQL查询句子：

```sqlSELECT table_schema AS 'Database', SUM AS 'Total Size ', SUM AS 'Data Size ', SUM AS 'Index Size ', SUM AS 'Free Space ', ROUND / 1024 / 1024, 2qwe2 AS 'Total Size ', ROUND / 1024 / 1024, 2qwe2 AS 'Data Size ', ROUND / 1024 / 1024, 2qwe2 AS 'Index Size ', ROUND / 1024 / 1024, 2qwe2 AS 'Free Space 'FROM information_schema.TABLESGROUP BY table_schema;```

这个查询会回来每个数据库的总巨细、数据巨细、索引巨细和闲暇空间，单位分别为字节和兆字节。你能够经过修正 `GROUP BY` 子句来只检查特定数据库的巨细。例如，假如你想检查名为 `my_database` 的数据库的巨细，能够将查询修正为：

```sqlSELECT table_schema AS 'Database', SUM AS 'Total Size ', SUM AS 'Data Size ', SUM AS 'Index Size ', SUM AS 'Free Space ', ROUND / 1024 / 1024, 2qwe2 AS 'Total Size ', ROUND / 1024 / 1024, 2qwe2 AS 'Data Size ', ROUND / 1024 / 1024, 2qwe2 AS 'Index Size ', ROUND / 1024 / 1024, 2qwe2 AS 'Free Space 'FROM information_schema.TABLESWHERE table_schema = 'my_database'GROUP BY table_schema;```

请依据你的具体需求修正查询句子。

深化解析：怎么检查MySQL数据库巨细

在数据库办理中，了解数据库的巨细关于功能优化、资源分配以及备份战略的制定都至关重要。本文将具体介绍怎么检查MySQL数据库的巨细，包含运用SQL查询、命令行东西以及图形化办理东西等多种办法。

要检查一个数据库的总巨细，能够运用以下SQL句子：

```sql

SELECT SUM(datalength indexlength) / 1024 / 1024 AS \