What is the correct answer is this question is sql ?

hi .. please i need correct answer in this question ..
View the Exhibit and examine the structure of the PRODUCTS table.
Using the PRODUCTS table, you issue the following query to generate the names, current list price, and
discounted list price for all those products whose list price falls below $10 after a discount of 25% is applied
on it.
SQL>SELECT prod_name, prod_list_price,
prod_list_price - (prod_list_price * .25) "DISCOUNTED_PRICE"
FROM products
WHERE discounted_price < 10;
The query generates an error.
What is the reason for the error?
A-The parenthesis should be added to enclose the entire expression.
B-The double quotation marks should be removed from the column alias.
C-The column alias should be replaced with the expression in the WHERE clause.
D-The column alias should be put in uppercase and enclosed with in double quotation marks in the WHERE clause.

Hi,
Have you taken the time to determine what happens when you perform the requested actions?
If you have access to Oracle Database it should be less than a 10 minute exercise.
At a minimum, using hosted Oracle Application Express you have access to Oracle Database.
If you've done it, what were the results? There should be a telling error message.
Regards,
Mark

Similar Messages

What are the correct answers ?

after doing one sample swing application, i assumed the exam will be easy. when i took the exam, i couldn't do anything...
what are the correct answers ??/
Which one of the following converts the Image i into the BufferedImage bi?
Choice 1
bi = new BufferedImage(0, 0, BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D)bi.createGraphics();
g.drawImage(i,i.getHeight(this),i.getWidth(this));
Choice 2
bi = new BufferedImage(i.getWidth(this), i.getHeight(this), 1);
bi.drawImage(i,0,0,this);
Choice 3
bi = new BufferedImage(i.getWidth(this), i.getHeight(this), 1);
Graphics2D g = (Graphics2D)bi.createGraphics();
g.drawImage(i,0,0,this);
Choice 4
bi = new BufferedImage(i, i.getWidth(this), i.getHeight(this), BufferedImage.TYPE_INT_RGB);
Choice 5
bi = new BufferedImage(i, i.getWidth(this), i.getHeight(this));
CardLayout
BorderLayout
FlowLayout
GridBagLayout
GridLayout
Which one of the following indicates all of the layout managers (from the list above) that allow you to set the space between the components from an instance of the LayoutManager itself?
Choice 1
CardLayout, FlowLayout, GridBagLayout, GridLayout
Choice 2
GridBagLayout
Choice 3
BorderLayout, GridLayout
Choice 4
BorderLayout, FlowLayout, GridLayout
Choice 5
BorderLayout, CardLayout, FlowLayout, GridBagLayout, GridLayout
JFrame jf = new JFrame();
jf.setSize(400,400);
JTextField jtf = new JTextField("JTextField");
JButton jb = new JButton("JButton");
jf.getContentPane().setLayout(
 new FlowLayout(FlowLayout.LEFT,1,2));
jf.getContentPane().add(jtf);
jf.getContentPane().add(jb);
Which one of the following indicates the positions of the JTextField jtf and JButton jb relative to the JFrame and each other?
Choice 1
jtf and jb are in the top-center of the Jframe; jtf is to the left of jb, 2 pixels apart.
Choice 2
jb is in the top-right corner of the JFrame with jtf 1 pixel to the left of it.
Choice 3
jtf is in the top-left corner of the JFrame with jb 1 pixel to the right of it.
Choice 4
jb is in the top-right corner of the JFrame with jtf 2 pixels to the left of it.
Choice 5
jtf is in the top-left corner of the JFrame with jb 2 pixels to the right of it
public void drawText(Graphics2D g, String text){
Font f = new Font("Century Gothic", Font.BOLD, 10);
g.setFont(f);
g.drawString(text, 20, 20);
Given the above sample code, what happens if the "Century Gothic" font is NOT available?
Choice 1
The Font() constructor fails, causing "f" to be null, and the setFont() method throws a NullPointerException.
Choice 2
"Century Gothic" is a built in Java font, which always exists within the Java runtime environment.
Choice 3
The code does not compile because only the following "logical" font names are supported in Java: Dialog, DialogInput, Monospaced, Serif, SansSerif, and Symbol.
Choice 4
The Font() constructor throws an IllegalArgumentException.
Choice 5
A default Font object is returned and is used
Sample Code
public void drawText(Graphics2D g, String text){
Font f = new Font("Century Gothic", Font.BOLD, 10);
g.setFont(f);
g.drawString(text, 20, 20);
Given the above sample code, what happens if the "Century Gothic" font is NOT available?
Choice 1
The Font() constructor fails, causing "f" to be null, and the setFont() method throws a NullPointerException.
Choice 2
"Century Gothic" is a built in Java font, which always exists within the Java runtime environment.
Choice 3
The code does not compile because only the following "logical" font names are supported in Java: Dialog, DialogInput, Monospaced, Serif, SansSerif, and Symbol.
Choice 4
The Font() constructor throws an IllegalArgumentException.
Choice 5
A default Font object is returned and is used.
