oracle - sql error ora-00933 sql command not properly ended delete -

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i try delete data 3 tables, using join. have error :

 sql error: ora-00933: sql command not ended     00933. 00000 -  "sql command not ended"

this query:

delete news join news_author on news_author.news_id=news.news_id join author  on news_author.author_id=author.author_id  news_id=16;

how can solve problem?

can try this..

delete news news ns join news_author na on na.news_id=ns.news_id join author ar on na.author_id=ar.author_id  news_id=16;

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