Find Size Of Tables In Database – SQL Server

When we are working with SQL Server databases, very often we will come across the problem of abnormal database size growth. In such a situation we need to get the size of tables in the database to identify the abnormal sized tables to figure out the cause of growth.

Here we will go through some of the easiest methods to get the size of all the tables in a database. This will help you to identify the tables with abnormal size.

1. Find Size Of Tables Using SSMS Standard Report

The easiest way to find the size of all the tables in a database is to use the SQL Server Management Studio’s (SSMS) standard report called Disk Usage by Table. To access the disk usage table:

  1. Login to SSMS.
  2. Right click the database.
  3. In the right-click menu go to Reports >> Standard Reports >> Disk Usage by Tables.

This standard report will give you the number of records in the table, reserved physical space in KB and it’s breakup.

SQL Server Find Size Of Tables 04

SQL Server Find Size Of Tables 05


This is another way to find the size of all the tables in a database and order them. we can use the SP_SPACEUSED system stored procedure along with the SP_MSForEachTable system stored procedure. As SP_MSForEachTable returns a result set for each table, we will use a temp table to insert the result set and finally return the table sizes from the temp table.

Create TABLE #TableSize (TableName VARCHAR(200),Rows VARCHAR(20),      
       Reserved VARCHAR(20),Data VARCHAR(20),index_size VARCHAR(20), 
       Unused VARCHAR(20))
exec sp_MSForEachTable 'Insert Into #TableSize Exec sp_spaceused [?]'
	TableName, CAST(Rows AS bigint) As Rows, 
	CONVERT(bigint,left(Reserved,len(reserved)-3)) As Size_In_KB 
	from #TableSize order by 3 desc
Drop Table #TableSize

SQL Server Find Size Of Tables 02

3. Using SYS.TABLES & SYS.Allocation_UNITS

Another method is to use sys.tables, sys.partitions and sys.allocation_units system tables.

    t.NAME AS TableName,
    SUM(a.total_pages) * 8 AS TotalSpaceKB, 
    SUM(a.used_pages) * 8 AS UsedSpaceKB, 
    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
    sys.tables t
    sys.partitions p ON t.object_id = p.OBJECT_ID
    sys.allocation_units a ON p.partition_id = a.container_id
    TotalSpaceKB Desc

SQL Server Find Size Of Tables 03


Related Articles & Tools

Leave your thoughts...