sivabisani

 Profile Answers by sivabisani 

• Nov 14th, 2008

 

As per my knowledge, both words are same.

Level span is used to eliminate duplicates in data, in Cognos it is used
repeat grouped item. Using level span we can see the grouped data group by
group.
For example, when country and city are both grouped, you can choose to show the
country name each time .
-- the country changes, by spanning Country by Country
-- the city changes, by spanning Country by City
-- there is a new record, by specifying no spanning
Spanning one grouped column by another column is helpful if the second
column contains many items.
Steps
Open the report that you want.
Click the column for which you want to set the group span.
In the Properties pane, click the Group Span property and click the
column you want to span.

Thanks,
Siva

viramitraval

 Profile Answers by viramitraval 

• Mar 26th, 2009

 

Let us discus about Group span first.

for Example,
In List Report when you have product line, product type & product name as a query item. You've product line & product type grouped, Ok?
Now you want to span product line as per product type(i.e. you want product line to repeat whenever new product type is listed beside it). You can click on product line & change the Goup span property to product type. This gives you the proper result.
Now you want to span product line as per product name(i.e. you want product line to repeat whenever new product name is listed beside it). In this case you have to first group the product name query item then & then you can change Group span property of the product line to product name. Because Group span property lists the query items which are grouped in the list.

Lets discus about Level span now.

for Example,
In CrossTab Report when you have product line as parent node in row, product type as child node of product line & product name as child node of product type.
Now you want to span product line as per product type(i.e. you want product line to repeat whenever new product type is listed beside it). You dont have Group span property in CrossTab, Ok? Here you can do some trick which is called Level span. You can add one more product type as child to product type & then cut product line from CrossTab. Then select Parent product type & change Source Type property to Data Item Value & Data Item Value property to product line. Now run the report you can see the product line level repeats whenever new product type is listed beside it. This is called a Level Span.

Remember one more thing you can not do same kind of Level Span using dimensional model. You can do Level Span using relational model only...

freaky_priscilla

 Profile Answers by freaky_priscilla 

• Jul 21st, 2009

 

As far as I know, level span was in Cognos 1.1 and Cognos 8 had Group Span. I thought they had the same functionality, and it was just renamed for whatever reason.  Please correct me if i am wrong!

kiran_tsa

 Profile Answers by kiran_tsa 

• Jul 22nd, 2009

 

Level span is there in Report Net 1.1 and Group span is there from in 8.x. Both will work same if you want to repeat a grouped item with respect to change the nested data item under it. But, rather than level span, group span is simple to operate and we can change the level spanning for any no. of columns easily.