How to get the size of each table in the database?

Question

Through a query, how can I get the disk space that the tables (in a database) are occupying?

I can list all tables using sys.tables, but, and the size?

SELECT NAME AS NomeTabela FROM sys.tables

Answer 1

Reference: SQL Server: list size and record number of all tables

SELECT
    t.NAME AS Entidade,
    p.rows AS Registros,
    SUM(a.total_pages) * 8 AS EspacoTotalKB,
    SUM(a.used_pages) * 8 AS EspacoUsadoKB,
    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS EspacoNaoUsadoKB
FROM
    sys.tables t
INNER JOIN
    sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN
    sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN
    sys.allocation_units a ON p.partition_id = a.container_id
LEFT OUTER JOIN
    sys.schemas s ON t.schema_id = s.schema_id
WHERE
    t.NAME NOT LIKE 'dt%'
    AND t.is_ms_shipped = 0
    AND i.OBJECT_ID > 255
GROUP BY
    t.Name, s.Name, p.Rows
ORDER BY
    Registros DESC

also reply Soen - Get size of all Tables in database

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A another way is with the command sp_spaceused:

_{Observing: SQL Server version greater than or equal to 2012.}

sp_msforeachtable 'EXEC sp_spaceused [?]'

thus also bringing part of the index size.

Reference: sp_spaceused (Transact-SQL)

Answer 2

In the Technet Gallery there are several scripts on how to get table size.

For visual analysis, the simplest way is

-- código #1
execute sp_MSforeachtable 'execute sp_spaceused [?]'