With SQL server 2005 and higher version you can use ‘sp_spaceused’ to find space used by table in SQL Server.
Following is a syntax for that.
You can find more information about it from the following link.
When you run this in SQL Server, Its displays Number of Rows, disk space served and disk space used by a table or indexed view and also displays disk space reserved and used by database.
Here in the above example, You have seen that I have used to find space for employee table in my blog sample database and its providing information about rows, reserved space, data size, index_size space and unused space.
That’s it. Hope you like it. Stay tuned for more.