How must do you interact with a JTextField in order to generate an ActionEvent?
Choice 1
Tab into the JTextField from another Component.
Choice 2
Type in the JTextField.
Choice 3
Activate the cursor in the JTextField.
Choice 4
Hit <RETURN> while the cursor is in the JTextField.
Choice 5
Hit the spacebar while typing in the JTextField.
double-buffering
public class TimerTest implements ActionListener{
public static void main(String[] args){
 TimerTest test = new TimerTest();
 javax.swing.Timer timer = new javax.swing.Timer(100,test);
public void actionPerformed(ActionEvent ev){
 System.out.println("Timer ticked.");
Given the above sample code, what is the result when the code is run?
Choice 1
The words "Timer ticked." are printed to the console once after 100 milliseconds.
Choice 2
The words "Timer ticked." are printed to the console every 100 microseconds.
Choice 3
The words "Timer ticked." are printed to the console every 100 seconds.
Choice 4
The words "Timer ticked." are printed to the console every 100 milliseconds.
Choice 5
Nothing, the Timer is not started.
1. JSlider slider1 = new JSlider (JSlider.VERTICAL, 0, 100, 50);
2. slider1.setPaintTicks(false);
3. slider1.setMajorTickSpacing(10);
4. slider1.setMinorTickSpacing(2);
What changes do you have to make to the above Sample code so that there are six Major Ticks and four Minor ticks between each Major Tick?
Choice 1
Replace line 3 with slider1.setMajorTickSpacing(17);
Choice 2
Replace line 2 with slider1.setPaintTicks(true);
Replace line 3 with slider1.setMajorTickSpacing(17);
Replace line 4 with slider1.setMinorTickSpacing(5);
Choice 3
Replace line 3 with slider1.setMajorTickSpacing(5);
Replace line 4 with slider1.setMinorTickSpacing(4);
Choice 4
Replace line 2 with slider1.setPaintTicks(true);
Replace line 3 with slider1.setMajorTickSpacing(20);
Replace line 4 with slider1.setMinorTickSpacing(4);
Choice 5
Replace line 4 with slider1.setMinorTickSpacing(6);
 Which one of the following defines a set of three JRadioButtons (b1, b2, and b3) so that only one JRadioButton can be selected at a time?
Choice 1
ButtonGroup g = new ButtonGroup();
g.add(b1); g.add(b2); g.add(b3);
Choice 2
b1.group(true); b2.group(true); b3.group(true);
Choice 3
JRadioButton jbs[] = {b1, b2, b3};
ButtonGroup g = new ButtonGroup(jbs);
Choice 4
The default behavior of JRadioButtons is such that only one can be selected at a time as long as they are in the same Container.
Choice 5
ButtonGroup g = new ButtonGroup(b1, b2, b3);
Sample Code
public static void main(String args[]){
What is the role of the method in the code above?
Choice 1
To provide a place for initialization code when instantiating the current class.
Choice 2
It is the first method run when a class is run with the Java Interpreter.
Choice 3
It serves no specific function. It is a residual method from Java 1.0.
Choice 4
It is the first method that the Java Compiler converts to bytecode when creating a .class file.
Choice 5
To process command-line parameters when running the Java Interpreter
How do you create a menu item, Save, with a shortcut key of Ctrl+S?
Choice 1
You have to override the KeyPressed event of the top level Frame and handle the Ctrl+S to call the menu item's actionPerformed.
Choice 2
JMenuItem save = new JMenuItem("Save");
save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,Event.CTRL_MASK));
Choice 3
JMenuItem save = new JMenuItem("Save");
save.enableShortcut(KeyEvent.CTRL_KEY + KeyEvent.S);
Choice 4
JMenuItem save = new JMenuItem("Save");
save.setMnemonic("Ctrl+S");
Choice 5
JMenuItem save = new JMenuItem("Save");
save.addShortcutKey( new KeyStroke(KeyStroke.S | KeyStroke.CTRL_KEY) );
GridBagConstraints gbc1 = new GridBagConstraints(1,1,2,1,1,3,10,1,new Insets(5,5,5,5),1,1);
gbl.addLayoutComponent(jb,gbc1);
In regards to the above code, which one of the following indicates jb's grid position?
Choice 1
Grid position 2,1
Choice 2
Grid position 1,2
Choice 3
Grid position 1, 1
Choice 4
Grid position 10, 1
Choice 5
Grid position 1, 3
GridBagConstraints gbc1 = new GridBagConstraints(1,1,2,1,1,3,10,1,new Insets(5,5,5,5),1,1);
gbl.addLayoutComponent(jb,gbc1);
In regards to the above code, which one of the following indicates jb's grid position?
Choice 1
Grid position 2,1
Choice 2
Grid position 1,2
Choice 3
Grid position 1, 1
Choice 4
Grid position 10, 1
Choice 5
Grid position 1, 3
Which one of the following is necessary when changing an Applet to a standalone application?
Choice 1
Add a no-argument constructor.
Choice 2
Remove the init(), start() and stop() methods.
Choice 3
Remove "extends JApplet" or "extends Applet".
Choice 4
Add a main() method.
Choice 5
Change the import statement so that it imports an Application container rather than Applet or JApplet.
Which one of the following adds the String "Java" to the JComboBox jcb?
Choice 1
ComboBoxModel cbm = jcb.getModel();
cbm.addItem("Java");
Choice 2
jcb.setText("Java");
Choice 3
ComboBoxModel cbm = jcb.getModel();
cbm.add("Java");
Choice 4
jcb.add("Java");
Choice 5
jcb.addItem("Java");

