I could use the answer anytime
Did u send me any answer?
i changed the price
opsss. My bank will deny.I am just a poor school boy trying to make it. Its ok. I'll come back next time. Thanks for your time.
I know that price is small, is there anything you can do, maybe question 1 and 2. I will do question 3 by myself.
are you there today?
I am trying tom add some more pay to it.
can u please send me n under price report again so I could edit the price
I can not fix the price 65 I placed it on 52. is there something you can do with that?
Hi. you did not answer my question Sir. This is my question.
1.Describe a minimum of three (3) heuristics to optimize Queries.
2.Provide the SQL code (and screen shots) based on the following criteria:
Honestly. I could not find the answer to my question. What eaxcly answers that?
hi.. are you very good at Unix?
In this terminal session, you will create a small text file and practice using the editing
keys that vi provides. Use your imagination. Do not limit yourself to the small file in
Try to use all the keys that are explained in this chapter.
1. Use the vi editor to create a file called Chapter4 and type in the text shown on
2. Save this file
The vi history
The vi editor was developed at the University of california, berkeley
as part of the berkeley unix system.
"Chapter4" [new file ]
3. Open the test file again and add text to make it look like the text shown on screen 2.
4. Save this file again.
The vi editor was developed at the University of california
berkeley as part of the berkeley unix system.
At the beginning the vi editor was part of another editor
The vi part of the ex editor was often used and became very.
This popularity forced the developers to come up with a separate
now the vi editor is independent of the ex editor and is available on
most of the UNIX operating system.
The vi editor is a good editor for everyday editing jobs.
5. Open the test file once more and edit the text to make it look like the text on screen 3.
6. Search for the word vi using the / (forward search). Use n to find the next occurrence
of the word vi.
7. Search for the word vi using the ? (backward search). Use n to find the next occurrence
8. Place the cursor at the beginning of the file and delete five lines. Undo your delete.
9. Place the cursor at the beginning of the second line and delete 10 characters. Undo
10. Use r to replace the character at the cursor position. Undo your action.
11. Use R to change the word developers to creators. Undo your action.
12. If you have a Linux system, practice the following:
a. Get help for the help command.
b. Get help for the ZZ command.
c. Get help for the search command.
13. Save your file for later exercise sessions using the ZZ command.
The vi editor was developed at the University of California
Berkeley as part of the Berkeley UNIX system.
At the beginning the vi (visual) editor was part of the ex editor
and you had to be in the ex editor to use the vi editor.
The vi part of the ex editor was often used and became
very popular. This popularity forced the developers to come up
with a separate vi editor.
Now the vi editor is independent of the ex editor and is available
on most of the UNIX operating systems.
The vi editor is a good, efficient editor for everyday editing jobs
although it could be more user friendly.
Try the following commands. Observe the output and the command feedback (error messages on the screen and so on) on the screen
Create a directory structure in your HOME directory and try different commands until you feel comfortable with directories and file manipulation commands.
is it what you can do??