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Why you need primary key and foreign key?
In sql you use primary key more than one column in a table
Using a 20-bit key is how many times more secure than using a 18-bit key?
four times. adding 1 bit to an encryption key makes it twice as hard to crack.
How can you tell the difference between a key signature in major or minor?
In a major piece, it will sound much more livelier, but in a minor key, it will sound more sadder. like in the piece: Notturno, by Grieg, it is in a minor key, therefore it sounds much more sadder than the piece: Le Petit Negre, by Debussy.
What is an often key word in a multiplication or division problem?
for multiplecation: product. ex.) what is the product of 6 and 5? for division: quotient. ex.) what is the quotient of 4 and 2?
When would you use a Primary Key and when would you not?
A primary key is a key that is unique. A primary key is used to identify a record uniquely. There is not any particular case to not have a primary key . If you want to identify your records you should have a primary key or a surrogate key(as an alternative to it) .In reality, you should always have a primary key. A primary key is there to uniquely identify each record, as it is like other elements would be duplicated. If you had a very large amount of names of people, then it is highly likely that the same firstname or same surname or even the same full name will come up more than once. Having a primary key distinguishes them as each primary key has to be unique.Situations where you might not use it is where you have a very defined set of values where there is guaranteed to be no duplicates, like a database that has the 12 months of the year or a list of regions that all have different names. You still could make them primary keys, but in the case of the months, it would change them into alphabetical order, which you would not want, so that would be another reason for not using a primary key. To keep them in order, you could add another field, with the values from 1 to 12 and use that field as the primary key.
Can a champions online product key be used more than once?
No
What is the difference between product activation and validation with Microsoft Windows?
It is mostly the same thing you got to give you product key to the windows server or you have to activate it over the phone if you do not have internet on the computer. If you fail to activate it within the given amount of days then you will be locked out for you computer until it is activated.
Why cant the letters of a polygram be used more than once?
The item is a key item
Where can you find your product key?
The product key for software is usually found on a sticker on the package. When you buy software via download, your product key is sent to you digitally. Product keys are used to verify that you are the owner of a verified copy of the software, and the key can be used only once, or by the verified owner when changing computers. Pirated software may have a product key, but usually it is invalid and once read, can indicate that your copy is pirated. Most pirated software lacks a product key.
Can you use the same Windows XP disc on two different computers?
A product key should be used ONLY for 1 computer. The product key should not be used more than once. However, if you have used a product key more than once, the product key can be changed without re-installing the operating system.
What is the code to a rebatle arceus?
You cant. The item is a key item and you cant use it more than once
How many times can you use a Windows 7 product key?
Unless otherwise stated, once and once only.
This product is the key code only.?
You have purchased a product that can be activated using a key code rather than a physical copy or download link. You will need to input this key code to unlock or access the product's features or content. Be sure to keep the key code safe and secure.
How does one enter a Windows Vista product key on a laptop?
A product key will usually be found on the package of the computer or on the laptop itself. When you start The laptop with Vista windows you will automatically be asked for the key which you will need to input to proceed.
What is following of synthesis reaction?
In a synthesis reaction, two or more substances combine to form a single product. The reaction typically involves the combination of elements or simple compounds to produce a more complex compound. The key characteristic is that the product is more complex than the reactants.
Is there any way to legally get Microsoft Word for free?
No, there is no legal way to get Microsoft Word for free. Every time you install Microsoft Word and the rest of Microsoft Office, you must enter a product key, which can only be used once and only once. Once the product key is used, it is no longer valid. This product key prevents people from simply copying the software from the computer and giving it out for free in any way. You must pay for the software at your local electronics retail store.
Where can one obtain a free download of Norton Antivirus that is not a trial version?
The only promotion that Norton is offering right now is a 6 month free trial when you use the trial product key. When you create a new account with them they will email you the information to obtain your product key. Once you have the product key you can continue setup of this software.
