Difference between is_published and is_merge_published in Sql Server? What is the difference between the columns is_published and is_merge_published in Sql Server  ? 

I can't find docs describing it !

SELECT [name],[is_published],[is_merge_published] FROM sys.databases ;
As per the comments, you are referring to the columns in sys.databases

As per SQL Server Docs


  is_published  bit 
  
  1 = Database is a publication database in a
  transactional or snapshot replication topology 
  
  0 = Is not a publication database
  
  is_merge_published    bit 
  
  1 = Database is a publication database in a
  merge replication topology 
  
  0 = Is not a publication database in a
  merge replication topology