Update rows on to tables in mysql

Question

I need to update the rows of two tables (song & words).

How can I do it using the same query? Here's my first update:

string query2 = "Update myproject.song set house_number = '" + first.Length + "';";

Answer 1

MySQL permits you to multiple tables as shown here: MySQL update syntax documentation

UPDATE song,artist SET song.title=a,artist.song_count=b
WHERE artist.id=song.artist_id;

In this example, song, and artist are the two tables with rows, title and song_count respectively. The WHERE clause ensures that this is being done based on your criteria

Answer 2

You wouldn't update two tables at the same time. Try updating song, then using the primary key of song to update the correct row in words.