[1,2,3].insert(0,4)的列表为值为()
SQL语言的数据操纵语句包括SELECT,INSERT,UPDATE和DELETE等。其中最重要的,也是使用最频繁的语句是()
关于INSERT BLACK命令,下列说法正确的是()。
正确错误使用Insert before命令可以在当前记录之前添加新记录。
数据库视图可以通过INSERT或UPDATE语句生成。()
Examine the statement: GRANT select, insert, update ON student_grades TO manager WITH GRANT OPTION; Which two are true?()
You have two tables with referential integrity enforced between them. You need to insert data to the child tablefirst because it is going to be a long transaction and data for the parent table will be available in a later stage,which can be inserted as part of the same transaction. View the Exhibit to examine the commands used tocreate tables. Which action would you take to delay the referential integrity checking until the end of thetransaction()
学生表(XS.DBF)的表结构为:学号(C,8),姓名(C,8),性别(C,2),班级(C,6)用Insert命令向XS表添加一条新记录,记录内容为:学号为02220101姓名为王辉性别为男班级为022201。下列命令中正确的是()
11.rbo = new ReallyBigObject(); 12.//more code here 13.rbo = null; 14./*insert code here*/ Which statement should be placed at line 14 to suggest that the virtual machine expend effort toward recycling the memory used by the objectrbo?()
1. interface Animal { 2. void eat(); 3. } 4. 5. // insert code here 6. 7. public class HouseCat implements Feline { 8. public void eat() { } 9. } 和以下三个接口声明: interface Feline extends Animal { } interface Feline extends Animal { void eat(); } interface Feline extends Animal { void eat() { } } 分别插入到第 5 行,有多少行可以编译?()