Database Programming

repeater

By data conversion we mean the data is first processed. The data after processing is ready to store in database. And from the database we can retrieve it for our use.

Many small businesses choose a manual payroll system over a computerized one. Four advantages to this are it is less costly to set up, there is less training involved, no danger of losing data in a computer crash, and it is more personal to the employees.

A Data Flow Diagram at level 0 starts with the management of products, which is controlled by the store keeper whose responsibility it is to respond to the demand for products. Level 0 is a simple flow diagram with only one channel. At level 1 an administrator will register, update, and search products then inform a store keeper of demand. The store keeper will respond to the demand and report back to the administrator.

Reduced content for bandwidth

Increased fault tolerance of the network

Simplification of management and troubleshooting

...an engineering control system

Yes True

In the early file based system their all data was in written form, due to the lake of education, due to the in-femelarity with new techniques, lake of computer knowledge so all the data required would be stored in a file or files owned by the programs.

Clearly, each program was responsible for only its own data, which could be repeated in other program's data files. Different programs could be written in different languages, and would not be able to access another program's files. This would be true even for those programs written in the same language, because a program needs to know the file structure before it can access it.

Granularity refers to the level of detail or summarization in the units of in the data warehouse (Inmon, WH 2002). For example, one of the dimension might be a date/time dimension which could be at the year, month, quarter, period, week, day, hour, minute, second, hundredths of seconds level of granularity. High granularity means that the data is at or near the transaction level, which has more detail. Low granularity means that the data is aggregated, which has less detail.

I shall give you a solution to what i think it is, if i am wrong, post back with further queries.

First of all what tables you need depend entirley on what information your company is interested in retaining. I will assume all and you can delete as nesseccary

First of all there should be a person and a product table:

PERSON (person_ID*, name, start_date, end_date)

PRODUCT (product_ID*, name, description, price, colour, weight, size, stock, start_date, end_date) //add more fields as nesseccary

if you want to keep track of your staff make a staff person table:

STAFF_PERSON (sp_ID*, staff_ID, person_ID, start_date, end_date) //assuming a staff table exists already

Then you are going to want a customer table:

CUSTOMER (customer_ID*, person_ID, name, start_date)

Then tables to connect customer to person and customer to product:

CUSTOMER_PERSON (cp_ID*, customer_ID, person_ID, start_date, end_date) //this is to keep track of your customers names and other details that might be in the person table

PRODUCT_CUSTOMER (pc_ID*, customer_ID, product_ID, staff_ID, start_date, end_date) //this is to keep track of which products have been sold to which customers. (I put the staff_id in this in case you need to know who sold it for commision)

This is only a very simple solution, but I think it will give you the gist of what needs to be done. If you need more help with, or I didnt answer your question then just repost here and i wil get back to you.

laleo

• Naïve (or Parametric) end-users are the largest section of end-user population , they Use previously implemented and tested programs (called "canned transactions") to access/update the database .
• Stand-alone end-users Mostly maintain personal databases using ready-to-use packaged applications.

Database systems can support multiple types of languages, including data definition language (DDL) for defining database schema, data manipulation language (DML) for querying and updating data, and data control language (DCL) for managing access and permissions. Additionally, some database systems support procedural languages like PL/SQL or T-SQL for writing stored procedures and triggers.

Because it often concentrates on a single subject area or line of business, a data mart may be built more quickly and at a lower cost than a data warehouse.... displays data as it would be seen by end users.

To learn more about data science please visit- Learnbay.co

Existing as or involving something that exists as an unproven idea, theory, or possibility

Chuka ne stapone hado tader.

semicolon (;)

* DSS is the system for helping managers, administrators, high authority to take decision in any business organization.

* KLS is a part of DSS (There are two parts of DSS as- Knowledge Lean System & Angie system)

Engineer requirements should be higher, on the application of large databases to achieve proficiency or proficiency level, so the relatively low level of development engineers database, the cost is lower. Data architects, general business needs one or two. Of employment database development engineer is the most extensive. Here are some cases for reference only. (Www.myelibrary.net)

The method of logarithms was first publicly propounded in 1614, in a book entitled Mirifici Logarithmorum Canonis Descriptio, by John Napier, Baron of Merchiston, in Scotland (Joost Bürgi independently discovered logarithms; however, he did not publish his discovery until four years after Napier.) Early resistance to the use of logarithms was muted by Kepler's enthusiastic support and his publication of a clear and impeccable explanation of how they worked.

er travel agent؟

E.R diagram of hotel

A relation may be in 2NF if

1. it is in 1NF &

2. Every non prime attribute functional dependent on primary attribute

It is used as the unique identifier for each record and is used to sort the data

it does not require skilled labour neither source of power