I'll have a go but I am not saying they are all correct...
Question 1.
Which one of the following converts the Image i into the BufferedImage bi?
Choice 3 (assuming this implements the imageobserver interface)
bi = new BufferedImage(i.getWidth(this), i.getHeight(this), 1); //1 is BufferedImage.TYPE_INT_RGB
Graphics2D g = (Graphics2D)
bi.createGraphics();
g.drawImage(i,0,0,this);Good luck with your homework...
nes
Question 2.
CardLayout
BorderLayout
FlowLayout
GridBagLayout
GridLayout
Which one of the following indicates all of the layout managers (from the list above) that allow you to set the space between the components from an instance of the LayoutManager itself?
Choice 4
BorderLayout,
FlowLayout,
GridLayout
(GridBagLayout uses GridBagConstraints to decide component spacing, card layout does not provided component spacing due to the deck nature used)
Question 3.
JFrame jf = new JFrame();
jf.setSize(400,400);
JTextField jtf = new JTextField("JTextField");
JButton jb = new JButton("JButton");
jf.getContentPane().setLayout( new FlowLayout(FlowLayout.LEFT,1,2));
jf.getContentPane().add(jtf);
jf.getContentPane().add(jb); Which one of the following indicates the positions of the JTextField jtf and JButton jb relative to the JFrame and each other?
Choice 3 jtf is in the top-left corner of the JFrame with jb 1 pixel to the right of it.
Question 4
public void drawText(Graphics2D g, String text)
 Font f = new Font("Century Gothic", Font.BOLD, 10);
 g.setFont(f);
 g.drawString(text, 20, 20);
} Given the above sample code, what happens if the "Century Gothic" font is NOT available?
Choice 5 A default Font object is returned and is used
Question 5.
How must do you interact with a JTextField in order to generate an ActionEvent?
Choice 4 Hit <RETURN> while the cursor is in the JTextField.
Question 6.
public class TimerTest implements ActionListener
 public static void main(String[] args)
 TimerTest test = new TimerTest();
 javax.swing.Timer timer = new javax.swing.Timer(100,test);
 public void actionPerformed(ActionEvent ev)
 System.out.println("Timer ticked.");
} Given the above sample code, what is the result when the code is run?
Choice 5 Nothing, the Timer is not started.
Question 7.
1. JSlider slider1 = new JSlider (JSlider.VERTICAL, 0, 100, 50);
2. slider1.setPaintTicks(false);
3. slider1.setMajorTickSpacing(10);
4. slider1.setMinorTickSpacing(2); What changes do you have to make to the above Sample code so that there are six Major Ticks and four Minor ticks between each Major Tick?
Choice 4 Replace line 2 with slider1.setPaintTicks(true); Replace line 3 with slider1.setMajorTickSpacing(20); Replace line 4 with slider1.setMinorTickSpacing(4);
Question 8.
Which one of the following defines a set of three JRadioButtons (b1, b2, and b3) so that only one JRadioButton can be selected at a time?
Choice 1 ButtonGroup g = new ButtonGroup(); g.add(b1); g.add(b2); g.add(b3);
Question 9.
Sample Code
public static void main(String args[]){ }
TYPO - should be public static void main(String[] args){ }
What is the role of the method in the code above?
Choice 2 It is the first method run when a class is run with the Java Interpreter.
Question 10.
How do you create a menu item, Save, with a shortcut key of Ctrl+S?
Choice 2 JMenuItem save = new JMenuItem("Save");
save.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S,Event.CTRL_MASK));
Question 11.
GridBagConstraints gbc1 = new GridBagConstraints(1,1,2,1,1,3,10,1,new Insets(5,5,5,5),1,1); gbl.addLayoutComponent(jb,gbc1);
In regards to the above code, which one of the following indicates jb's grid position?
Choice 3 Grid position 1, 1
Question 12
Which one of the following is necessary when changing an Applet to a standalone application?
Choice 1 Add a no-argument constructor.
Choice 2 Remove the init(), start() and stop() methods.
Choice 3 Remove "extends JApplet" or "extends Applet".
Choice 4 Add a main() method.
Choice 5 Change the import statement so that it imports an Application container rather than Applet or JApplet.
mmm. not a good choice of answers. look at the following link...
http://forum.java.sun.com/thread.jsp?forum=57&thread=218096
Question 13.
Which one of the following adds the String "Java" to the JComboBox jcb?
Choice 5 jcb.addItem("Java");

What is the correct wording to connect to an SQL Server Express 2014 database?

I am connecting to an Access 2007 database:
oleConnection = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\...\\Db.accdb");
What is the correct wording to connect to an SQL Server Express 2014 database?
bhs67

Hello,
Please make sure you change RemoteServer with the computer name of the intended SQL Server server.
Make sure the SQL Server instance have enable TCP/IP and Named Pipes protocols. Use the following article to enable them:
http://msdn.microsoft.com/en-us/library/ms191294.aspx
Start SQL Server Browser Service using SQL Server Configuration Manager.
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

What's the correct syntax for this?

