📅  最后修改于: 2022-03-11 15:05:14.884000             🧑  作者: Mango
代码示例1
SELECT bk1.book_name,bk1.isbn_no,bk1.book_price,bk1.pub_lang
FROM book_mast bk1
LEFT JOIN book_mast bk2 ON bk1.book_price