Database Design

Go to technologystudent.com its quite good its 4 kids but secondary school and up

it looks really weird at first but have a click around and u should find some useful stuff!

hope this is helpful!!

It is a systematic approach to integrated product design or product that emphasizes the response to the customer expectations and the combination of uniqueness and engineering. Concurrent Design mainly focuses mainly on the early phases of the project or product. Its central concept is the use of collocated sessions during which the team shares and discusses all design aspects in a structured way, usually in the presence of the customer.

RDBMS is a database that defines relation between table. RDBMS is acronym for relational database management system. Due to increased complexity overhead on the system will increase reducing the throughput and processing power.

Book Title: Simplified Approach of DBMS Publisher: Kalyani PPTs are available on request to parteek_bhatia@hotmail.com

The answer depends on the individual's technical depth, the mentor's technical history, and the environment or operational scale providing background for the experience. If the individual is really sharp in English literature and capable of sophisticated library database searches, then on the job experience will grant that person the competence to "do things right" under capable direction. Knowing how to do things right is important. Knowing the right things to do is more important. An example: a good technician with ample on the job experience can brag that they installed/configured the first LDAP server in the computer center. Successfully setting up the LDAP server is indeed a worthy accomplishment. However, is having a separate LDAP server with it's own data store replicating the enterprise data really the right thing to do? LDAP is a protocol. Why not make use of that protocol and run it against the enterprise data running on the existing enterprise servers? Unfortunately our technician can't see that the challenging task given to them is not the right task or solution for the organization. Nevertheless knowing how to do things right is a benefit of on the job experience toward a better architectural competence. Necessary but not sufficient.

An XA transaction, in the most general terms, is a "global transaction" that may span multiple resources. A non-XA transaction always involves just one resource.

An XA transaction involves a coordinating transaction manager, with one or more databases (or other resources, like JMS) all involved in a single global transaction. Non-XA transactions have no transaction coordinator, and a single resource is doing all its transaction work itself (this is sometimes called local transactions).

XA transactions come from the X/Open group specification on distributed, global transactions. JTA includes the X/Open XA spec, in modified form.

Most stuff in the world is non-XA - a Servlet or EJB or plain old JDBC in a Java application talking to a single database. XA gets involved when you want to work with multiple resources - 2 or more databases, a database and a JMS connection, all of those plus maybe a JCA resource - all in a single transaction. In this scenario, you'll have an app server like Websphere or Weblogic or JBoss acting as the Transaction Manager, and your various resources (Oracle, Sybase, IBM MQ JMS, SAP, whatever) acting as transaction resources. Your code can then update/delete/publish/whatever across the many resources. When you say "commit", the results are commited across all of the resources. When you say "rollback", _everything_ is rolled back across all resources.

The Transaction Manager coordinates all of this through a protocol called Two Phase Commit (2PC). This protocol also has to be supported by the individual resources.

In terms of datasources, an XA datasource is a data source that can participate in an XA global transaction. A non-XA datasource generally can't participate in a global transaction (sort of - some people implement what's called a "last participant" optimization that can let you do this for exactly one non-XA item).

SAE is an acronym for the "Society of Automotive Engineers" and when used in conjunction with tool grade or measurement (not oil), is a standardized unit of non-metric measurement. Simply put, in measurements it means "Non-Metric".

The name "SAE" used to grade motor oil has a totally different meaning, although instituted by the same society.

it's plastic, oil and metal

Sounds like a great project. Are you asking someone at WikiAnswers to do it for you? I don't think so.

It has no meaning in computer language; CVV is a card validation value, the 3-digit value on the back of credit and debit cards. If CVV has any meaning within a computer program, it is user-defined. You will have to look at the declaration of the symbol and/or how it is used in order to determine its meaning.

Physical systems are tangible entities that may be static or dynamic in operation. For Example, the physical parts of the computer center are the offices, desks, and chairs that facilitate operation of the computer. They can be seen and counted, they are static. In contrast, programmed computer is a dynamic system. Data, programs, output and application changes as the user's demand or the priority of the inforamation requested changes.

Abstract systems are conceptual or nonphysical entities. They may be models-the abstract conceptualization of physical situations. A model is a representation of a real or a planned system. The use of models makes it easier for the analyst to visualize relationships in the system under study. The objective is to point out the significant element and the key interrelationships of a complex system.

See the link below for more information.

one bit change at a time .

This is dependent on which operating system you have.

For example, Win95 uses FAT or FAT16, Win 98 uses FAT or FAT32, NTFS is on Win200, XP, Vista, 7

Mac OS X uses HFS+

And Linux-based OS's usually use ext4, ext3 or newer Btrfs, though can be installed on almost any filesystem in existence.

"Draw Data flow diagram of car dealer?"

small scale

Any sort algorithm where data is distributed from its input to multiple intermediate structures which are then gathered and placed on the output.

Is a logical description of some portion of database that is required by user to perform some task.

Since you have trouble spelling, you might have better luck retrieving the things you file in a database. However, neither one is better than the other. A filing cabinet is what you use when you have to store pieces of paper in an orderly fashion. You need to learn a filing system, or else you just have a big metal box that you can't find anything in. You then have to FOLLOW that filing system each time you put a piece of paper IN the filing cabinet in order to ever locate that piece of paper again later. If you can scan those pieces of paper, or better yet, never print out a paper copy in the first place, then a database can be a very powerful way of storing data, especially if you have LOTS of data that needs to be searched and accessed for meaningful results. If you needed to provide the list of all the voters in 3 counties to your election committee, it would be an incredible nightmare to attempt this with a filing cabinet. A database could be set up and once you learned how to use it, (months), you could produce a list in less than 30 seconds if it was a simple search AND if the data was already in a format the database could use. If you only have a few dozen invoices to file for a company, then a filing cabinet is a very logical choice. On the other hand, my mother wanted a list of all her DVDs printed out, so that she could tell whether or not she already HAD a copy of a given movie. That way, she wouldn't buy too many duplicates. It could have been done either way, but in the end, the database won out, because it was much easier to sort the list alphabetically on the database than it was by hand. You have to learn what applications are best for the filing cabinet, and which are best on the database. If you know how to use both, you will know how to decide this for yourself. Otherwise, you will have to explain what problems you need to solve and how much training you have with either filing cabinets or database programs. Then someone could give you useful advice, but you will still have to make the final decision yourself.

i would call it the gain of the wood.

Three examples of business needs for a system are: maintain or improve the competitive position; perform a business function more efficiently; and take advantage of a new business opportunity.

The primary purpose of cleaning up data is to free up storage space. Computers often acquire a number of files that, over time, are no longer necessary to the operation of the system or of any value to the users on the system. When this point occurs, the data can be safely removed. As data builds up, the computer starts to run out of resources, and must eventually be cleaned up to improve performance and make it easier for users to find the files they are looking for.

Cleaning up data can also be of benefit when users notice that it is simply too difficult to find the files they are looking for. Preemptively cleaning up data can avoid the slowdown associated with neglecting the task for a significant period of time. The longer that data cleanup is put off, the longer it will take to perform, and the slower the system will operate until this is done. Data cleanup for computers is roughly the equivalent of performing regular oil changes on a vehicle or maintaining the strings on a music instrument.

Hand Tracing

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Programming Logic and Design by Tony Gladdis

what do you mean by 50 KA for 1 sec

When designing graphics to be seen on computer monitors. e.g. Internet graphics and personal pictures.