Hey guys
If...
trace(rowsHolder.getChildByName("mc"+newStr).y);
...correctly outputs the y coordinate of (in this case) mc001, how do I output the y coordinate of a movieClip called item_base_mc that's within the timeline of mc001?
trace(rowsHolder.getChildByName("mc"+newStr).item_base_mc.y);
...gives me a display object error.
I've tried permutations of the above with [] brackets in various places, but haven't cracked the code.
What would be the correct way to write it?
Thanks for taking a look.
Shaun

I don't know how to really explain this, but from documentation you will notice - getChildByName() - is actually a function from - DisplayObject - not MovieClip.
Link here provides a better explanation!
http://curtismorley.com/2007/06/13/flash-cs3-flex-2-as3-error-1119
GOOD LUCK

What is the Correct Component For This?

I'm lost as to what component to use for navigation within my application. Across the top of my app I want something which horizontally displays a list of categories which the user can click to select. This is fine if I use a tilelist but I also want to allow my client to add and remove categories and for the width of the component to adjust so that new categories fit in but it seems impossible to apply <fit to content> to a tilelist the way you can to a hbox which obviously means scrollbars will appear and if you switch the scroll policy off this simply means any added categories won't be visible if they are past the set width. It seems that anything with the selecteditem property (which is what I need for my app) operates on set width's.
If a hbox had a selecteditem property that would be perfect. Is there any such way of getting a component to work like this?

That sounds great and I am starting to see a lot of flex 4 solutions to problems theses days although 3.5 still seems to be the norm. One thing I'm confused about is this - I'm still a web dev student until june. When I started my course I uploaded a scanned image of my uni id card and got a flex 3.5 serial key and was able to use it and install it for free. I assume that I will do the same to get this new version but 1. Will this invalidate my previous key and disallow me to use the version I have installed now (maybe I'm being paranoid) and 2. Will I be able to use the one I've installed currently or, if I get the new version, use that forever and install them as many times as I like even AFTER my current degree is finished? Basically I'm unsure as to how it works.
One thing I've been worrying about is what if my course finishes and I get a job which involves me working from home on websites and all of a sudden flex deactivates from my machine because I've finished my course but again maybe I'm just being paranoid and once you have a key you can use it for good. I have to say that is crazy generous of adobe if that's the case and if so I might aswell get a key for the new version before I'm out of education.
What do you think?

I am betting that Shane has the best answer for this question.

I am a long time user of Final Cut. Recently I worked on my first project using AVID and was very mystified. They said they capture at 15/1 ratio and it seems to be about 31 mbps. So if they were capturing at a 1/1 ratio, that just seems like a very large file for just one minute of footage. Am I crazy or doesn't Final Cut give you a better quality video for far less storage space?

They said they capture at 15/1 ratio and it seems to be about 31 mbps.
Yes, that is an "offline" resolution. Like Offline RT is in FCP, or ProRes Proxy. Good only to see what you are cutting. You recapture at full resolution later. This is the very typical and standard Avid workflow that has worked well for decades.
So if they were capturing at a 1/1 ratio, that just seems like a very large file for just one minute of footage.
Yes....1:1 is comparable to Uncompressed 10 bit in FCP, which also produces very large media files. Avid also has a DV codec, for capturing DV material, and that is comparable to FCPs DV codec. Lossless, yet small, because they are native DV codecs.
Am I crazy or doesn't Final Cut give you a better quality video for far less storage space?
You are crazy. As JIm said, there are many different flavors of codecs. Avid's 1:1 is comparable to FCP's Uncompressed 10-bit. Avid DV is FCP DV. Avid's DNxHD, the preferred codec of choice now, was revolutionary as it gave 1:1 quality at much smaller file sizes. FCP follows suit with ProRes...full uncompressed quality, smaller file size.
Shane

What is the correct answer ?

To receive multiple messages in a container what category types you would use
a). Receive
b). List details
c). Multi loop

Muhammad,
Please read the first thread by Kenny Scott..!! Think.. Not sure if you can post these questions here...!!
VJ

Input Text will not allow me to access the correct answer!

Hi All
i am trying to create a simple quiz in school. I have one test question which requires the answer to be -1.
I have created Input text and assigned the variable answer for this question.
I have a button with the following AS2 script:
on (press, keyPress "<Enter>") {
 if(answer eq "-1" or answer eq "minus 1"
 or answer eq "Minus 1" or answer eq "Minus one" or answer eq "minus one")
 {_root.gotoAndStop(2)
 } else
 {_root.gotoAndStop(3)
Firstly whatever you type the numerical keys are immobilised on the keyboard when the .SWF file is built
Secondly I cannot enter the correct answer!! If I type in Minus 1 etc it goes to frame 3.
I have tried flags rather than frame numbers - same problem.
i have tried remaking the quiz as a separate file.
using CS4 and CS5 flash - windows 7 PC.
Please help!!
teacheRuss

A: Input Text will not allow me to access the correct answer!

