现有表book,字段:id(int),title(varchar),price(float);其中id字段设为标识,使用insert语句向book表中插入数据,以下语句错误的是()。A、insert into book (id,title,price) values(1,'java',100)B、insert into book (title,price) values('java',100)C、insert into book values ('java',100) 这辆都不可以啊,如果不指定列需要明确的给出空值D、insert book values('java',100)

现有表book,字段:id(int),title(varchar),price(float);其中id字段设为标识,使用insert语句向book表中插入数据,以下语句错误的是()。

  • A、insert into book (id,title,price) values(1,'java',100)
  • B、insert into book (title,price) values('java',100)
  • C、insert into book values ('java',100) 这辆都不可以啊,如果不指定列需要明确的给出空值
  • D、insert book values('java',100)

相关考题:

● 在XML中,元素book 的声明语句如下:!ELEMENT book (title,price+,author?,borrow*)该声明语句表明,元素book中子元素 (62) 至少出现一次。A. title B. price C. author D. borrow

You are developing a Windows Communication Foundation (WCF) REST service to provide access to a library book catalog. The following code segment defines the service contract. (Line numbers are included for reference only.)01 [ServiceContract()]02 [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]03 public Class LibraryService04 {05 public Book GetBookByTitle(string title)06 {07 ...08 }0910 [WebGet(UriTemplate = Book/{id})]11 public Book GetBookById(string id)12 {13 ...14 }15 }Library patrons want the ability to search the catalog by title.You need to ensure that the GetBookByTitle method is exposed as a service method.Which code segment should you insert at line 04?()A. [WebGet(UriTemplate = Book/{title})]B. [WebGet(UriTemplate = BookByTitle/{title})]C. [WebGet(UriTemplate = Book/{titleToSearch})]D. [WebGet(UriTemplate = {titleToSearch})]

有如下关系:课程表C,主键为c-id (char (4))。若用如下语句建立成绩表SC: CREATE TABLE SC(s-id char(6)NOT NULL,c-id char(4)NOT NULL,score Inteeer), 其中s-id为主键,c-id为外键(是C表的主键)。当执行如下语句肘,( )语句不能执行。A.INSERT SC VALUES('990101','NULL',75)B.INSERT SC VALUES('990203','C601',80)C.INSERT SC VALUES(NULL,'C602',93)D.INSERT SC VALUES('990202','C604',NULL)

有如下关系:课程表C,主键为c-id(char(4))。c-id c-name若用如下语句建立成绩表SC: CREATE TABLE SC(s-id char(6)NOT NULL,c-id char(4)NOT NULL,score Integer),其中s-id为主键,c-id为外键(是C表的主键)。当执行如下语句时,哪个语句不能执行? ( )。A.INSERT SC VALUES('990101','NULL',75)B.INSERT SC VALUES('990203','C601',80)C.INSERT SC VALUES(NULL,'C602',93)D.INSERT SC VALUES('990202','C604',NULL)

由以下语句创建的表有种子字段,请正确组合插入语句,可不分先后。CREATE TABLE Customer(id int IDENTITY PRIMARY KEY,Customer varchar(40))() A.INSERT INTO CustomerB.SET IDENTITY_INSERT Customer ONC.VALUES(3,’garden shovel’)D.(id,Customer)

在XML中,元素book的声明语句如下:<1ELEMENT book(title.price+,author?,borrow*)>该声明语句表明,元素book中子元素______至少出现一次。A.titleB.priceC.authorD.borrow

在XML中,元素book的声明语句如下:<1ELEMENT book (title.price+, author?, borrow*)>该声明语句表明,元素book中子元素______至少出现一次。A.title]B.price]C.authorD.borrow

假定有“struct BOOK{char title[40]; float price;} book;”,则正确的语句为()。Astruct BOOK x= book;Bstruct BOOK *x=book;Cstruct BOOK x=calloc(BOOK);Dstruct BOOK *x=BOOK;

假定有“struct BOOK{char title[40]; float price;}; struct BOOK book;”,则不正确的语句为()。Astruct BOOK *x=malloc(book);Bstruct BOOK x={"C++ Programming",27.0};Cstruct BOOK *x=malloc(sizeof(struct BOOK));Dstruct BOOK *x=book;

由以下语句创建的表有种子字段,请正确组合插入语句,可不分先后。CREATE TABLE Customer(id int IDENTITY PRIMARY KEY,Customer varchar(40))()A、INSERT INTO CustomerB、SET IDENTITY_INSERT Customer ONC、VALUES(3,’garden shovel’)D、(id,Customer)

要在users表中插入一条新记录,下面语句正确的是()。A、Insert Into users(id,user_name) Values(100, "luhong")B、Insert Into users(real_name,tel) Values("卢红","6545632")C、Insert Into users(user_name,Email) Values("luhong", "")D、Insert Into users(user_name,Email) Values("luhong", NULL)

现有表book,字段:id(int),title(varchar),price(float);其中id字段设为标识,使用insert语句向book表中插入数据,以下语句错误的是()。A、insert into book(id,title,price)values(1,’java’,100)B、insert into book(title,price)values(’java’,100)C、insert into book values(’java’,100)D、insert book values(’java’,100)

