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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
What is the relationship between JSP and JDBC?
There is no other relation apart from having Java in their names.
JSP is a technology that is used to create powerful User Interface components
whereas
JDBC is a technology that is used to connect to Relational Databases like Oracle or Sybase
Which protocol offers guaranteed delivery and is connection oriented?
Transmission Control Protocol (TCP) is used when data reliability is needed since it is connection oriented and guarantees delivery.
What are the main two types of products of cracking and what are they used for?
Smaller alkanes and alkenes
How are logical groups of data elements available to you when you create a flex data report?
I select the report template that contains the data elements I want to work with
The dcl is actuaslly the control center where you plug in a reader for reading the trouble codes it is located either in the passenger compartment under the dash on the drivers side or under the hood on the firewall depending on the model
What are the determinant attributes?
Determinant attributes are the characteristics that are important to your customers, yet distinguish your products or services from competing products or services."
A social queue is the ability to pick up on, or read someones behavior, and then act upon good judgement to not interefere with said behavior. Examples:
Scenario 1: If someone obviously looks busy, you dont bother them.
Scenario 2: If someone is sleeping, you do not wake them.
Along with said social queues, there will always be that one person who can't quite understand and will cross that invisible boundary. Do everyone a favor and pick up on those social queues so you aren't "that person."
What is the difference between Script and Query?
Script is a term used to describe programs that aren't compiled (that is, turned into 1's and 0's) first. A scripting engine reads the code exactly how you wrote it, and turns it into a computer program on the fly.
Query is just a fancy word for question, but on the web it generally means "SQL Query." An SQL query is a way of asking a database for information, that follows the Structured Query Language syntax. All SQLs are a bit off of the actual SQL standard, and you have to work with whatever version your relational database (RD) supports.
What is percedence of arithmetic operators?
The precedence (not percedence!) is BIDMAS (UK) or PEMDAS (US)
The acronyms stand for:
Brackets (Parentheses)
Index (Exponent)
Division and Multiplication which have equal precedence and are evaluated from left to right.
Addition and Subtraction which have equal precedence and are evaluated from left to right.
Here I have a www.myelibrary.net site, contains almost all database problem.
Explain a few of the different ways in which computers can be categorized?
Mainframe Computers
Used by large organizations, these computers tend to be considerably physically bigger than other computers, and their primary uses involve complex mathematical operations in bulk quantities. You can find these in meteorological institutes, statistical institutes, etcetera.
The term "mainframe" refers, broadly, to any computer that works as the head of many other smaller, usually more precise, computers.
Supercomputers
Similar to Mainframe Computers, these are computers that handle huge amounts of work and a great number of heavy calculations simultaneously. Used on big engineering projects, economic forecasts, etc..
Minicomputers
These are mainly used by business to maintain several accounts and finances in general. They can handle the workload of a 100 or more different users at the same time.
Microcomputers, a.k.a. Personal Computer, a.k.a. PCs
These are the most commonly known computers, and are meant for public use. Among microcomputers, the best known model is the Desktop Computer, which usually comprises a C.P.U, a monitor and peripherals, such as keyboards, mice, speakers and so on.
Besides Desktop PCs, these are some of the other types of microcomputers commonly used:
- Tablet PCs
- Laptops
- Notebooks
- Netbooks
- Hand-held Computers
- Work Stations
Also known as "narrow minded", a person that is not able to accept any other views other than his own.
Design an algorithm to show the different operations on a stack?
Design an algorithm to show the different operations on a stack?
What is the difference between object-oriented database and object-oriented programming?
Object oriented programming is a method of writing code that follows a certain set of rules. There are many rules but one main one is that the data that you define for an object in encapsulated with the functions that can be performed on that data. This is opposed to a procedural style of programming where there is no limitation of what data can be modified where and by what functions. The OO (Object Oriented) programming style lends itself to large projects where you might have many developers working and you want to keep parts of the code simple enough so that each developer doesn't have to be aware of every single thing that the other developers are doing.
An object oriented databases, are databases where the storage is designed around the virtual objects created in the code itself. This kind of database is inherently different than a relational database in that you are not concerned with normalization of the data. With this kind of database you have the advantage of being able to retrieve the information very fast due to the fact that you are not joining many tables (assuming you are using SQL) but you have the disadvatage of your data possibly getting corrupted/denormalized.
csv flat file. I have this class now, you are welcome
Is it possible to change the data type for a field that already contains data?
You can change the data type of an existing field using a union, however, you should understand that bit format dependance is not portable usage, and that you should initialize the field every time you change your desired type.
Answer: without specifying the context, this question cannot be answered.
What are the different data types suppourted by c.give example?
data types supported by "C" are int , float , char , long , double , uint
What is qualification and resposnsibility of system analyst?
The qualification of a system analyst is having postgraduate degree in IT fields and computer systems. Their responsibility is to evaluate and monitor systems so as to offer guidance on any possible challenges in the system.
Find the 2's complement of the number 0011010 by inversion-addition method?
~(Nrad2) + 1 (LSB).
In your example this would be:
~(0011010) :: 1100101
1100101 + 1 (LSB) = 1100110
I tried to generalize this since I didn't know if you were looking for a "little-endian" representation (lower address contains more significant bits in both data text and address syllable) or a "high-endian" representation, which is exactly the reverse/ In this case the "high-endian" data text would map to 0110011.
Answer1100110The only attribute of atheism is that we lack any belief in gods.
How to see data in formatted harddrive?
you cant. once you format it all of the data is gone forever just like the warning said right before you formatted it.
Who developed the concept of relational database?
Dr. Edgar F. Codd in 1970 in his book titled "A Relational Model of Data for Large Shared Data-banks".
