• 2022-06-15 问题

    ‍查询图书名称含有“程序”的图书信息。语句如下:‌‍‌SELECT BookCode, BookName, Author, Price, Discount‌FROM Book‌WHERE BookName LIKE ________‌

    ‍查询图书名称含有“程序”的图书信息。语句如下:‌‍‌SELECT BookCode, BookName, Author, Price, Discount‌FROM Book‌WHERE BookName LIKE ________‌

  • 2021-04-14 问题

    BookStore数据库中有图书表 Book(BookCode, BookName, Author, PublisherCode, PublishTime,BookSort, ISBN, BookPicture, ContentInro, Price, Discount) 查询图书名称(BookName)含有“程序”的图书信息。SQL语句: SELECT BookCode,BookName,Author,Price,Discount FROM Book WHERE Name=“%程序%”

    BookStore数据库中有图书表 Book(BookCode, BookName, Author, PublisherCode, PublishTime,BookSort, ISBN, BookPicture, ContentInro, Price, Discount) 查询图书名称(BookName)含有“程序”的图书信息。SQL语句: SELECT BookCode,BookName,Author,Price,Discount FROM Book WHERE Name=“%程序%”

  • 2022-06-15 问题

    ‌查询作者名长度大于等于8的图书信息,显示书名(BookName)及作者(Author)。语句如下:‌‌‌SELECT BookName, Author‌FROM Book‌WHERE Len(Author)_________‌

    ‌查询作者名长度大于等于8的图书信息,显示书名(BookName)及作者(Author)。语句如下:‌‌‌SELECT BookName, Author‌FROM Book‌WHERE Len(Author)_________‌

  • 2021-04-14 问题

    BookStore数据库中有图书表 Book(BookCode, BookName, Author, PublisherCode, PublishTime,BookSort, ISBN, BookPicture, ContentInro, Price, Discount) 查询作者名长度大于等于8的图书信息,显示书名(BookName)及作者(Author)。SQL语句: SELECT BookName, Author FROM Book WHERE Lenth(Author)= 8

    BookStore数据库中有图书表 Book(BookCode, BookName, Author, PublisherCode, PublishTime,BookSort, ISBN, BookPicture, ContentInro, Price, Discount) 查询作者名长度大于等于8的图书信息,显示书名(BookName)及作者(Author)。SQL语句: SELECT BookName, Author FROM Book WHERE Lenth(Author)= 8

  • 2021-04-14 问题

    要删除book表中书籍(bookName)是“java”的记录,以下代码正确的是() String sql=”delete from book where bookName=?”; PreparedStatement pst=con.preparedStatement(sql); ____________________________ pst.execute();

    要删除book表中书籍(bookName)是“java”的记录,以下代码正确的是() String sql=”delete from book where bookName=?”; PreparedStatement pst=con.preparedStatement(sql); ____________________________ pst.execute();

  • 2021-04-14 问题

    BookStore数据库中有图书表Book(BookCode,BookName,...WHERELenth(Author)=8

    BookStore数据库中有图书表Book(BookCode,BookName,...WHERELenth(Author)=8

  • 2021-04-14 问题

    在查询语句SELECT bookname as name,author,pric...ks中,名称peichang指的是( )

    在查询语句SELECT bookname as name,author,pric...ks中,名称peichang指的是( )

  • 2022-06-15 问题

    下列代码为创建图书视图的代码,请选择所缺少的部分代码。 v_book (barcode,bookname,author,price,booktype) barcode,bookname,author,price,typename FROM tb_bookinfo AS b ,tb_booktype AS t WHERE b.typeid=t.id;

    下列代码为创建图书视图的代码,请选择所缺少的部分代码。 v_book (barcode,bookname,author,price,booktype) barcode,bookname,author,price,typename FROM tb_bookinfo AS b ,tb_booktype AS t WHERE b.typeid=t.id;

  • 2021-04-14 问题

    BookStore数据库中有图书表Book(BookCode,BookName,...As最高价与最低价的差值FromBook

    BookStore数据库中有图书表Book(BookCode,BookName,...As最高价与最低价的差值FromBook

  • 2021-04-14 问题

    在查询语句SELECT bookname as name,author,price*2 as pc INTO peichang FROM books中,名称peichang指的是( )

    在查询语句SELECT bookname as name,author,price*2 as pc INTO peichang FROM books中,名称peichang指的是( )

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