SQL - How to get the Unique Key's Column Name from Table

Question

I know how to get the columns from a table using the following SQL statement:

SELECT COLUMN_NAME 
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE (TABLE_NAME = \'MYTA         


        

Answer 1

Something like this:

Select col.name From 
sys.objects obj 
Join sys.columns col on col.[object_id] = obj.[object_id]
Join sys.index_columns idx_cols on idx_cols.[column_id] = col.[column_id] and idx_cols.[object_id] = col.[object_id]
Join sys.indexes idx on idx_cols.[index_id] = idx.[index_id] and idx.[object_id] = col.[object_id]
where obj.name = 'MYTABLENAME'
and idx.is_unique = 1