Query returns basic statistics of numbers of columns in a database.
select [columns], [tables], CONVERT(DECIMAL(10,2),1.0*[columns]/[tables]) as average_column_count from ( select count(*) [columns], count(distinct schema_name(tab.schema_id) + tab.name) as [tables] from sys.tables as tab inner join sys.columns as col on tab.object_id = col.object_id ) q
- columns - total number of columns in a database
- tables - number of tables in a database
- average_column_count - average number of columns in a table in a database
- Query returns just one row