【解析】--1 create database mis go use mis go --2 create table scours(ID int, courseID int, student ID int,score int) go create table student(studentID int, sname char (10)) go --3 insert into student values(1,'张某某'); insert into scours values(1,1,1,96); --4 select ...
C There is more than one student named Kate Henry.D The FIRST_NAME and LAST_NAME values in the database are in lowercase. 相关知识点: 试题来源: 解析 C 该SQL语句使用子查询作为`=`的右值,要求子查询必须返回单行结果。当子查询返回多行时,主查询的`WHERE id = (...)`会因无法处理多行而失...
SQL injection attack is a challenge to any online database that process data based on user inputs. This research investigates one of the most important online database threats. The research reviews related work, design and implement a secured student database application for testing the SQL ...
CREATE++DATABASE++STUDENT1CREATEDATABASESTUDENT1 ON (NAME=STUDENT1_Data, FILENAME='C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Data\STUDENT1.mdf', SIZE=10MB, MAXSIZE=50MB, FILEGROWTH=10% ) LOGON (NAME='STUDENT1_Log', FILENAME='C:\Program Files\Microsoft SQL Server\MSSQL.1\...
create database student go use student create table S( sno char(6) constraint PK_sno Primary key, sname varchar(10) not null , age int constraint CHK_age check(age between 10 and 40) , GPA real ) go create table C( cno char(4) constraint PK_cno Primary key, cname varchar(40) ...
编写一个程序,查询Access数据库Database1中Student表中的信息,其中数据库Database1对应的数据源为myData。importjava.sql.*;publicclassDataDemo{publicstaticvoidmain(Stringargs[])throwsException{Class.forName(___(1)___);//加载JDBC-ODBC驱动程序Connectionconn=DriverManager.getConnection(___(2)__,",");/...
SQL")"附近有语法错误应为IDcreate database studenton primary(name = 'student_data',filename = 'E:\SQL实验\student.mdf',size = 10mb,maxsize = unlimited,filegrowth = 10%,)
createdatabasetest; 二.学生表-student (学号sno、姓名sname、性别ssex、出生年月sbirthday、所在班级sclass) createtablestudent ( snovarchar(10)primarykey, snamevarchar(10)notnull, ssexvarchar(1)notnull, sbirthdaydatetimenotnull, sclassint) ; ...
三、SQL语言 1、基本表的操作 定义基本表 : create table 修改基本表: alter table 删除基本表: drop table 建立索引:create Cluster 删除索引:drop index 表名 2、数据查询: 聚集函数: count、sum、avg、max、min 分组:group by 指定组或聚合应满足的搜索条件: having ...
Hosted on Azure Static Web Apps and Azure Functions, and utilizing Azure Cosmos DB for NoSQL as the vector database, this session offers a practical starting point for developing sophisticated AI applications. Join us and start building the future of AI chat applications today! 形式: 直播 ...