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What is relation instance in DBMS?
In DBMS, a relation instance refers to a particular set of data rows within a database table at a given point in time. It represents the actual values stored in the database for that specific table. Each row in a relation instance corresponds to a record or tuple within the table, containing values for each attribute.
What is extension and intension in dbms?
In database management systems, extension refers to the actual data values stored in a table, while intension refers to the structure of the database, including its schema, constraints, and relationships between tables. Extension represents the instances of the database elements, while intension represents the definition or blueprint of those elements.
How do you get servlet context instance to servlet?
You can get the ServletContext instance in a servlet by using the getServletContext() method provided by the HttpServlet class, which is the base class for servlets. This method returns the ServletContext object associated with the servlet. For example: ServletContext context = getServletContext();
What is instance in peoplesoft?
In PeopleSoft, an instance refers to a separate installation of the PeopleTools software and databases, used to run a specific set of applications or modules. Each instance is usually dedicated to a specific environment, such as development, testing, or production. Instances allow for isolation and customization of settings for different purposes.
The collection of informations stored in a database at particular moment is called?
The collection of information stored in a database at a particular moment is called a database snapshot. It provides a point-in-time view of the data captured during the snapshot creation. This snapshot can be used for reporting, analysis, or backup purposes.
What is the Difference between relation schema and relation instance?
difference between relation sehema and relation instance in dbms
What is relation instance in DBMS?
In DBMS, a relation instance refers to a particular set of data rows within a database table at a given point in time. It represents the actual values stored in the database for that specific table. Each row in a relation instance corresponds to a record or tuple within the table, containing values for each attribute.
What is the definition of removals in relation with business companies?
Removal in relation to business companies is when a person in a certain position is relinquished of their duties. For instance, if a person is the CEO of a company, and is removed from that position, they are no longer the CEO of that company.
What does home phone?
In relation to software, it usually means to connect to the server of the developer (Microsoft, for instance) to validate itself and check for updates.
What do extension and intentions of relations mean in dbms?
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.
What does phone home mean?
In relation to software, it usually means to connect to the server of the developer (Microsoft, for instance) to validate itself and check for updates.
What is An example of an absolute location is?
Relative location would be given in relation to somewhere else. For instance, "three houses down the street from mine." Absolute location is given as a particular place that does not change. For instance, "123 Main Street."
What are depictions in relation to art?
A depiction in relation to art is a still representation of an action related situation. For instance, The Mona Lisa is a depiction of a woman with a mysterious mood and somewhat vague affectations, a period piece used to convey a feeling of a particular time and space.
Can the train appear to be rest at rest while moving?
Yes and no. All motion is relative. When you say you are moving you mean in relation to something else. If are on the train and you choose something that moving alongside you at the same speed (another train for instance) then you are not moving relative to that, however you are moving in relation to the countryside. Both trains are moving in relation to a cow in the field.
What is an non example for function?
A non-example of a function is the relation where a single input corresponds to multiple outputs. For instance, if we consider a relation that assigns a person to their favorite colors, where one person can have multiple favorite colors, this does not satisfy the definition of a function. In a function, each input must have exactly one output. Thus, the relation fails to meet the criteria of a function.
What is an example of relative ocation?
An example of relative location is describing a place in relation to another place or landmark. For instance, "The library is located two blocks east of the post office."
Is not a function if the skeleton?
In mathematics, a relation is not considered a function if it assigns multiple outputs to a single input. In the context of a "skeleton," it may refer to a graph or set of points that do not adhere to the definition of a function. For instance, if a vertical line intersects the graph of a relation at more than one point, it confirms that the relation is not a function. Thus, a function must pass the vertical line test to be valid.
