The introduction.
The middle.
The conclusion.
The statement
第1题：
A.
B.
C.
D.
第2题：
A. The statement produces an error at line 1.
B. The statement produces an error at line 3.
C. The statement produces an error at line 6.
D. The statement returns the employee name, salary, department ID, and maximum salary earned in the department of the employee for all departments that pay less salary then the maximum salary paid in the company.
E. The statement returns the employee name, salary, department ID, and maximum salary earned in the department of the employee for all employees who earn less than the maximum salary in their department.
第3题：
A.the income statement columns of the work sheet
B.the adjusted trial balance
C.either the adjusted trial balance or the income statement columns of the work sheet
D.both the adjusted trial balance and the income statement columns of the work sheet
第4题：
Which two statements are true about terms in a routing policy?（）
第5题：
cn是Connection对象，创建Statement对象的方法是（）。
第6题：
A. The DESCRIBE DEPT statement displays the structure of the DEPT table.
B. The ROLLBACK statement frees the storage space occupies by the DEPT table.
C. The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.
D. The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.
第7题：
What is a sub-select statement?
A．a select statement that selects a subset of fields in a table
B．a select statement that returns a subset of the data in a table
C．a select statement that appears within another select statement
D．a select statement that returns a subset of the constraints on a field
第8题：
Examine the description of the MARKS table:SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects.Examine this SELECT statement based on the MARKS table:What is the result of the SELECT statement?（）
A. 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.
B. The statement returns an error at the SELECT clause.
C. The statement returns an error at the WHERE clause.
D. The statement returns an error at the ORDER BY clause.
第9题：
Prepared Statement是Statement的子接口，使用Prepared Statement要比使用Statement性能更高。
第10题：
Which three are true?（）