题目内容
（请给出正确答案）
A.)like“张*”
B.like“张%”
C.like“张_”
D.like“张-”
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（由简答题聘请的专业题库老师提供的解答）
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更多“查找一下姓张的同学的信息应为select*fromxswhere姓名()。”相关的问题
设有一个学生选课数据库，其包括学生表S、课程表C和学生选课表SC三个关系：
S(SNO, SNAME, SAGE, SSEX, SDEP);
C(CNO, CNAME);
SC(SNO, CNO, GRADE)。
其中SNO是学生号，SNAME是学生姓名，SAGE是年龄，SDEP是学生所在系，CNO是课程号，CNAME是课程名称。
检索所有比“刘晨”年龄大的学生姓名、年龄和性别。正确的SELECT语句是()。
A.SELECT SNAME, SAGE, SSEX FROM S
WHERE SAGE >(SELECT SAGE FROM S WHERE SNAME = '刘晨');
B.SELECT SNAME, SAGE, SSEX FROM S WHERE SNAME = '刘晨';
C.SELECT SNAME, SAGE, SSEX FROM S
WHERE SAGE>(SELECT SAGE WHERE SNAME = "刘晨");
D.SELECT SNAME, SAGE, SSEX FROM S WHERE SAGE>'王华'.SAGE;
A、exec sql select Sname,Sage into vSname,vSage from Student where Sname = specName;
B、exec sql begin declare section char vSname[10], specName[2]=“lzt”； int vSage;
C、exec sql select Sname,Sage into :vSname, :vSage from Student where Sname = :specName;
D、其他有多于一个的选项没有错误。
1 Transport is one of the aids to trade. By moving goods from places where they are plentiful to places where they are scarce, transport adds to their value. The more easily goods can be brought over the distance that separates producer and consumer, the better for trade. When there were no railways, no good roads, no canals, and only small sailing ships, trade was on a small scale.
2 The great advances made in transport during the last two hundred years were accompanied by a big increase in trade. Bigger and faster ships enabled a trade in meat to develop between Britain and New Zealand, for instance. Quicker transport makes possible mass-production and big business, drawing supplies from, and selling goods to, all parts of the globe. Big factories could not exist without transport to carry the large number of workers they need to and from their homes. Big city stores could not have developed unless customers could travel easily from the suburbs and goods delivered to their homes. Big cities could not survive unless food could be brought from a distance.
3 Transport also prevents waste. Much of the fish landed at the ports would be wasted if it could not be taken quickly to inland towns. Transport has given us a much greater variety of foods and goods since we no longer have to live on what is produced locally. Foods which at one time could be obtained only during a part of the year can now be obtained all through the year. Transport has raised the standard of living.
4 By moving fuel, raw materials, and even power, as, for example, through electric cables, transport has led to the establishment of industries and trade in areas where they would have been impossible before. Districts and countries can concentrate on making things which they can do better and more cheaply than others and can then exchange them with one another. The cheaper and quicker transport becomes, the longer the distance over which goods can profitably be carried. Countries with poor transport have a lower standard of living.
5 Commerce requires not only the moving of goods and people but also the carrying of messages and information. Means of communication, like telephones, cables and radio, send information about prices, supplies, and changing conditions in different parts of the world. In this way, advanced communication systems also help to develop trade.
Paragraph 2 ______
A Higher Living StandardB Importance of Transport in TradeC Various Means of TransportD Birth of Transport-related Industries and TradeE Role of Information in TradeF Public Transportation
Paragraph 3 ______
A Higher Living StandardB Importance of Transport in TradeC Various Means of TransportD Birth of Transport-related Industries and TradeE Role of Information in TradeF Public Transportation
Paragraph 4 ______
A Higher Living StandardB Importance of Transport in TradeC Various Means of TransportD Birth of Transport-related Industries and TradeE Role of Information in TradeF Public Transportation
Paragraph 5 ______
A Higher Living StandardB Importance of Transport in TradeC Various Means of TransportD Birth of Transport-related Industries and TradeE Role of Information in TradeF Public Transportation
The development of modem means of transport ______ .
A to send goods to various parts of the worldB at any time during the yearC has greatly promoted tradeD is it possible to produce on a large scaleE the transport of goodsF it is possible to produce on a large scale
Only when goods can be carded to all parts of the world quickly ______ .
A to send goods to various parts of the worldB at any time during the yearC has greatly promoted tradeD is it possible to produce on a large scaleE the transport of goodsF it is possible to produce on a large scale
Transport has made it possible for people to eat whatever food they want ______ .
A to send goods to various parts of the worldB at any time during the yearC has greatly promoted tradeD is it possible to produce on a large scaleE the transport of goodsF it is possible to produce on a large scale
In the trade of modern society the transmission of information plays as important a role as ______ .
A to send goods to various parts of the worldB at any time during the yearC has greatly promoted tradeD is it possible to produce on a large scaleE the transport of goodsF it is possible to produce on a large scale
A、delete from CS_student where sno='200215123'
B、update CS_student set sdept='IS' where sno='200215123'
C、insert into CS_student values('200215129','Mike','男',20,'CS')
D、insert into CS_student values('200215128','Tom','男',21,'MA')
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