How use Catalog Description as page metadata description?

Question

i have e-commerce website
i have create multiple Catalogs in E-commerce menu  and each catalogs have no of product.
i have one template for whole catalogs
i want to display catalog description in template metadata description 
how can i do this?
Thanks & Regards
Manish

Answer 1

Max limit for identifier/column name is 128 character. What if the description is more than 128 character ?
However if the identifier or description is less than 129 then we can do it using dynamic query. Refer below,
declare @tablename varchar(100)='myTable'
declare @sqlstring varchar(max)
;with cte as (
select st.name [Table],sc.name [Column],sep.value [Description]
from sys.tables st
inner join sys.columns sc on st.object_id = sc.object_id
left join sys.extended_properties sep on st.object_id = sep.major_id
and sc.column_id = sep.minor_id
and sep.name = 'MS_Description'
), cte1 as (
select [Table],[Column],case
when [Description] is null then [Column]
else left(cast([Description] as varchar(200)),128) end as [Description]
from cte
select @sqlstring= Stuff((select ',[' + [Column] + '] as [' + [Description] + ']'
from cte1 where [Table] = @tablename
for xml path('')), 1, 1, '')
set @sqlstring = 'select ' + @sqlstring + ' from ' + @tablename
exec (@sqlstring)
Regards, RSingh