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Esc key. The next step is to save your work. The needed command starts with a colon followed by the destination on the disk you want to save the file to, and usually the preferred name of the file. The complete command might look something like :w mynewfile. If another file with the same name exists, vi will complain. However, if you re sure what you re doing is correct (and that your file s contents are different), you can silence vi by using an exclamation mark, as in the command :w! mynewfile.

Figure 5-7. Basing the P3_ASSIGNED_TO page item on LOV_USERS The problem now is that in the buglist table, the assigned_to field actually contains the old free-format text rather than using the username from the LOV. Also, if you set a new Assigned To value from the Update Bug screen, the value shown in the report on the home page will be the username (see Figure 5-8), rather than the nicely formatted full name that appears in the select list. You could change the LOV so that it stores the nicely formatted name; however, you want it to store the username for a reason that will become clear in a moment.

There s no such thing as vi automatically saving the files you re working on. You must do this by hand Tip

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By tasking out the user stories selected for the iteration, the team was able to focus on the details that are important to this iteration. That kept the discussion as brief as possible and focused on a smaller set of details. This helped uncover new information and details about features that would not have necessarily been discovered in a broader conversation. Lastly, we made sure that all the developers had signed up for as much work as possible without overcommitting themselves. Who knows what will happen during the iteration An unexpected technical problem could occur, or some other details not yet thought about could be brought to light during the iteration. If the team had signed up for more work at the beginning of the iteration than was reasonable for the members to complete, there would be a big possibility that they would not complete the iteration in the allotted time.

APEX applications can include references to many different types of static files, including Cascading Style Sheets (CSS), images (JPG, GIF, and so on), JavaScript libraries, and Flash movies. You can reference these static files in two ways: They can be stored on a file system that is accessible by the Oracle HTTP Server (OHS). They can be uploaded to the database via the Application Builder interface. Both methods have advantages and disadvantages, and you should be aware of how each method will affect your application. Whether you choose to store files on the file system or in the database will ultimately come down to how you intend to manage those files and whether they need to be used by other external systems. Uploading Static Files to the Database You can upload static files to the database simply by using a browser. This means that you can upload a new image to the database and use it in your application immediately, without needing to involve the person who is in charge of administering the web server. When you reference these static files in your application, they are actually downloaded to the end user s browser via a database procedure. For example, if you uploaded a static file called logo.jpg, you could reference that file in an HTML region in your application with the following line of code: <img src="#WORKSPACE_IMAGES#logo.jpg"></img> When that HTML region is processed, the #WORKSPACE_IMAGES# directive will be translated into something like this: <img src="wwv_flow_file_mgr.get_file p_security_group_id=16&p_fname=logo.jpg"></img>

Employing the write commands just mentioned, vi writes your file. Remember, Linux is a type of UNIX operating system and does just what you ask it to do, nothing more. If you want to save your file and close vi as well, you need to add something else to the command, such as :wq. To prevent vi from complaining, use an exclamation mark. This brings you back to your console where you can go on with your work. To quit vi without saving your changes, use the :q! command.

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