SQL Bulk Exchange Dedecms article source and author

In front of a modified dedecms the default article source "Unknown" to the keyword, that is, the article "source" after the revision will become their own set of keywords, if the changes have been a lot of articles, those articles "source" still show "Unknown", How do I bulk replace dedecms article sources and authors? This can be accomplished with the following SQL statement:

12	UPDATE dede_archives SET  writer=‘康爱‘WHERE writer=‘admin‘;UPDATE dede_archives SET  source=‘康爱眼科‘WHERE source=‘‘;

Publish the article writer by default with admin, document source from source default is empty

SQL Bulk Exchange Dedecms article source and author