Database Programming

Collection is a composite datatype in oracle and it can also be called as pl/sql table which is used to store collection of similar datas as like an array of C.There are three types in collections

1.Associative array

2.Nested Table

3.Varray

It doesn't! Make a registry backup before making changes to the registry. Once a change is made it's final.

Use to keep infomation

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Data inconsistency exists when different and conflicting versions of the

same data appear in different places. Data inconsistency creates

unreliable information, because it will be difficult to determine which

version of the information is correct. (It's difficult to make correct - and

timely - decisions if those decisions are based on conflicting information.)

Data inconsistency is likely to occur when there is data redundancy. Data

redundancy occurs when the data file/database file contains redundant -

unnecessarily duplicated - data. That's why one major goal of good

database design is to eliminate data redundancy.

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A management information base (MIB) is a type of database used to manage the devices in a communications network. It comprises a collection of objects in a (virtual) database used to manage entities (such as routers and switches) in a network. The database is tree-structured and entries are addressed through http://www.answers.com/topic/object-identifier. Objects in the MIB are defined using "Structure of Management Information". The software that performs the parsing is a MIB compiler.Examples of MIB objects include: · output queue length, which has the name ifOutQLen · Address Translation table (like http://www.answers.com/topic/address-resolution-protocol tables) called atTable. MIBs are periodically updated to add new functionality, remove ambiguities and to fix defects.Simple Network Management Protocol (http://www.answers.com/topic/simple-network-management-protocol), a communication protocol between management stations, such as consoles, and managed objects (MIB objects), such as routers, gateways, and switches, makes use of MIBs. Components controlled by the management console need a so-called SNMP agent - a software module that can communicate with the SNMP manager. SNMP uses a specified set of commands and queries. A MIB should contain information on these commands and on the target objects (controllable entities or potential sources of status information) with a view to tuning the network transport to the current needs.

* Conceptual - a model that captured the essential data that needed to be stored and the relationships between elements * * ** Physical - the on disk representation of data that accounts for layout, partitioning, index, space management, etc.

Backup is only as important as your data.

Can you easily replace everything on your hard disk? If so backup is not important. Otherwise backing up can really save your bacon.

to share informations

entity set is term as a collection of logicaly related entities.

i knew how to draw the activity diagram fro video rental system but i dont know how to attach it here

a c c e n t i v r o y a l

DataBase Management System (DBMS)
is a software package
# it allows data to be effectively stored, retrieved and manipulated
and # the data stored in a DBMS packege can be accessed by multiple users and by multiple application programs like (SQL Server, Oracle, Ms-Access) .
Types of DBMS
# Hierarachical DBMS (HDBMS)
# Network DBMS (NDBMS)
# Relational DBMS (RDBMS)
# Object Oriented DataBase(OODB)
# Distributed DBMS (DDBMS)

in software houses,IT companies and often many fields

this is completely for gods sector. do what you say, serve to gods creative equal for serve to god.

Structured Query Language

The start-up utilities in Windows can run memory diagnostics for each DDR slot. Conversely, you can enter the command "mdsched.exe" in the start menu on Windows 7+ operating systems.

data flow diagram

for hotel management system

The magnetic card reader will require a credit or debit card to make contact with the reader. The magnetic card reader will read the numbers off of the card once contact is read in order to submit a debit entry from the card to the officiating bank.

I have the same question but well a not-so-elegant solution would be to define a view within your DBMS

e.g. CREATE VIEW view_name AS (SELECT ...your_query)

and then apply a SELECT COUNT(*) FROM view_name

in some cease both are the same they use query language but in fact the out puts are very deference

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