Query that returns tables with number of columns, ordered from the ones that have the most.

Query

select schema_name(tab.schema_id) + '.' + tab.name as [table], 
       count(*) as [columns]
   from sys.tables as tab
        inner join sys.columns as col
            on tab.object_id = col.object_id
group by schema_name(tab.schema_id), 
       tab.name
order by count(*) desc

Columns

• table - name of the table (with schema name)
• columns - number of columns in table

Rows

• One row represents one table in a database
• Scope of rows: all tables in a database
• Ordered by number of columns descending - from tables with the most columns

Sample results

Here is a statistic from tables in Dataedo repository. Quite a usual database.

And this, by comparison is a result from demo Microsoft Dynamics NAV database. As you can see it is considerably more complex.