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MySQL中怎么查看數據庫表容量大小,很多新手對此不是很清楚,為了幫助大家解決這個難題,下面小編將為大家詳細講解,有這方面需求的人可以來學習下,希望你能有所收獲。
1. 查看所有數據庫容量大小
SELECT table_schema AS '數據庫', sum( table_rows ) AS '記錄數', sum( TRUNCATE ( data_length / 1024 / 1024, 2 ) ) AS '數據容量(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. 查看所有數據庫各表容量大小
SELECT table_schema AS '數據庫', table_name AS '表名', table_rows AS '記錄數', TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '數據容量(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. 查看指定數據庫容量大小
SELECT table_schema AS '數據庫', sum( table_rows ) AS '記錄數', sum( TRUNCATE ( data_length / 1024 / 1024, 2 ) ) AS '數據容量(MB)', sum( TRUNCATE ( index_length / 1024 / 1024, 2 ) ) AS '索引容量(MB)' FROM information_schema.TABLES WHERE table_schema = 'mysql';
4. 查看指定數據庫各表容量大小
SELECT table_schema AS '數據庫', table_name AS '表名', table_rows AS '記錄數', TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '數據容量(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;
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