Database Programming

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Cluster systems are ultimately a brilliant discovery to the world of programming. The advantages are network unity, and the capability of managing work from different locations. They are cost effective, they are flexible. The disadvantage is all computers connected are easily effected by one malfunction. Since there is data sharing involved, it may make it easier to breech security efforts from one information system to the other.

Database as the name suggest is the collection of records or data that are related to each other. There are mainly three type of database network database, object oriented database and hierarchical database. Database helps in maintaining data consistency and data integrity.

Hi,

Natural Join: It is combination or combined result of all the columns in the two tables.

It will return all rows of the first table with respect to the second table.

Inner Join: This join will work unless if any of the column name shall besxame in two tables

the first one they can sometimes not save your work and second they breake down

Burst time is an assumption of how long a process requires the CPU between I/O waits.It can not be predicted exactly, before a process starts.

It means the amount of time a process uses the CPU for a single time. (A process can use the CPU several times before complete the job)

Advantages are that you will know where everything is and when things will be done. Disadvantages are they are difficult to make.

A database is used to record, retrieve, update business transactions which are occured daily in business life. A data warehouse is used to record historical data, purely for analysis purpose for top management.

The database holds the records, fields, cells ..with data. The DBMS is the "tools" used to manipulate the data in the database. An example of a DBMS is SQL Server.

The DBMS is the database engine itself. This is the core, the actual program that contains the logic to execute your SQL statements. performs that actual data access based upon these commands (relationaly).

whereas DS is linked with improving the speed of traversing and searching the data in main memory.

As we all know that the processor can only process the data that is available in main memory. Therefore the different models used to organize data in main memory are collectively referred as DS.

A main difference is that records management is associated with governance, risk, and compliance. Information management is the collection and management of information from one or more sources and the distribution of it to various audiences.

A facial recognition system is a computer application or device that can identify individuals based on their unique facial characteristics. Unlike many other identification methods (e.g., fingerprints, voiceprint, signature), they do not need to make direct contact with an individual in order to verify their identity. This can be advantageous in clean environments, for surveillance or tracking, and in automation systems.

Because the system keeps a reference model of the individual, and captures their image for identification, there may be concerns about how the system is perceived by its users. They may also be more error-prone when identifying individuals, due to the fairly recent development of the technology. In addition, if used for security purposes, it is considerably more expensive and complex than other methods, such as mechanical locks, passwords, or identification cards.

UART is universal asynchronous receiver/transmitter. It is a piece of computer hardware that translates data between parallel and serial forms. Modern ICs that have UART's that can also communicate synchronously are called USARTs (universal synchronous/asynchronous receiver/transmitter).

1. Redundency of data means some information may be duplicated in several places in file processing s/y .this can also be refined through DBMS.

2. Accessing of data is difficult in file processing s/y .to access the different data

we requried different program many times in other word for different type application requried different application program .

3. Multiple user can access the same data in DBMS.

4.Security also provided by DBA(Database adminstraror).

Data Source

It depends on the nature of the job. Supposing you are the database manager in cancer research, then you will have to organise the patient's data with respect to a particular treatment, say for example radiation treatment. It will be more like a retrospective study. Or your job might be to enter the data in tables, organise using Microsoft access or Excel and you may also have to perform simple data analysis. Your job might also include writing reports and contributing to publications etc. I guess the responsibilties are diverse and entail many areas. Hope this helps Thank you Good luck

One example of everyday use of a database is the telephone directory. Another is your own personal address book.

You might also refer to the contents page or index of a book, or use a dictionary to look up the meaning, pronunciation or origin of a word; these are everyday databases, as are encyclopedias.

Schools keep a list - a database - of all students attending, and of students attending each individual class, as well as of all staff employed by the school; all employers keep databases of their employees.

An ER diagram is an entity-relationship diagram they show individuals and their links to each other. An ER diagram for a hospital management system would be a flow chart showing hospital staff, equipment, patients, records and more.

Larry Elson.

Yes.