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TiliK225 [7]
1 year ago
12

After you use the create sequence statement to create a sequence, you can use the _______________________ pseudo column to get t

he next value in the sequence.
Computers and Technology
1 answer:
user100 [1]1 year ago
3 0

After you use the create sequence statement to create a sequence, you can use the NEXTVAL  pseudo column to get the next value in the sequence.

<h3 /><h3>How do you create a sequence?</h3>
  • You must have the Create any sequence system privilege to create a sequence in another user's schema.
  • Specify the schema that will hold the sequence.
  • If you leave out schema, Oracle Database will create the sequence in your own schema. Name the sequence that will be created.
  • Pseudo-columns allow selection, but you cannot edit, update, or remove their values.
  • A pseudo-column is analogous to a function that does not accept any inputs. This section goes over the two pseudo-columns, CURRVAL and NEXTVAL.
  • A pseudo column is a "column" that displays a value when a value is selected but is not one of the table's true columns.
  • Two examples are SysDate and RowID. It is frequently used in tandem with the DUAL table.
  • After you utilize the make sequence statement to make a sequence, you can utilize the NEXTVAL pseudo column to obtain the next value in the sequence.

To learn more about NEXTVAL, refer to:

brainly.com/question/13043887

#SPJ4

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Choose the two main capabilities involved in visual literacy
andreyandreev [35.5K]

The two main capabilities involved in visual literacy are:

<span>1)   </span>Communication through use of visual elements.

<span>2)   </span>Interpret meaning from visual elements.

<span>Visual literacy is the capacity to decipher, arrange, and make significance from data displayed as a picture, broadening the importance of proficiency, which means understanding of a composed or printed content.</span>

7 0
3 years ago
List out two ways to execute the script.​
castortr0y [4]

Answer:

1) Execute Shell Script Using File Name. Use the shell script file name to execute it either by using it's relative path or absolute path as shown below

2) Execute Shell Script Using Source Command.

7 0
3 years ago
Read 2 more answers
What are some tasks for which you can use the VBA Editor? i need help for my computer class.
Murljashka [212]

Answer:

Visual Basic for Applications runs as an internal programming language in Microsoft Office applications such as Access, Excel, PowerPoint, Publisher, Word, and Visio. VBA allows users to customize beyond what is normally available with MS Office host applications by manipulating graphical-user-interface (GUI) features such as toolbars and menus, dialogue boxes, and forms. You may use VBA to create user-defined functions (UDFs), access Windows application programming interfaces (APIs), and automate specific computer processes and calculations. Macros can automate just about any task—like generating customized charts and reports, and performing word- and data-processing functions. Programmers,like replicating large pieces of code, merging existing program functions, and designing specific languages. VBA can also work in non-Microsoft settings by using a technology called "COM interface," which allows commands to interact across computer boundaries. Many firms have implemented VBA within their own applications, both proprietary and commercial, including AutoCAD, ArcGIS, CATIA, Corel, raw, and SolidWorks.

<em>(Hope this helps/makes sense!)</em>

6 0
3 years ago
Consider an error-free 64 kbps satellite channel used to send 512 byte data frames in one direction, with very short acknowledge
Vladimir [108]

Answer:

The answer is "2".

Explanation:

In the given question some information is missing, that is "The propagation time for satellite to earth" which is "270 milliseconds" so, the description to this question can be defined as follows:

Given values:

Bandwidth = 64 kbps

Data frames = 512 bytes  

Propagation Time (t​​​​​​p ) =270 ms

Change Bandwidth  kbps to bps:

1 kb= 1024 bytes

calculated bandwidth= 64 kbps = 64×1024 bps = 65536 bps

1 bytes = 8 bits

512 bytes = 512 × 8 =  4096 bits

Frame length = 4096 bits

Formula

Transmission time (T​​​​​​t) = Frame length /Bandwidth

Window size = 1+2a

where a = Propagation time/Transmission time

Calculate Transmission time:

Transmission time (T​​​​​​t) = 4096 / 65536

Transmission time (T​​​​​​t)= 625 m.sec

Calculate Window size:

Window size = 1+2(270/625)

Window size = 1+2(0.432)

Window size = 1+0.864

Window size = 1.864

Window size = 2

3 0
3 years ago
You've just installed a new video card in a user's Windows workstation. When the system is powered on the screen is blank. You
valentinak56 [21]

After having verified that the video cable is installed correctly we should check to see that the computer's RAM is correctly fastened to the motherboard and functional.

The question states that the video card being installed is new, therefore we can comfortably assume that the card itself is not the issue. Other computer components that can cause a blank screen immediately upon powering on the workstation are:

  • RAM
  • Hard drive
  • Bad video driver.
  • Monitor input is faulty

however, assuming the installation was performed correctly, it is not likely to be caused by a bad video driver and a faulty monitor input is very improbable given that there are very few ways this can break to begin with.

A bad or missing hard drive may cause this kind of issue because the workstation will not have a windows file to boot. In most cases, this will not cause a completely blank screen without first allowing access to the BIOS.

After having verified that the video cable is installed correctly, the very next thing you should check is if the RAM is installed correctly. This is because the issue explained is exactly what will happen if a workstation attempts to boot without RAM, and also because it is the easiest fix among the possible causes and any troubleshooting should always be performed in order from the easiest fix to the most difficult.

To learn more visit:

brainly.com/question/2160588?referrer=searchResults

8 0
3 years ago
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