My sql join
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This document contains 3 SQL queries. The first query uses a join between two tables to return the tutorial ID, author, and count for each tutorial by joining on the author field. The second query uses an inner join to return the book ID, name, and category description by joining the book and category tables on the category ID field. The third query performs the same inner join as the second but uses the USING clause to specify the join column.
My sql join
- 4. This will produce same result :: SELECT tutorials_tbl.tutorial_id , tutorials_tbl.tutorial_author , tcount_tbl.tutorial_count FROM tutorials_tbl, tcount_tbl WHERE tutorials_tbl.tutorial_author = tcount_tbl. tutorial_author;
- 7. SELECT book_mast.book_id, book_mast.book_name, category.cate_descrip FROM book_mast INNER JOIN category ON book_mast.cate_id = category.cate_id ;
- 8. SELECT book_id, book_name, cate_descrip FROM book_mast INNER JOIN category USING(cate_id);