You are maintaining a database of credit card transactions. You want the data to be returned automatically in the chronological order of the credit card numbers without using the ORDER BY clause in the query. Which type of cluster will you use to obtain the desired result？（） Hash cluster。 Index cluster。 Sorted hash cluster。 Real Application cluster。
工程参建单位必须严格按照要求收集、整理、归档工程各环节的文件资料；工程竣工资料、项目档案经（）验收并签发归档交接单之后，才能获得最终尾留款的支付。 招标单位。 施工单位。 项目法人。 监理单位。
The system administrator is making system wide changes to a server， which will add to the PATH variable for the server environment. Where is the PATH variable found for the system？（） /profile。 /etc/envpath。 /etc/profile。 /etc/environment。
A customer has determined they want to install an IBM x445 system in their company. They will be running a large database on the system. In order to determine how many CPUs will be needed to attain the optimum cost-effective solution， which TWO of the following questions should be asked？（） How large is the database？。 What is the expected user workload？。 How is the database software licensed？。 What type of user interface will be used？。 How much data cache will the database be allocated？。
Examine the description of the MARKS table: STD_ID NUMBER(4) STUDENT_NAME VARCHAR2(30) SUBJ1 NUMBER(3) SUBJ2 NUMBER(3) SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects. Examine this SELECT statement based on the MARKS table: SELECT subj1+subj2 total_marks, std_id FROM marks WHERE subj1 > AVG(subj1) AND subj2 > AVG(subj2) ORDER BY total_ marks; What is the result of the SELECT statement? （） The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject.。 The statement returns an error at the SELECT clause.。 The statement returns an error at the WHERE clause.。 The statement returns an error at the ORDER BY clause.。
Which of the following objects can be directly referenced by a window object？（）