Ned
Thanks for the reply. I had instances for all elements but had code on teh but (Instance Enter). I have tried your code with my instance names. The button is Q1 (I was going to add more if it worked). The vaiable name for the Insert text box is ans1 so I used the code below. I added the code to frame 1 in teh timeline. I think this is what you meant so a frame script as opposed to a buton script. i have always scriped buttons (very simple). I have played around with the trace(); function but i am not sure where to run it from. I have added it to the script below. I tried Q1 which is the button and ans1 (variable). It must be wrong as I cannot see any output. Last thing. Is it not right ot use eq and or?? I am using Actionscript 2.
The disabled keys is the same running the code on my mac and pc!
Q1.onRelease = function() {
    if(ans1.text == "-1" || ans1.text == "minus 1" || ans1.text == "Minus 1" || ans1.text == "Minus one" || ans1.text == "minus one") {
         _root.gotoAndStop(2)
     } else {
         _root.gotoAndStop(3)
trace(Q1);

I seem to not enter the correct answers to my security questions for itunes to buy an in-app purchase and also cannot answer the questions exactly like i answered them when creating the account for my ipod, how do i find out what answers i put

Try these previous discusssions:
recover answers to security questions: Apple Support Communities
how do i change apple ID security...: Apple Support Communities

What Are The Correct Gray OS X Discs For This Imac?

I got a free 700Mhz G4, 15" Screen, 512mb Ram, 40GB HDD and I was wondering what are the correct OS X discs (Gray) that came with this Mac?
There has to be a serial or model number right? I have Leopard installed on it and I missing having the DVD player so could I connect the iMac to my PowerMac G5 using Target Disc Mode, and then install Panther or Tiger onto the iMac through it?

Liquidus wrote:
I got a free 700Mhz G4, 15" Screen, 512mb Ram, 40GB HDD and I was wondering what are the correct OS X discs (Gray) that came with this Mac?
The correct Mac OS restore discs are Mac OS X 10.1.2 and Mac OS 9.2.2. I have restore discs for a 600MHz Late 2001 iMac G3, which has the same identical software as the iMac G4. That part number for the disc set is 603-0372.
For the second part of your question, you can install Panther or Tiger through Target Disc Mode from your PM G5.
-Brian

What is the best approach for a short answer quiz that has a number range as the correct answer?

Client does not want to use multiple choice questions, so I am trying to figure out the best way to put in a range of numbers for the correct answer.

I'm doing my best to figure this out, but not finding success in my advanced action. Below is the quiz question and how I setup the advanced action.
Question: Determine the total heat load for test house 1.
Answer: 32,120
Acceptable Answer Range: 30,514 - 33,726
Created TEB - Validate User Input; Numbers; Variable Name: Value1; Correct Entries box blank; Reporting: Include in Quiz; Points 10; add to total; report answers
     On Focus Lost: Execute Advanced Actions
          Conditional Action
               If
                    Value1 is greater or equal to 30514 AND
                    Value 1 is lesser or equal to 33726
               Then
                    Show SmartShape_1 (Correct feedback prompt)
                    Expression Value1=cpQuizInfoTotalQuizPoints+10 (I have also tried cpQuizInfoTotalProjectPoints and got same results)
               Else
                    Show SmartShape_2 (Incorrect feedback prompt)
I have quiz reporting turned on and I am testing this by including a second slide that is a standard multiple choice question so I can check results on the Quiz Results page at the end of the project showing the total score. I have not been successful yet in getting the system to add the points in appropriately. Is there another system variable I should be using to add the points to the quiz for reporting to the LMS or am i going about this completely wrong?

When i type in the correct answer for my security question it always comes up as incorrect I have the answer written down but there not working can someone help

hello
when i type in the correct answer for my security question it always comes up as incorrect I have the answer written down but there not working can someone help

Hi, Corinneact.
Thank you for visiting Apple Support Communities.
The usual cause for errors is that the security question responses are case sensitive. If case sensitivity is not an issue with your answers, see the last step in the attached section of the article below.
Navigate to My Apple ID using your web browser.
Click "Manage your account"
When prompted, sign in using your Apple ID and password.
Click Password & Security
You'll be asked to answer 2 of your 3 security questions before you can make any modifications. If you are unable to remember your answers, you can choose to send an email to your rescue email to reset your security questions.
Note: The option to send an email to reset your security questions and answers will not be available if a rescue email address is not provided. You will need to contact iTunes Store support in order to do so.
Rescue email address and how to reset Apple ID security questions
http://support.apple.com/kb/HT5312
Cheers,
Jason H.

What is the correct syntax for using a variable in an ad hoc query?

