1.查看所有数据库容量大小
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select
table_schema
as
'数据库'
,
sum(table_rows)
as
'记录数'
,
sum(truncate(data_length/1024/1024, 2))
as
'数据容量(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;
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2.查看所有数据库各表容量大小
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select
table_schema
as
'数据库'
,
table_name
as
'表名'
,
table_rows
as
'记录数'
,
truncate(data_length/1024/1024, 2)
as
'数据容量(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;
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3.查看指定数据库容量大小
例：查看mysql库容量大小
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select
table_schema
as
'数据库'
,
sum(table_rows)
as
'记录数'
,
sum(truncate(data_length/1024/1024, 2))
as
'数据容量(MB)'
,
sum(truncate(index_length/1024/1024, 2))
as
'索引容量(MB)'
from
information_schema.tables
where
table_schema=
'mysql'
;
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4.查看指定数据库各表容量大小
例：查看mysql库各表容量大小
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select
table_schema
as
'数据库'
,
table_name
as
'表名'
,
table_rows
as
'记录数'
,
truncate(data_length/1024/1024, 2)
as
'数据容量(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;
|