SQL Server 查看所有表大小、表行数和占用空间信息

可以通过以下 SQL 查询语句查看 SQL Server 数据库中所有表的大小、行数和占用空间信息：

SELECT 
    t.NAME AS TableName,
    i.name as indexName,
    sum(p.rows) as RowCounts,
    sum(a.total_pages) as TotalPages, 
    sum(a.used_pages) as UsedPages, 
    sum(a.data_pages) as DataPages,
    (sum(a.total_pages) * 8) / 1024 as TotalSpaceMB, 
    (sum(a.used_pages) * 8) / 1024 as UsedSpaceMB, 
    (sum(a.data_pages) * 8) / 1024 as DataSpaceMB
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
WHERE 
    t.NAME NOT LIKE 'dt%' 
    AND t.is_ms_shipped = 0
    AND i.OBJECT_ID > 255 
GROUP BY 
    t.NAME, i.object_id, i.name 
ORDER BY 
    TotalSpaceMB DESC

这个查询语句会返回每个表的名称、索引名称、行数、总页数、已使用页数、数据页数，以及总空间、已使用空间和数据空间的大小（以 MB 为单位）等信息。