Hi all
I am an occasional DB user and at the moment need to update about 1000+ records so that a certain column gets a unique value.
So I thought that I would use a variable for this.
I then built this kind of SQL statement for just a small subset of the records:
variable recNumber number;
exec :recNumber := 1;
UPDATE TABLE_TO_BE_UPD
SET COL_TO_BE_UPD = COL_TO_BE_UPD + recNumber
WHERE COL_TO_BE_UPD IN ('VAL_A','VAL_B');
I get the invalid SQL statement error when attempting to execute above (besides the prompt that asks for a value which I would like to omit).
Anyway I also tried this one:
CREATE SEQUENCE seqCounter;
UPDATE TABLE_TO_BE_UPD
SET COL_TO_BE_UPD = COL_TO_BE_UPD + seqCounter.NEXTVAL
WHERE COL_TO_BE_UPD IN ('VAL_A','VAL_B');
From this one I got the error ORA-01722: invalid number...I am guessing this comes because seqCounter is of type number and the COL_TO_BE_UPD is of type character...(?)
So what I would like to ask is what is the correct way to define and use a counter type of variable to append a number at the end of a character string?
Also another question that I would like to ask is that are variables that are used in ad hoc queries also called 'bind variables'?
Thanks muchly

If you want to append a unique number to a column then this would do it:
UPDATE TABLE_TO_BE_UPD
SET COL_TO_BE_UPD = COL_TO_BE_UPD ||to_char(rownum)
WHERE COL_TO_BE_UPD IN ('VAL_A','VAL_B');

Setting XML based exam to where there are two correct answers in a question

I have an exam which pulls in questions from an XML file and to indicate what the correct answer is you would indicate in the XML as such:
PROBLEM id="1">
 <QUESTION>What is the State Capital of California:</QUESTION>
 <CHOICE letter="a">San Fransisco.</CHOICE>
 <CHOICE letter="b">San Diego.</CHOICE>
 <CHOICE letter="c">Los Angelas.</CHOICE>
 <CHOICE letter="d" correct="true">Sacremento.</CHOICE>
 </PROBLEM>
There is one question, that is structured so there are two right answers, but when I add correct="true" to both answers I want as right only one is calculated correctly in the scoring. I thinking I need to make an adjustment in the code that pulls in the XML, but not sure where. Hoping someone can help.
Here is the AS code.
package exam {
 import flash.net.* //to create URLRequest and load XML file
 import flash.events.* //for Load events
 //import flash.display.* //for testing purposes - remove when testing complete
 //This class downloads the XML document, and then inserts info into arrays and variables.
 //Also provides text of questions and correct answers when requested.
 internal class XaMLDiplomat extends EventDispatcher {
 //VARIABLES:
 //for loaded XML doc
 private var myXML:XML;
 //for loading in XML
 private var examLoader:URLLoader;
 private var numQstns:Number; //count of total questions in a section
 private var sectStart:Number;
 //contains exam questions - ALL ARRAYS ARE ZERO RELATIVE -> actual question numbers = array index + 1
 private var questions:Array;
 //contain associated answer choices
 private var choiceA:Array;
 private var choiceB:Array;
 private var choiceC:Array;
 private var choiceD:Array;
 private var choiceE:Array;
 private var choiceF:Array;
 //array of the correct answers
 private var answers:Array;
 //use custom Mixer class to randomize order
 private var myMixer:Mixer;
 private var isRandom:Boolean;
 //CONSTRUCTOR
 public function XaMLDiplomat () { //NEED TO ADD ARGUMENTS (docLocation)
 //create URLRequest from argument
 var examSite:URLRequest = new URLRequest("protected/exam.xml");
 //create a loader for the XML
 examLoader = new URLLoader();
 //add listener for load completion
 examLoader.addEventListener(Event.COMPLETE, fullyLoaded);
 examLoader.load(examSite);
