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Database Programming

Databases are collections of tables that maintain and display information, often collaboratively; this information can be used for interaction with an application or gaining general knowledge. Questions about database engines and modifying or using them belong in this category.

8,803 Questions

Why 4NF is more desirable Normal Form than BCNF?

Because 4nf minimize the redundancy as well as make storage management..

What types of data might a sales manager need to track?

Sales inventory,

Shipment time frame,

customer service,

Replace Inventory,

Track sales persons selling list

Write a program to find the address of the data stored in the memory using c?

#include <stdio.h>

static int statv;

int main (void)

{

int localv;

printf ("static at %p, automatic at %p\n", &statv, &localv);

return 0;

}

Define civil technology?

is the application of technology to improve humanlife, by using calculations, knowledge of structure and problem thinking techniques to enhance or develop society e.g.

  • building roads to improve accessibility
  • building flats to use available space efficiently etc

Why are reports in database useful?

businesses need report beacuse they are useful

What is database accuracy?

Disclosed which assists in finding errors in a reference database by making comparisons to an interchange database. The reference and interchange databases containing first and second groups of related data strings. The data strings from the first groups are compared to find matching datmatch. When no matching conditions are detected, an error indication is generated.

How do you convert dBm to watts?

dBm is defined as power ratio in decibel (dB) referenced to one milliwatt (mW). It is an

abbreviation for dB with respect to 1 mW and the "m" in dBm stands for milliwatt.

dBm is different from dB. dBm represents absolute power, whereas in audio engineering the

decibel is usually a voltage ratio of two values and is used then to represent gain or attenuation

of an audio amplifier, or an audio damping pad.

Define various types of database users?

There are following types of users:

§ Database Administrators

§ Security Officers

§ Network Administrators

§ Application Developers

§ Application Administrators

§ Database Users

When a wireless workstation is using passive scanning how does it locate an available access point?

By listening for a special signal known as Beacon Frame.

Network + Guide to Networks. page 375

What is accumulated oci?

accumulated other comprehensive income

Difference between network model and hierarchical model and relational model?

The relational model is a model in which data is isolated by object and foreign keys to those objects which is organized in tables with multiple columns or attributes. The hierarchical model is a model in which the data is organized in a tree structure that allows repeating information using parent/child relationships.

What does Net kph mean in Data Entry?

In Data Entry, KPH would mean keystrokes per hour, with 'Net' referring to the overall keystrokes minus errors. Just like a paycheck represents a 'net' income minus deductions, Net KPH reduces your overall accuracy rate per hour.

What is Product-level activity?

Product - Level Activities relate to specific products and typically must be carried out regardless of how many batches are run or units of product are produced of sold. For example, activities suck as designing a product, advertising a product, and maintaining a product manager and staff are all product -level activities.

Managerial Accounting, 14th Edition, Garrison, (2012)

How formal arguments are stored in function?

On the stack; they are addressed via register SP or BP.

What are the advantages and disadvantages of spreadsheet software?

Advantage:

Spread Sheets are basically giant Powerful Calculators

Disadvantage:

If you do one formulae wrong the whole spreadsheet will go wrong and you may have to start again