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You’re going to have a quiz ( )by another two in the ( )month.
A. followed,followedB. followed,followingC. following,followedD. following,following
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After __________ (examine) the lady, the doctor suggested that his back was badly hurt in the accident.
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定义如下枚举类型:enum Number{one=l,tow=2,four=4,eight=8},则下列语句正确的是( )。A.Number num=1;B.Number num=Number(20);C.Number num=Number(eight|0xFF);D.枚举类型Number的取值范围是0~15
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定义如下枚举类型:enum Number{one=1,two=2,four=4,eight=8),则下列语句正确的是( )。A.Number num=1;B.Numbernum=Number(20);C.Number num=Number(eight│OxFF);D.枚举类型Number的取值范围是0~15
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找出"作者"库表中没有出现在"获奖名单"库表中的所有作者信息的SQL语句,(提示:使用NOT IN,NOT EXISTS,以及外部连接(+)三种方法),并说明那种方法是不优化的出版社: 出版社代码 char(2),出版社名称 varchar2(32)图书: 图书编号 char(8),图书名称 varchar2(128),出版社代码 char(2),作者代号char(4),图书简介 varchar2(128)作者: 作者代号 char(4),作者名称 varchar2(10),性别 char(1),年龄 number(3),文学方向 varchar2(64)获奖名单: 获奖日期 date,获奖人员 char(4)
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定义如下枚举类型:enum Number{one=1,tow=2,four=4,eight=8},则下列语句正确的是( )。A.Number num=1;B.Number num=Number(20);C.Number num=Number(eight|OxFF);D.枚举类型Number的取值范围是0~15
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tonywouldliketomakeiteasierforusersofthevideoapplicationtoenternewdocusingthe“videoform”,he’dlikeuserstobeabletocreatenew“video”docformwithintheview.Whichoneofthefollowingshouldtonysotobuildthisinterface?()A.createaviewactionthathasthefollowingformula:@command([create];”video”)B.createaformactionthathasthefollowingformula:@command([compose];”video”)C.createaviewactionthathasthefollowingformula:@command([compose];”video”)D.createadatabaseactionthathasthefollowingformula:@command([compose];”video”)
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【单选题】对于建立在数据库上的DDL触发器,常用的激活DDL触发器的事件不包括()A.Create_Table,Alter_Table,Drop_TableB.Create_View,Alter_View,Drop_ViewC.Create_Procedure,Alter_Procedure,Drop_ProcedureD.Rollback
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23、假定 number=4,下面哪个语句不会出错?A.print(format(number, "2d"), format(number ** 1.5, "4d"))B.print(format(number, "2d"), format(number ** 1.5, "4.2d"))C.print(format(number, "2d"), format(number ** 1.5, "4.2f"))D.print(format(number, "2f"), format(number ** 1.5, "4.2d"))
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如果要让某个用户能够在所有模式下建表应该授予此用户哪个权限?A.create tableB.create any tableC.create all tableD.create * table