 //var ugly:Mixer = new Mixer(25);
 //Load listener - creates XML object, and checks it for multiple sections. If multiple, it asks users
 //which section they want - FIRST it needs to check database for any completed sections.
 //If single, it goes ahead and starts array creation for first (& only) section
 private function fullyLoaded (e:Event):void {
 myXML = new XML(examLoader.data);
 //myXML.prettyPrinting = false;
 //still need to pull out SYSTEM data and pass it along...
 var system:XMLList = myXML..SYSTEM;
 var sysObj:Object = new Object();
 sysObj.examTitle = system.TITLE.toString();
 sysObj.totalMin = system.MINUTES.toString();
 sysObj.retakePW = system.RETAKEPW.toString();
 var numSections:Number = myXML..SECTION.length();
 if (numSections == 1) {
 generateArrays(1);
 dispatchEvent(new MultiSectEvent(MultiSectEvent.SECTIONS, numSections, sysObj));
 //Assigns arrays to instance variables for the selected section
 internal function generateArrays (sectn:Number):void {
 var whichSection:XMLList = myXML..SECTION.(@id == String(sectn));
 var probList:XMLList = whichSection.PROBLEM;
 numQstns = probList.length();
 sectStart = Number(probList[0].@id);
 questions = new Array();
 choiceA = new Array();
 choiceB = new Array();
 choiceC = new Array();
 choiceD = new Array();
 choiceE = new Array();
 choiceF = new Array();
 answers = new Array();
 for (var i:Number=0; i<numQstns; i++) {
 var curProb:XMLList = probList.(@id == String(i+1));
 if (curProb.QUESTION.hasSimpleContent()) {
 questions[i] = curProb.QUESTION.toString();
 }else {
 //trace(curProb.QUESTION.toXMLString());
 questions[i] = dropTags(curProb.QUESTION[0]);
 choiceA[i] = curProb.CHOICE.(@letter == "a").toString();
 choiceB[i] = curProb.CHOICE.(@letter == "b").toString();
 choiceC[i] = curProb.CHOICE.(@letter == "c").toString();
 choiceD[i] = curProb.CHOICE.(@letter == "d").toString();
 choiceE[i] = curProb.CHOICE.(@letter == "e").toString();
 choiceF[i] = curProb.CHOICE.(@letter == "f").toString();
 answers[i] = curProb.CHOICE.(hasOwnProperty("@correct") && @correct == "true")[email protected]();
 //randomizing test
 //var makeRandom:Boolean;
 //system.RANDOM.toString() == 'true' ? makeRandom = true : makeRandom = false;
 //myMixer = new Mixer(numQstns,makeRandom);
 trace("Question: "+questions[3]);
 trace("a: "+choiceA[3]);
 trace("b: "+choiceB[3]);
 trace("c: "+choiceC[3]);
 trace("d: "+choiceD[3]);
 trace("\r\n answer: "+answers[3]); */
 //method for external classes to acquire text of current exam question
 internal function getQuestion (qnum:Number):Object {
 var returnObj:Object = new Object();
 var randomQ:Number = myMixer.getRandomNumber(qnum-1);
 returnObj.q = questions[randomQ];
 returnObj.ca = choiceA[randomQ];
 returnObj.cb = choiceB[randomQ];
 returnObj.cc = choiceC[randomQ];
 returnObj.cd = choiceD[randomQ];
 returnObj.ce = choiceE[randomQ];
 returnObj.cf = choiceF[randomQ];
 returnObj.num = qnum;
 //trace(randomQ);
 return returnObj;
 private function dropTags (txt:XML):String {
 var txtString:String = "";
 for each (var child:XML in txt.*) {
 if (child.nodeKind == "text") {
 txtString += child.toString();
 }else {
 txtString += " " + child.toXMLString();
 //trace(txtString);
 return txtString;
 private function dropTags (txt:String):String {
 var sliceStart:Number = txt.indexOf(">");
 var sliceStop:Number = txt.lastIndexOf("<");
 return txt.slice((sliceStart+1), sliceStop);
 internal function getAnswer (num:Number):String {
 return answers[num];
 internal function getQCount ():Number {
 return numQstns;
 internal function getSectStart():Number {
 return sectStart;
 internal function getRealNum (num:Number):Number {
 return myMixer.getRandomNumber(num-1);

