CMS专题
单选题Within the application MY_APP the following PREVIOUS VALUE expression references the sequence MY_SEQ: PREVIOUS VALUE FOR my_seq After which of the following events will the most recently generated value of MY_SEQ persist so that it can be returned to
题目
After a ROLLBACK is issued
After the sequence is altered
After the sequence is dropped
After the current session ends
相似问题和答案
第1题：
Which of the following statements describe the use of the keyword
static?
a) Within the body of a function: A static variable maintains its value
between function revocations
b) Within a module: A static variable is accessible by all functions
within that module
c) Within a module: A static function can only be called by other
functions within that module
第2题：
A.It applies to a single data server.
B.It is a recoverable sequence of operations.
C.Its value can be queried from the system catalog tables.
D.It begins when the application connects to the data server.
第3题：
You work as an application developer at Certkiller .com. Certkiller .com uses an application that calculates monthly payments based upon client input.You are currently debugging this application using the Microsoft Visual Studio 2005 IDE.The application contains the following code:public double CalculateMonthlyPayment (Single rate, double principal) {//Implementation code}You have discovered that unexpected results are being returned by the application. You would like to pause execution and display a message box containing an error message in the event of a negative or zero rate value is Passed to the CalculateMonthlyPayment method.You need to ensure that this only occurs during debugging mode.What should you do?（）
A.
B.
C.
D.
第4题：
What does it mean for a variable in the Application Editor to be defined as a parameter?（）
- A、The variable can be used to pass data to and from subflows.
- B、The value for that variable can be supplied via Application Configuration in Application Administration.
- C、The value for that variable is defined by the calling application.
- D、The variable can be used in conditional steps.
- E、The variable can be used to pass data to and from VoiceXML applications.
正确答案:B
第5题：
In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）
- A、 N times the stripe unit size
- B、 N times the VMM minfree parameter
- C、 The same value as that of the VMM maxfree parameter
- D、 The same value as that of the VMM maxrndwrt parameter
正确答案:A
第6题：
Within the application MY_APP the following PREVIOUS VALUE expression references the sequence MY_SEQ: PREVIOUS VALUE FOR my_seq After which of the following events will the most recently generated value of MY_SEQ persist so that it can be returned to the active MY_APP application?（）
A.After a ROLLBACK is issued
B.After the sequence is altered
C.After the sequence is dropped
D.After the current session ends
第7题：
You issued the following statement： SQL> ALTER SESSION SET NLS_LANG=FRENCH_CANADA.WE8ISO8859P1； Which parameter is NOT overridden by using the above statement？（）
- A、 the value of the NLS_LANGUAGE variable
- B、 the value of the NLS_TERRITORY variable
- C、 the value of the NLS_CURRENCY variable
- D、the character encoding scheme used by the client application
正确答案:C
第8题：
Which of the following is "报盘"?
A、bid
B、estimate
C、offer
D、value
第9题：
（）is a measure of the market value of all goods and services within the boundaries of a nation.
- A、GNP
- B、GDP
- C、FDI
- D、MNC
正确答案:B
第10题：
Application A currently holds an exclusive lock on a single row and application B tries to access that row. If lock timeout is set to -1 and both applications are using isolation level RS, which of the following will occur?（）
- A、Applications A and B will cause a deadlock situation
- B、Application B will read the previous version of the row
- C、Application B will read the row and see uncommitted changes made by application A
- D、Application B will be placed in a lock-wait state until application A releases its lock
正确答案:D