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Dirpath is a string that represents the path to the directory,
Dirnames is a list that contains the names of all subdirectories under Dirpath.
Filenames is a list that contains the name of a non-directory file.
These names do not contain path information, and you need to use Os.path.join (Dirpath, name) if you need to get the full path.

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To view the capacity size of a table
mysql> use INFORMATION_SCHEMA;
Select Data_length,index_length
From tables where
Table_schema= ' Test '
and table_name = ' test_table ';

#字节转MB
Select Concat (Round (sum (data_length/1024/1024), 2), ' MB ') as DATA_SIZE_MB,
Concat (Round (sum (index_length/1024/1024), 2), ' MB ') as INDEX_SIZE_MB
From tables where
Table_schema= ' Test '
and table_name = ' test_table ';

To view the capacity size of a library
Select Table_schema, concat (Truncate (SUM (data_length)/1024/1024,2), ' MB ') as Data_size,
Concat (Truncate (SUM (index_length)/1024/1024,2), ' MB ') as Index_size
From Information_schema.tables
GROUP BY Table_schema
ORDER BY data_length Desc;

Color 38 Full Repair operation version +h5 Adaptive mobile version