this may or may not be the probel, but as it stands right now, when you select and anser it becomes hi-lighted and when you click off and select another answer the previous answer is deselected and the current answer is hi-lighted. I need to allow for multiple selections. This code is what is doing to current select/de-select functionality.
package exam {
 import flash.display.*;
 import flash.events.*;
 import flash.text.*;
 //This class displays the current question, and contains the Choices for the question
 public class QMachine extends Sprite {
 //VARIABLES
 private var QObject:Object; //object from XaMLDiplomat, containing necessary text
 private var limit:Number;
 private var QNumTxt:TextField;
 private var QTxt:TextField;
 private var txtStyle:StyleSheet;
 private var choiceA:Choice;
 private var choiceB:Choice;
 private var choiceC:Choice;
 private var choiceD:Choice;
 private var choiceE:Choice;
 private var choiceF:Choice;
 //CONSTRUCTOR
 public function QMachine (hite:Number) {
 limit = hite;
 var style:Object = new Object();
 style.fontFamily = "Arial";
 //style.fontWeight = "bold";
 style.fontSize = "16";
 style.color = "#333333";
 txtStyle = new StyleSheet();
 txtStyle.setStyle("p",style);
 QNumTxt = new TextField();
 QNumTxt.styleSheet = txtStyle;
 //QNumTxt.embedFonts = true;
 QNumTxt.htmlText = "1) ";
 QNumTxt.autoSize = TextFieldAutoSize.RIGHT;
 QNumTxt.x = 10;
 QNumTxt.mouseEnabled = false;
 QTxt = new TextField();
 QTxt.styleSheet = txtStyle;
 //QTxt.embedFonts = true;
 QTxt.width = 300;
 QTxt.multiline = true;
 QTxt.wordWrap = true;
 QTxt.autoSize = TextFieldAutoSize.LEFT;
 QTxt.htmlText = "Question 1";
 QTxt.x = 35;
 QTxt.mouseEnabled = false;
 addChild(QNumTxt);
 addChild(QTxt);
 choiceA = new Choice("a");
 choiceA.x = 350;
 addChild(choiceA);
 choiceB = new Choice("b");
 choiceB.x = 350;
 addChild(choiceB);
 choiceC = new Choice("c");
 choiceC.x = 350;
 addChild(choiceC);
 choiceD = new Choice("d");
 choiceD.x = 350;
 addChild(choiceD);
 choiceE = new Choice("e");
 choiceE.x = 350;
 addChild(choiceE);
 choiceF = new Choice("f");
 choiceF.x = 350;
 addChild(choiceF);
 addEventListener(MouseEvent.MOUSE_UP, selectResponse, true);
 internal function newQuestion (obj:Object, prior:String = ""):void {
 //trace(obj.num);
 QNumTxt.htmlText = ""+ obj.num + ".";
 QTxt.htmlText = ""+ obj.q + "";
 choiceA.deselect();
 choiceB.deselect();
 choiceC.deselect();
 choiceD.deselect();
 choiceE.deselect();
 choiceF.deselect();
 choiceA.resetSize();
 choiceB.resetSize();
 choiceC.resetSize();
 choiceD.resetSize();
 choiceE.resetSize();
 choiceF.resetSize();
 choiceA.changeTxt(obj.ca);
 choiceB.changeTxt(obj.cb);
 choiceB.y = choiceA.height + 5;
 if (obj.cc == undefined || String(obj.cc) == "") {
 choiceC.visible = false;
 }else {
 choiceC.changeTxt(obj.cc);
 choiceC.y = choiceB.y + choiceB.height + 5;
 choiceC.visible = true;
 if (obj.cd == undefined || String(obj.cd) == "") {
 choiceD.visible = false;
 }else {
 choiceD.changeTxt(obj.cd);
 choiceD.y = choiceC.y + choiceC.height + 5;
 choiceD.visible = true;
 if (obj.ce == undefined || String(obj.ce) == "") {
 choiceE.visible = false;
 }else {
 choiceE.changeTxt(obj.ce);
 choiceE.y = choiceD.y + choiceD.height + 5;
 choiceE.visible = true;
 if (obj.cf == undefined || String(obj.cf) == "") {
 choiceF.visible = false;
 }else {
 choiceF.changeTxt(obj.cf);
 choiceF.y = choiceE.y + choiceE.height + 5;
 choiceF.visible = true;
 var curHite:Number;
 if (choiceF.visible) {
 curHite = choiceF.y + choiceF.height + 5;
 }else if (choiceE.visible) {
 curHite = choiceE.y + choiceE.height + 5;
 }else if (choiceD.visible) {
 curHite = choiceD.y + choiceD.height + 5;
 }else {
 curHite = choiceC.y + choiceC.height + 5;
 if (curHite > (limit-150)) {
 shrinkText();
 if (prior != "") {
 if (prior == "a") {
 choiceA.nowSelected();
 }else if (prior == "b") {
 choiceB.nowSelected();
 }else if (prior == "c") {
 choiceC.nowSelected();
 }else if (prior == "d") {
 choiceD.nowSelected();
 }else if (prior == "e") {
 choiceE.nowSelected();
 }else if (prior == "f") {
 choiceF.nowSelected();
 private function shrinkText() {
 choiceA.dropSize();
 choiceB.dropSize();
 choiceC.dropSize();
 choiceD.dropSize();
 choiceE.dropSize();
 choiceF.dropSize();
 choiceB.y = choiceA.y + choiceA.height + 5;
 choiceC.y = choiceB.y + choiceB.height + 5;
 choiceD.y = choiceC.y + choiceC.height + 5;
 choiceE.y = choiceD.y + choiceD.height + 5;
 choiceF.y = choiceE.y + choiceE.height + 5;
 var curHite:Number = 0;
 if (choiceF.visible) {
 curHite = choiceF.y + choiceF.height + 5;
 }else if (choiceE.visible) {
 curHite = choiceE.y + choiceE.height + 5;
 }else if (choiceD.visible) {
 curHite = choiceD.y + choiceD.height + 5;
 }else {
 curHite = choiceC.y + choiceC.height + 5;
 if (curHite > (limit-150)) {
 shrinkText();
 private function selectResponse (e:MouseEvent):void {
 choiceA.deselect();
 choiceB.deselect();
 choiceC.deselect();
 choiceD.deselect();
 choiceE.deselect();
 choiceF.deselect();
 var letter:String = e.target.parent.getLetter();
 dispatchEvent(new ResponseEvent(ResponseEvent.SELECTION, letter));
 internal function setPriorResponse() {
 choiceA.deselect();
 choiceB.deselect();
 choiceC.deselect();
 choiceD.deselect();
 choiceE.deselect();
 choiceF.deselect();

What is the correct format of filepath string on Mac os x?

I am trying to retrieve a file from Mac os x by:
File file=new File(filepath);
My boot volume name is "myVol", and filepath is "/myVol/opt/ab.txt". However, when I provide this path, the file is not found. I just figured out that if I use "/opt/ab.txt" the correct file can be found!!
Now, if I have a shared volume on my machine(I got it by menu "Go-->Connect to Server..."), whose name is "Mac Share", the filepath should be something "/Mac Share/test/123.txt". File file=new File("/Mac Share/test/123.txt") can not find the file. It looks like that it's trying to find 123.txt from /myVol/Mac Share/test directory, which doesn't exist. I even tried "//MacShare/test/123.txt", "Mac Share/test/123.txt", etc., and none of them worked!!
If you know the correct format to specify the filepath on Mac OS x, please give me help!!!!
Thanks in advance.

I don't know the exact answer to your question, but you can probably figure it out on your own like:
1) Create a File object that represents an existing file. Play around with the path until the file can be found.
2) Now that you have a File object representing a valid, existing path, use MyFile.getAbsolutePath() to see what the full path string is. MyFile.getCanonicalPath() might provide some answers as well.
Whatever getAbsolutePath() returns is the correct format for the file path string.

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