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This article mainly explains "how to view mysql data size SQL", the article explains the content is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "how to view mysql data size SQL" bar!

1. View the data volume and index size of each table in the database specified by mysql SQL:

Select TABLE_NAME, concat (truncate (data_length/1024/1024/1024,4), 'GB') as data_size, concat (truncate (index_length/1024/1024/1024,2),' GB') as index_size,table_rowsfrom information_schema.tables where TABLE_SCHEMA = 'dmall_batman'group by TABLE_NAMEorder by data_length desc

2. Check the data volume and index size of each database in mysql SQL:

Select TABLE_SCHEMA, concat (truncate (sum (data_length) / 1024 sum 1024), 'GB') as data_size, concat (truncate (sum (index_length) / 1024 pound 1024),' GB') as index_size from information_schema.tables group by TABLE_SCHEMA order by data_length desc

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