Database principle experiment test questions, about book classification table

Book classification table booktype, There is a book classification number bookid, Book classification name bookname
The press table publish, There is a publishing house number pubid, Publisher name pubname, Address pubadress, city pubcity, contact number pubphone
Book inventory table book, Book number bid, Of books isbn, The name of the book bname, Book classification number bookid,
Book author bauthor, Publication date pubdate, Inventory bnum, Price bprice, Publishing House No pubid
1、 Delete stock book table
2、 Inquire about “ Higher Education Press ” Details of .
3、 Statistics “ Economy ” The number of books in stock .
4、 take book The data type of price attribute in the table is determined by float Type to integer .
5、 towards booktype Table inserts a Book Classification record information （’f105’,’ Architecture ’）
6、 take “ Simulation and optimization of mechanical structure design ” The inventory of books is changed to 90.
7、 Delete “ Machinery ” Classification information of books .
8、 Query all books isbn Number , Book title and author information , And press the query result isbn Number to sort .
9、 Count the inventory of books of different categories , The query result shows the book classification number and the corresponding book quantity .
10、 establish “ Economy ” Book view jingji_book, And ask to pass the view .