constraint definition
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constraint The definition of a constraint is something that imposes a limit or restriction or that prevents something from occurring. An example of a constraint is the fact that there are only so many hours in a day to accomplish things. a constraining or being constrained; specif., confinement or restriction.
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- SQL constraints are used to specify rules for the data in a table. If there is any violation between the constraint and the data action, the action is aborted by the constraint.
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limiting factorin American Definition of 'limiting factor'. limiting factor in American. an environmental factor that limits the growth or activities of an organism or that restricts the size of a population or its geographical range.
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- Hard and soft constraints Hard constraints are those which we definitely want to be true. These might relate to the sucessful assembly of a mechanim. Soft constraint are those we would like to be true - but not at the expense of the others. These might say that a mechanism must follow a given path. There is not point in trying to match every point exactly if this can only be done by breaking the assembly of the links.
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- Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Bound. 2  Bound. 3  Bound(noun) the external or limiting line, either real or imaginary, of any object or space; that which limits or restrains, or within which something is limited or restrained; limit; confine; extent; boundary.
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Work (physics) Work (physics) - Constraint forces. 1  Constraint forces determine the movement of components in a system, constraining the object within a boundary (in the case of a slope plus gravity, the object is stuck to the slope, when attached to a taut string it cannot move in an outwards direction to make the string any 'tauter').
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- In contrast people generally have a moral/ethical obligation to keep their promises. Because rights, obligations and moral rules all concern taking action, they are related notions. Thus, moral constraint on action can be expressed in the language of rights or obligations, as well as that of moral rules.
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What does the word constraint mean in SQL ? Please help? CHECK The CHECK constraint ensures that all values in a column satisfy certain conditions. For example, in the following statement, CREATE TABLE Customer (SID integer CHECK (SID > 0), Last_Name varchar (30), First_Name varchar(30)); Column SID must only include integers greater than 0.
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- Relational database. (Redirected from Database constraints) A relational database is a digital database whose organization is based on the relational model of data, as proposed by E. F. Codd in 1970. The various software systems used to maintain relational databases are known as a relational database management system (RDBMS).
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Linear Programming The objective function is subject to particular constraints which are expressed by linear inequalities: Each inequality constraint system determines a half-plane. The intersection of all half-planes is formed by the constraints which determine a site. This site is called the area of feasible solutions or the validity region.
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- The constraint or budget line, in the diagram below, represents the possible levels of consumption in the two periods given the individual's level of present income, future expected income and the prevailing interest rate 'r'.
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constraint- definition and synonyms Blog. A must for anyone with an interest in the changing face of language. The Macmillan Dictionary blog explores English as it is spoken around the world today. Definition and synonyms of constraint from the online English dictionary from Macmillan Publishers Limited.his is the British English definition of constraint. View American English definition of constraint. Change your default dictionary to American English. View the pronunciation for constraint.
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- 1 These are all things that limit what you can do. 2  A restriction is rule or law that is made by somebody in authority. 3  A constraint is something that exists rather than something that is made, although it may exist as a result of somebody’s decision.
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Definitions &Translations Eric Lee: The fact is, it's hard to know what the constraint is, at least without extremely distressed pricing. Alexander Hamilton: Why has government been instituted at all Because the passions of men will not conform to the dictates of reason and justice, without constraint.
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Degrees of freedom (mechanics) It is convenient to define the number of constraints c that a joint imposes in terms of the joint's freedom f, where c = 6 − f. In the case of a hinge or slider, which are one degree of freedom joints, have f = 1 and therefore c = 6 − 1 = 5.
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What is the difference between constrain and restrain? Constraint is something that prevents you from accomplishing something or sets an obstacle in your way. It can be a time constraint, a legal constraint, a monetary constraint - but it is not directed at you specifically. A constraint can be overcome much more easily than a restraint. Restraint (think of handcuffs) is when someone stops you from doing something. The act of restraining is directed at you or your objective specifically. Example:
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All PLTW IED Vocabulary terms Geometric constraints are constant, non-numerical relationships between the parts of a geometric figure. Numeric constraints are number values, or algebraic equations that are used to control the size or location of a geometric figure. 2.
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- Traditionally, these constraints have been listed as scope (features and quality), time, and cost. These are also referred to as the Project Management Triangle, where each side represents a constraint. One side of the triangle cannot be changed without affecting the others. A further refinement of the constraints separates product quality or performance from scope, and turns quality into a fourth constraint.
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Relational database Constraints make it possible to further restrict the domain of an attribute. For instance, a constraint can restrict a given integer attribute to values between 1 and 10. Constraints provide one method of implementing business rules in the database and support subsequent data use within the application layer. SQL implements constraint functionality in the form of check constraints. Constraints restrict the data that can be stored in relations. These are usually defined using expressions that result in a boolean value, indicating whether or not the data satisfies the constraint.
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Meaning of Janelle The Meaning of the name Janelle The meaning of the name Janelle is as follows: God is Gracious. The Origin of the name Janelle The origin of the name Janelle is believed to be: Old French. The Hidden Meaning of the name Janelle using Numerology Numerology is an ancient science which was developed by Pythagoras.
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Definition of 'constraint' 1. countable noun. A constraint is something that limits or controls what you can do. Their decision to abandon the trip was made because of financial constraints. Water shortages in the area will be the main constraint on development. Synonyms: restriction, limitation, curb, rein More Synonyms of constraint.
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- Database constraints are user-defined structures that let you restrict the behaviors of columns. There are five principal types of constraints covered in this web page. You can create these constraints when you define a table with a SQL CREATE statement.
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constrain Constrain definition, to force, compel, or oblige: He was constrained to admit the offense. See more.
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Certifiably SQL: Data Constraints and Integrity The primary-key constraint designates a column, or a combination of columns, as the primary key for the table. This action enforces entity integrity, which requires each row to have a unique identifier, so that data modifications or queries always refer to a specific row without ambiguity.
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restraint see also constraint In the United States, military vocabulary is standardized by the Department of Defence. These terms are used by the United States Army, Navy, Air Force, and Marine Corps. Term Classification: planning
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Unique key Depending on its design, a database table may have many candidate keys but at most one candidate key may be distinguished as the primary key. A key constraint applies to the set of tuples in a table at any given point in time.