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ExtensionThe extension of a given relation is the set of tuples appearing in that relation at any given instance. The extension thus varies with time. It changes as tuples are created, destroyed, and updated.
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Q: What do extension and intentions of relations mean in dbms?
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What do you mean by file oriented system?

Prior to the use of DBMS Traditional file processing system were in use . These were the system that are used as database that time. These system do not supports the query.


How can the complexity of a DBMS be a disadvantage?

Developing a database application means converting your data into types understood by the DBMS, generating SQL code, sending it to the DBMS for evaluation, retrieving the result, and converting the result into types understood by your application language. It's even more strange when you use parameterized SQL: you generate some code with placeholders instead of literals, and then you send the literals separately (by "more strange," I certainly don't mean "worse," - parameterized SQL is a huge improvement).


What does MPG mean in computer terms?

MPG stands for "multi-player game." Also, the file extension for MPEG-1 video files, is .mpg .


What does Adoc extension mean?

In Lithuania it is used as a file extension of an official electronic document. This electronic document must be compliant with the requirements of specification ADOC-V1.0 of the electronic document signed by the electronic signature, that was approved by Archives Department under the Government of the Republic of Lithuania in September 2009.


What are the two wild card characters that can be use in command line?

* matches anything. *.jpg would mean any file with a .jpg extension. 1*.jpg would mean any file where the name begins with 1 and ends with a .jpg ? matches any single character. ?.jpg would match a.jpg, 1.jpg, or F.jpg but not a1.jpg. Several ? wildcards can be used so that ??.jpg would match any jpg file with a two letter name.

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what do u mean by lossiess join in dbms


What do you mean by Schema in DBMS?

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What does the phrase 'intentions are irrelevant to effects' mean?

intentions are what you mean to happen, or what you plan on doing irrelevant means that it does not matter, or is not important effects means what happens "Intentions are irrelevant to effects" means that what you mean to happen does not matter; what actually does happen is what matters.


What does this mean it is clear what your intentions are?

They understand your motives.


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I t is a file extension for "Stopizilla"


What is intelligent internet system in dbms?

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What does it mean when a guy asks you what are your intentions?

Normally this question is asked from the father of the girl you are dating. The parent(s) normally mean what sort of intentions do you have with their daughter. Love or marriage is possibly the best thing to say in these circumstances even if these aren't your intentions.


Extension and Contraction of Demand?

extension and contraction in demand. extension mean increase in demand and contraction man decrease in demand


What does 'Hell is full of good intentions' mean?

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What do you mean by degree in DBMS?

It is the number of attribute of its relation schema. Its is an association among two or more entities..