在 SQL 中，如何将一整列从一个表复制到另一个没有任何相互列或值的表？

Question

i have two tables:
Movies which contains movies names (one single column 'movie')
Directors which contains directors names and IDs ('director' column and 'ID' column)
i just want to copy the whole 'director' column from the second table to the first table, no where conditions available as there are no mutual columns or values between the two tables, just copy/pasta thing, both tables are equal in rows and i just want them to aggregate together i tried many possible join/union/insert from select /update from select ways but none have worked (env is MS SQL server 2014)

Answer 1

If you want to assign arbitrary director's names to movies, you can use row_number() :

with toupdate as (
      select m.*, row_number() over (order by (select null)) as seqnum
      from movies m
     )
update toupdate
    set movie = d.director
    from (select d.*, row_number() over (order by (select null)) as seqnum
          from directors d
         ) d
    where m.seqnum = d.seqnum;

This seems like a very curious thing to do, but it is how I interpret your question.