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What is the Distinction between condition defined and user defined constraints which of these constraints can system check?
In a generalization-specialization hierarchy, it must be possible to decide
which entities are members of which lower level entity sets. In a conditiondefined
design constraint, membership in the lower level entity-sets is evaluated
on the basis of whether or not an entity satisfies an explicit condition or
predicate.User-defined lower-level entity sets are not constrained by a membership
condition; rather, entities are assigned to a given entity set by the database
user.
Condition-defined constraints alone can be automatically handled by the system.
Whenever any tuple is inserted into the database, its membership in the
various lower level entity-sets can be automatically decided by evaluating the
respective membership predicates. Similarly when a tuple is updated, its membership
in the various entity sets can be re-evaluated automatically
What else can I help you with?
What are explicit constraints and implicit constraints?
Explicit constraints are clearly defined rules or limitations set within a system, such as specific requirements in a contract or predetermined boundaries in a mathematical model. Implicit constraints, on the other hand, are not directly stated but are understood or inferred from the context or framework, like societal norms or assumptions in a problem. Both types of constraints influence decision-making and outcomes, but explicit constraints are more visible and easily identified, while implicit ones require deeper analysis to uncover.
What is the main difference between a defined benefit plan and a definded contribution plan?
The main difference between a defined benefit plan and a defined contribution plan lies in how retirement benefits are determined and funded. In a defined benefit plan, the employer guarantees a specific retirement benefit amount based on factors like salary history and years of service, making it the employer's responsibility to ensure sufficient funding. In contrast, a defined contribution plan, such as a 401(k), involves contributions made by the employee and sometimes the employer, with the final benefit depending on investment performance, placing the investment risk on the employee.
How are a reasonable domain and range determined for a function?
By having some knowledge about the functions involved. The natural domain is the domain for which the function is defined. For example (assuming you want to work with real numbers): The square root of x is only defined for values of x greater or equal to zero. The corresponding range can also be zero or more. The sine function is defined for all real numbers. The values the function can take (the range), however, are only values between -1 and 1. A rational function (a polynomial divided by another polynomial) is defined for all values, except those where the denominator is zero. Determining the range is a bit more complicated here.
Mechanical advantage can be defined as the ratio of?
dick
What is the define of the word calorie?
The Calorie (the upper case "C" is relevant) is an obsolete pre-SI Metric unit defined as the amount of heat required to raise one kilogram of water one degree Celcius. As this amount depends on the starting temperature, one Calorie (strictly speaking, a kilocalorie) varies in value (approximately4.2 Joules) and has only been specifically defined as a Thermochemical Calorie (4.184 J exactly). Calorie continues in use only as a unit of food energy. Technically, "calorie" (lower case "c") is a gram calorie with a value one-thousanth of a Calorie, however, the distinction is often not made. The word calorie derives from Latin, via French "calor" meaning heat.
Explain the distinction between total and partial constraints?
Total constraints are those in which a table's existence requires the existence of an associated table in a particular defined relation between them. whereas Partial constraints are involved with the tables in which presence of one table is partial for the associated table.
What's the difference between a pension and a 401k?
The biggest difference between a 401(k) plan and a traditional pension plan is the distinction between a defined benefit plan and a defined contribution plan. Defined benefit plans, such as pensions, guarantee a given amount of monthly income in retirement and place the investment risk on the plan provider.
Are traffic misdemeanors different from criminal misdemeanors?
Exactly how charges are defined varies with the state where the charge is brought. In some states, there is no distinction between criminal and traffic misdemeanors, and in others there is.
What is the data schema in a database?
Logical Structure of database is know as database schema. All database entities are defined and relation between then is represented in structured way. It includes all constraints to be apply on each identity.
What are kinds of planets?
The question is not well-defined enough to answer. One common division is between "terrestrial" (rocky) planets and "jovian" (gas giant) planets. Some people make a distinction between "gas giants" (Jupiter and Neptune) and "ice giants" (Uranus and Neptune).
What are explicit constraints and implicit constraints?
Explicit constraints are clearly defined rules or limitations set within a system, such as specific requirements in a contract or predetermined boundaries in a mathematical model. Implicit constraints, on the other hand, are not directly stated but are understood or inferred from the context or framework, like societal norms or assumptions in a problem. Both types of constraints influence decision-making and outcomes, but explicit constraints are more visible and easily identified, while implicit ones require deeper analysis to uncover.
Which of the following is a measure of future uncertainties in achieving program goals and objectives within defined cost schedule and performance constraints?
Risk
How is the term aphorisms properly defined?
Properly defined, the word aphorisms refers to original thoughts of distinction, either spoken or written. An aphorism is typically expressed in a concise, literal and memorable way.
Why is it possible to draw a distinction between natural substances and chemical substances?
The distinction between natural substances and chemical substances lies primarily in their origins and compositions. Natural substances are typically derived from nature and consist of complex mixtures of various compounds, such as minerals, plants, and animals. In contrast, chemical substances are often synthesized or purified through chemical processes in laboratories, resulting in specific compounds with defined chemical structures. This distinction highlights the differences in their sources, complexity, and the methods used to obtain or create them.
How can we confirm that a sketch is fully defined in solidwork?
In SolidWorks, a sketch is considered fully defined when it has no under-defined entities, indicated by a lack of blue lines or points. You can confirm this by checking the status bar at the bottom of the window, which will show "Fully Defined" when all dimensions and constraints are applied correctly. Additionally, all sketch entities will appear in black, signaling that their positions are fixed relative to each other. If any entities are still blue, they require further constraints or dimensions to achieve full definition.
What is the difference between a formally defined crime and a materially defined crime?
Formally defined crimes: Definitional elements proscribe a certain type of conduct irrespective of the result, i.e. rape, perjury, possession of drugs, driving negligently Materially defined crimes: (result crimes/consequence crimes) Definitional elements do not proscribe a specific conduct, but any conduct which causes a specific condition, i.e. murder, arson, culpable homicide. The act results in a certain condition, such as death of a person. Thus X's act causes the condition of Y, being death etc…
Nirvana is defined as .?
Nirvana is defined as a state of no suffering and perfect happiness.