表book中包含三个字段:title(varchar),author(varchar),price(float)。Author的默认值是’UNKNOW’,执行sql语句:insertbook(title,price)values(‘jsp’,50)。以下结果正确的是()。A、插入失败,sql语句有错B、插入成功,author列的数据是UNKNOWC、插入成功,author列的数据是NULLD、插入成功,author列的数据是50

现有书目表book,包含字段:price(float);现在查询一条书价最高的书目的详细信息,以下语句正确的是()A、select top 1 * from book order by price ascB、select top 1 * from book order by price descC、select top 1 * from book where price= (select max (price)from book)D、select top 1 * from book where price= max(price)

现有书目表book,包含字段:价格price(float),类别type(char);现在查询各个类别的平均价格、类别名称,以下语句正确的是()。A、select avg(price),type from book group by typeB、select count(price),type from book group by priceC、select avg(price),type from book group by priceD、select count(price),type from book group by type

如果要查询book表中所有书名以“数据库”开头的书籍价格,下列()语句是正确的。A、SELECT price FROM book WHERE book_name=“数据库*”B、SELECT price FROM book WHERE book_name LIKE“数据库*”C、SELECT price FROM book WHERE book_name=“数据库%”D、SELECT price FROM book WHERE book_name LIKE“数据库%”

You are developing a Windows Communication Foundation (WCF) REST service to provide access to a library book catalog. The following code segment defines the service contract. (Line numbers are included for reference only.) 01 [ServiceContract( )] 02 [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] 03 public Class LibraryService 04 { 05 public Book GetBookByTitle(string title) 06 { 07 ... 08 } 09 10 [WebGet(UriTemplate = "Book/{id}")] 11 public Book GetBookById(string id) 12 { 13 ... 14 } 15 }Library patrons want the ability to search the catalog by title.You need to ensure that the GetBookByTitle method is exposed as a service method.Which code segment should you insert at line 04?()A、[WebGet(UriTemplate = "Book/{title}")]B、[WebGet(UriTemplate = "BookByTitle/{title}")]C、[WebGet(UriTemplate = "Book/{titleToSearch}")]D、[WebGet(UriTemplate = "{titleToSearch}")]

关于SQL语句“SELECTAuthor,BookName,ID,ISBN,Price FROM book ORDER BY ID DESC”的说法错误的是()。A、该语句表示从表“book”中查询所有记录B、该语句显示的字段是“Author”、“BookName”、“ID”、“ISBN”和“Price”C、该语句对查询到的记录将根据ID按升序排列D、该语句中的“book”表示数据表

单选题表book中包含三个字段:title(varchar),author(varchar),price(float)。Author的默认值是’UNKNOW’,执行sql语句:insertbook(title,price)values(‘jsp’,50)。以下结果正确的是()。A插入失败,sql语句有错B插入成功,author列的数据是UNKNOWC插入成功,author列的数据是NULLD插入成功,author列的数据是50

单选题现有表book,字段:id(int),title(varchar),price(float);其中id字段设为标识,使用insert语句向book表中插入数据,以下语句错误的是()。Ainsert into book(id,title,price)values(1,’java’,100)Binsert into book(title,price)values(’java’,100)Cinsert into book values(’java’,100)Dinsert book values(’java’,100)

单选题假定有“struct BOOK{char title[40]; float price;}; struct BOOK book;”,则不正确的语句为()。Astruct BOOK *x=malloc(book);Bstruct BOOK x={C++ Programming,27.0};Cstruct BOOK *x=malloc(sizeof(struct BOOK));Dstruct BOOK *x=book;

单选题假定有“struct BOOK{char title[40]; float price;} book;”,则正确的语句为()。Astruct BOOK x= book;Bstruct BOOK *x=book;Cstruct BOOK x=calloc(BOOK);Dstruct BOOK *x=BOOK;

单选题现有书目表book,包含字段:price(float);现在查询一条书价最高的书目的详细信息,以下语句正确的是()。Aselect top1*from book order by price ascBselect top1*from book order by price descCselect top1*from book where priceDselect top1*from book where price=max(price)

单选题关于SQL语句“SELECTAuthor,BookName,ID,ISBN,Price FROM book ORDER BY ID DESC”的说法错误的是()。A该语句表示从表“book”中查询所有记录B该语句显示的字段是“Author”、“BookName”、“ID”、“ISBN”和“Price”C该语句对查询到的记录将根据ID按升序排列D该语句中的“book”表示数据表

单选题现有表book,字段:id(int),title(varchar),price(float);其中id字段设为自增长的标识,使用insert语句向book表中插入数据,以下语句错误的是()。Ainsertintobook(id,title,price)values(1,’java’,100)Binsertintobook(title,price)values(’java’,100)Cinsertintobookvalues(’java’,100)Dinsertbookvalues(’java’,100)

单选题如果要查询book表中所有书名以“数据库”开头的书籍价格,下列()语句是正确的。ASELECT price FROM book WHERE book_name=“数据库*”BSELECT price FROM book WHERE book_name LIKE“数据库*”CSELECT price FROM book WHERE book_name=“数据库%”DSELECT price FROM book WHERE book_name LIKE“数据库%”

多选题现有表book,字段:id(int),title(varchar),price(float);其中id字段设为标识,使用insert语句向book表中插入数据,以下语句错误的是()。Ainsert into book (id,title,price) values(1,'java',100)Binsert into book (title,price) values('java',100)Cinsert into book values ('java',100) 这辆都不可以啊,如果不指定列需要明确的给出空值Dinsert book values('java',100)