如何查找Sql服務器表中選定行的大小？

Question

我需要找到Sql server表中選定行的大小。 注意：我有Sql Server 2012。

Answer 1

One way is to look at the sys.dm_db_index_physical_stats output. 

的min_record_size_in_bytes，max_record_size_in_bytes和avg_record_size_in_bytes會給你你想要的大小。

If you want to see the size of a particular record, another way is to find the physical row location, see 

SQL Server 2008: New (undocumented) physical row locator function.

然後，您可以轉儲行物理結構，看到記錄的剖析。