题目内容（请给出正确答案）

[主观题]

【填空题】stmt为Statement对象，执行String sqlStatement = "delete from book where bid='tp1001' ";语句后，删除数据库表的记录需要执行stmt.executeUpdate ____________; 语句。

暂无答案

如搜索结果不匹配，请联系老师获取答案

您可能会需要：

重置密码查看订单联系客服

安装上学吧APP，拍照搜题省时又省心！

更多“【填空题】stmt为Statement对象，执行String…”相关的问题

第1题

程序填空题：从数据库student表中查询所有学生并放入A...

程序填空题：从数据库student表中查询所有学生并放入ArrayList中。 Connection con=null; Statement stmt=null; ResultSet rs=null; String uri = "jdbc:mysql://localhost:3306/st"; List<student> list=new ArrayList<student>(); try { 【 1 】=DriverManager.getConnection(uri,"root",""); 【 2 】=con.createStatement(); rs=stmt.【 3 】(“【 4 】sname,sid,score from student”); while(rs.next()) { Student s=new Student(); s.sname=rs.【 5 】(“sname”); s.sid=rs.【 5 】(“sid”); s.score=rs.getFloat(“score”); list.add(s); } rs.close; stmt.close(); con.close(); } catch(SQLException e) { System.out.println(e.getMessage()); }

点击查看答案

第2题

【单选题】下面是创建Statement接口并执行executeUpdate方法的代码片段： conn=DriverManager.getConnection("jdbc:odbc:book","",""); stmt=conn.createStatement(); String strsql="insert into book values('TP003', 'ASP','李','清华出版社',3

A、1

B、0

C、-1

D、一个整数

点击查看答案

第3题

下列代码生成了一个结果集 conn=DriverManager.getConnection(uri,user,password); stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_READ_ONLY); rs=stmt.executeQuery("select * from book"); 下面

A、不能用结果集中的数据更新数据库中的表

B、能用结果集中的数据更新数据库中的表

C、执行update方法能更新数据库中的表

D、不确定

点击查看答案

第4题

A、rs.isFirst()为真

B、rs.ifLast()为真

C、rs.isAfterLast()为真

D、rs.isBeforeFirst()为真

点击查看答案

第5题

设有如下文法(其中Stmt是开始符号)： Stmt→if e then Stmt ｜if e then Stmt else Stmt 试为该文法构造有错误纠正功能的LR分析器。

点击查看答案

第6题

下列代码中不存在安全漏洞是( )。

A. char buffer[256];

Strcpy ( buffer,str )

B. char buffer [256];strncpy(buffer,str，sizeof(buffer)-1); buffer[sizeof(buffer)-1]=0;

C. String sql = “select * from item where account= ‘ “+account+”

‘and sku= ‘ “+sku “ ‘ “;

ResultSet rs = stmt.execute( query);

D. 〈&String eid = request.getParameter( “eid”);%>

EmployeeID:〈%=eid%>

点击查看答案

第7题

Which element should a logistics mtssion statement focus on？（）

CreatingtheLogisticsVisionNowadays,mostcompaniesarefamiliarwiththeideaof"missionstatement"asanexpressionofsettingavisionforthebusiness.Themissionstatementseekstodefinethepur-poseofthebusiness,itsboundariesanditsaspirations.Itisnowcommonfororganizationstohavesuchstatementforthebusinessasawholeandforkeyconstituentcomponents.Whatsomecompanieshavefoundisthattherecanbesignificantbenefitstodefiningthelo-gisticsvisionofthefirm.Thepurposeofthelogisticsvisionstatementistogiveaclearindicationwhichbusinessintendstobuildapositionofadvantagethroughclosercustomerrelationship.Suchstate-mentisnevereasytoconstruct.Thereisalwaysthedangerthattheywillpublishtheener-geticandencouragingdeclarationthatgiveeveryoneawarmfeelingbutprovidenoguidelineforaction.Ideallythelogisticsvisionshouldbebuiltaroundthesimpleissueof"Howdoweintendtouselogisticsandsupplychainmanagementtocreatevalueforourcustomers?"Torealizethisideawillnecessitateadetailedunderstandingofhowcustomervalueiscreatedanddeliv-eredinthemarketinwhichthebusinesscompetes.Valuechainanalysiswillbeafundamen-talelementinthisinvestigationaswillthedefinitionofthecorecompetenciesandcapabilitiesoftheorganization.Askingthequestion"Whatactivitiesdoweexcelin?"and"Whatisitthatdifferentiatesusfromourcompetitors?"isthestartingpointforcreatingthelogisticsvisionstatement.Earlier,itwassuggestedthatthethreewords"Better,Faster,Cheaper"summarizesthewaysinwhichlogisticsvisionstatementcanprovidevalueforcustomers.Thecriterionforgoodlogisticsvisionstatementisthatitshouldprovidetheroadmapforhowthesethreegoalsaretobeachieved．Questions:

Which element should a logistics mtssion statement focus on？（）

A.Transportation.

B.Costs.

C.Customers.

D.Punctuality.

点击查看答案

第8题

What made him take up cooking as a child?

A．His parents expected him to help in their restaurant.

B．He felt it was the best way of getting some money.

C．His father wanted to teach him to cook.

点击查看答案

第9题

17号车钩缓冲装置装用的缓冲器为( )。

A.2号

B.ST型

C.MT-2型

D.MT-3型

点击查看答案

【填空题】stmt为Statement对象，执行String sqlStatement = "delete from book where bid='tp1001' ";语句后，删除数据库表的记录需要执行stmt.executeUpdate ____ ________________; 语句。

【填空题】stmt为Statement对象，执行String sqlStatement = "delete from book where bid='tp1001' ";语句后，删除数据库表的记录需要执行stmt.executeUpdate ____________; 语句。