ER stands for Elimination Related
SELECT * FROM user_constraints WHERE table_name='TABLENAME';
NOTE : Here TABLENAME should be in UPPER CASE LETTERS
Yes. Download the Oracle instant client (or other versions) from Oracle's website.
components of er model are :-
1. external entity
2. relationships :-
one to one , one to many , many to one , many to many
Here is how to open a Windows Shortcut file Using VB6. This is a safe and documented method.
Create a New VB6 Project
In the Project References Add "Windows Script Host Object Model"
Place a Command Button on the form named CommandButton1
Click on CommandButton1
Private Sub CommandButton1_Click()
Dim Oshell As New WshShell
Dim Osh As WshShortcut
Dim Fn As String
Dim Otarget As String
'Set the path and file name of the shortcut
Fn = "C:\shortcut path\shortcut filename.lnk"
' If the shortcut file is existing, it will open the existing file
Set Osh = Oshell.CreateShortcut(Fn)
Otarget = Osh.TargetPath
' Using the Watch window see the other properties of Osh object
SIDS (Sudden Infant Death Syndrome) is the death of an apparently healthy infant that remains unexplained after a thorough autopsy and death scene investigation. There appears to be no suffering in most cases; death occurs very rapidly, usually during sleep. SIDS is the leading killer of infants between one week and one year with an approximate rate of two per thousand live births (1 in 500). 6,000-7,000 babies die of SIDS every year in the US. The peak age is around two to four months and the majority of the deaths occur during the winter months (October to April in the Northern Hemisphere). Researchers believe that SIDS probably has more than one cause, although the final process appears to be similar in most cases. SIDS can not predicted, prevented, or reversed. [This was excerpted from a FAQ in misc.kids. Copyright 1995, Margaret Gibbs. Use and copying of this information are permitted as long as (1) no fees or compensation are charged for use, copies or access to this information, and (2) this copyright notice is included intact.]
This is really simple. There are probably hundreds of places on the net that tell you how to do this, but the simplest way is to ensure that all of the computers have ethernet cards. Have all of the computers connect to a hub, including the server. Go into the control panel, then networking and setup all of the ethernet cards to support Netbeui. From there, on the server, right click on the folder you want to share and give it a share name. Then right click on my computer on each workstation and select map network drive and use the following pattern to map your drives: \\servername\sharename.
Read this for a more step by step explanation: http://www.hardwarecentral.com/hardwarecentral/tutorials/3/1/
First we understand the concept. windows 2000 proffessional is not the server OS. this is the client OS. for client server technology server must be the server OS like windows 2000 server or NT server. client may be any OS. If u configure windows 2000 professional and win98, this is as the workgroup model. this not the client server technology. this is normal networking in LAN.
1. Faster processing of query
2. Lesser cost per query
3. High performance of the system
4. Lesser stress on the database
5. Efficient usage of database engine
6. Lesser memory is consumed
I want to wish you the best of luck. I would start off Number one by haveing a really good network admin. If your an Admin then you have some work. Number one Microsoft IIS, Oracle 9iAS, and the SQL server should all be stand-alones. You would have to link computers together with atleast a 10-Base-T hub. Call network something and make all Gateways, ISPs for these "servers". You would also need to have the "Servers" auto-handshake ISPs from other computers. HAve the Linux machines and windows machine tied into network. the windows machine would be easier to config. Make sure that you have made the "workgroup" name for the servers. That's going to help the XP machine reconize the "servers". For the Linux boxes, I have not really worked with Linux sence RedHat 5.0 but more than likely you are going to need to get dynamic ips for those boxes and have those dial direstly to the "SERVER" that you need to use at that piticular time. I hope that this helps minimally, Your taking on a task that most Admin would not you have 5 diffrent platforms that you are wishing to use in this network. The easy ones to takle is the "SERVERS" the ones that is going to be hard is the crossing of Linux and XP.
At a Linux prompt type env. Look for $ORACLE_SID. Or type echo $ORACLE_SID.
The stock symbol for software and technology company Oracle Corporation is ORCL.
What is exact expansion for the term ORACLE?
A canvas view is the background object on which you layout the interface items(textitems,check boxes,radio groups and so on)and boilerplate objects that operators see and intaract with as they run you form.At runtime ,operators cansee only those items that have been assigned to specific canvas.each canvas,interm,must be displayed in specific window
An ER-Diagram is used for developing databases.
But if you want us, to develop an database for an library management system - then you are at the wrong forum.
Entities are the things you're keeping track of. In an video rental database, you keep track of customers, invoices, titles, copies, etc. These are represented in tables where the rows are individual instances of a customer or title. The columns are the attributes, the things that tell us about the instance in the row. The customer's name, address, city, balance, etc. are attributes that help identify the customer. An invoice's attributes might be price, number, date, paid/unpaid, etc. Databases link entities/tables so that a customer, described by his attributes, can be associated with his invoices, describe by his attributes and selected by the invoices 'unpaid' column. "Here's your bills for the last month, Mr. Smith."
Ten common software packages that provide DBMS functionality include:
A DBMS, or database Management System, is a collection of programs that enables you to store, modify, and extract information from a database.
DBMS stand for data base management system
We normally use dbms systems to improve the management of the data and accesss of the data too.
well if the data is in normal form it is very easy to access it as well as manage it for the system.
In the process of normalization we increase the normality of the data by removing the dependencies redundancy applying the entity integrity and referential integrity.
there are many stages of Normalization process..:
4. BC NF
While the above answer is not incorrect, I don't believe it properly answers the question in a way that anyone who is not already a database expert would understand. The question is this: Why do we need to normalize data in a database. Here is the answer:
First, in order to answer this you have to understand what normalization is. Normalization is the process of removing duplicate information and dependent information from a database.
Lets say for example you have two tables, one called 'employees' and another called 'addresses'. In the employees table you include a field called 'city' and you also include this field in the addresses table. The reason you might do something like this is that you want to be able to get a basic idea of where your employee lives without having to look up the address so you include it in both locations.
Why is this bad? well it should be obvious but here it is. Its bad because it allows for inaccuracies. What if the employee moves and changes his address and you forget to change the city listed in the employees table (or your system crashes while you trying to do it)
the proper way to do this would be to not have the 'city' field in the employee table and instead have a reference to the address table. When querying this info you need to join the two tables and this will ensure that you always have the correct info.
Bob Miner and Ed Oates started the consultancy Software Development Laboratories (SDL) in 1977. SDL developed the original version of the Oracle software. The name Oracle comes from the code-name of a CIA-funded project Ellison had worked on while previously employed by Ampex Includes - We provide individual and corporate training Educate, Learn & Serve Inclus.net
At a very high level
Oracle Apps Functional Consultant -> One who understands business flows/processes and ways to do setup/tweak in oracle application to suite business needs.
Oracle Apps Technical Consultant -> One who understands the oracle application architecture and table-relations etc.
Shareplex is used to replicate an Oracle database. It uses the redo logs/archive logs to replay the transactions on the replicated database. It is a from Quest Software.
Please refer to the link below for more information.
By using ODBC
Present day, it has to be Andre Johnson. He has great hands and run after the catch.
All time would have to be Jerry Rice, work ethic and route running
strong entity is the entity that can stand alone
weak entity cannot be exist alone.
usually strong entity represent an real world entity such as course , student, patient, ward, department, employee,.... etc
the weak entity represents the relationship between two entities, so in connot be exist alone, there must be two strong entities that the weak entity will connect.
Database system is a general term that refers to the combination of a database, a database management system and a data model. This system is responsible for the data manipulation actssuch as data controlling, data retrieving, data maintenance and data definition.
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