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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
How many megabytes makes 10 gigabytes?
== == Thare are 1,024 megabytes in a gigabyte, so 10,240 megabytes makes 10 gigabytes.
Classification of computer according to processing?
Computers are designed according to the data they are supposed to process. In this regard there are three types of computers Analogue, Digital and Hybrid.
Why does it make a weird noise when you touch in with a zip oyster card?
it shows your oyster is a zip card its free if your over 18 it makes a difrent noise to show your over 18
What is the difference between null in c and in oracle?
A NULL in C is a pointer with 0 value, which cannot be a valid address.
A null in Oracle is the condition of not having a value, such as a field in a row being null, meaning that it does not have a value. This is not the same as zero - zero and null are two different things.
Note, however, that Oracle does not differentiate between a null and a zero length string. This was an error in non-ANSI implementation made many years ago, but it has persisted because fixing it would impact too much "running" code.
Explain in details the importance of memory to the system?
If we didnt have memory then we would have no feelings or emotion !!
Difference between parse tree and syntax tree?
Parse trees (also known as Concrete Syntax Trees) contain every token of the input as a leaf, and the interior nodes are nonterminals in the grammar used to parse.
Abstract Syntax Trees omit much of the detail that would be present in a CST. There are still leaf nodes when the associated tokens are information-bearing (such as identifiers and literals), but, for example, keywords and punctuation are not present in an AST. The interior nodes represent language constructs as defined by the grammar. An AST for an "if" statement (for example) would consist of one node to represent the "if" construct, and two or three subtrees, one for the "if" condition and another one or two for the "the" and optional "else" parts. The CST for such a construct would also contain the "if"/"then"/"else" keywords, such that you could walk the tree to obtain the original token sequence.
What organizations use databases?
Today, nearly ALL organizations use databases.
For examples:
- a school to keep contact records of everyone,
- library to see who is borrowing books,
- a doctors surgery
- normal shop
- police station
- and so on...
referential integrity constraint
What is Item Category and item sets in oracle application under inventory?
Item Category is grouping of items. Item Category Sets is grouping of Item Categories. An item can belong to any number of category sets. We can assign item to one category within each category set. The categories can be retrieved from the table 'mtl_categories_b' and item category set from 'mtl_category_sets_b'. The list of categories for a category set are the categories with the same flexfield structure as the category set.
No unique can not be nulll....unique must have any unique value for unique identification.,...
Which network configuration allows each node to communicate directly with every other node?
aircel 3g network, i need 6p traffic node configuration
Bit depth does not affect file size?
Actually, Bit depth will affect file size. For example:
1-bit=2kb 4-bit=21kb 24-bit=24kb
Diagram of 91 Chevy beretta muffler system?
http://www.autopartswarehouse.com/images/product_images/images/walker/18358.jpg
Give atleast 5 real life examples of circular queue?
Application of queue-
1. Task waiting for line printer
2.Time sharing by CPU
3.access to disk storage..
I am not able to find out any application of circular queue..It would be great if anybody help me out
the purpose is to investigate and improve your knowledge about something by searching for extra info on the subject
Each database lists the hardware requirements in their install guide.
What is Guarantee management system?
Guarantee
Definition: In law and common usage: A promise to answer for the payment of some debt, or the performance of some duty, in case of the failure of another person, who is, in the first instance, liable to such payment or performance; an engagement which secures or insures another against a contingency; a warranty; a security. Same as Guaranty.
One who binds himself to see an undertaking of another performed; a guarantor.
The person to whom a guaranty is made; the correlative of guarantor.
Management
. Management is generally defined as the art and science of getting things
done through others. This definition emphasizes that a manager plans and
guides the work of other people. Some (cynical) individuals think that this
means managers don't have any work to do themselves. As you'll learn in
this book (if you don't already know it), managers have an awful lot of
work to do.
System
A system is a set of interacting or interdependent components forming an integrated whole.
A system is a set of elements (often called 'components' instead) and relationships which are different from relationships of the set or its elements to other elements or sets.
Advantage and disadvantage of command system?
advantages.:
Maximises the continues utilization of resources.
Distributes wealth equally among all peoplce so there are no inequalities.
Only products that are required are produced hence prevents production of socially undesired products. Disadvantages.
Lack innovation.
Can not detect consumer preferences accurately.
Resources are misallocated as consumer demands are not satisfied by production.
overstaffing problems, poor product quality, lack of efficiency.
