一文看懂MySQL如何查看數(shù)據(jù)庫表容量大小
作者:波波說運維
今天主要介紹MySQL查看數(shù)據(jù)庫表容量大小的幾個方法,僅供參考。下面,我們一起來看。
今天主要介紹MySQL查看數(shù)據(jù)庫表容量大小的幾個方法,僅供參考。
1. 查看所有數(shù)據(jù)庫容量大小
- SELECT
- table_schema AS '數(shù)據(jù)庫',
- sum( table_rows ) AS '記錄數(shù)',
- sum( TRUNCATE ( data_length / 1024 / 1024, 2 ) ) AS '數(shù)據(jù)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;
2. 查看所有數(shù)據(jù)庫各表容量大小
- SELECT
- table_schema AS '數(shù)據(jù)庫',
- table_name AS '表名',
- table_rows AS '記錄數(shù)',
- TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '數(shù)據(jù)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;
3. 查看指定數(shù)據(jù)庫容量大小
- SELECT
- table_schema AS '數(shù)據(jù)庫',
- sum( table_rows ) AS '記錄數(shù)',
- sum( TRUNCATE ( data_length / 1024 / 1024, 2 ) ) AS '數(shù)據(jù)容量(MB)',
- sum( TRUNCATE ( index_length / 1024 / 1024, 2 ) ) AS '索引容量(MB)'
- FROM
- information_schema.TABLES
- WHERE
- table_schema = 'mysql';
4. 查看指定數(shù)據(jù)庫各表容量大小
- SELECT
- table_schema AS '數(shù)據(jù)庫',
- table_name AS '表名',
- table_rows AS '記錄數(shù)',
- TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '數(shù)據(jù)容量(MB)',
- TRUNCATE ( index_length / 1024 / 1024, 2 ) AS '索引容量(MB)'
- FROM
- information_schema.TABLES
- WHERE
- table_schema = 'mysql'
- ORDER BY
- data_length DESC,
- index_length DESC;
責任編輯:趙寧寧
來源:
今日頭條