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There could be two such meanings with regards to databases. A boolean type field is one which can only have one of two values. (The method by which the two values are signified isn't important, as long as it's consistent - usual methods are T/F, Y/N and the like.) A boolean expression is one that evaluates to either a true or false value and is typically used in WHERE and HAVING clauses as well as CASE structures. (For example "WHERE termination_date IS NULL" in a query against an employee database would only select those rows where the expression is true, i.e., the employee does not have a termination date, indicating they are active employees.)
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What is a tuple in a database?
An arbitrary group of fields within a database record. Usually has some meaning in the context of the record. For example a 3-tuple in an address record might be the fields that contain the first, middle and last names of the person in the address field.
What is the ranges of database?
ranges of database
What is the definition of database clustering?
Database is defines as a collection related records/data. When the data in the database is grouped based on some classification it is called database clustering.
Why was the venn diagram invented?
So that you could visualize the various permutations in boolean algebra.
What is the most popular database model?
Relational Database Model
What type of database is PostgreSQL?
The types of database supported by PostgreSQL are Boolean, numerics, binary, composite, arrays, and date/time stamps. Another option is that users can create their own database types using this software.
What is a way for students to keep track of information during research?
These are the choices credible website,search log,boolean operator and online database
The meaning of Oracle is?
Oracle is relational DataBase
The meaning of a computer database?
Meaning of database is like some data that has been saved to a computer in some maybe documents
Which boolean operation is referred to as a boolean product?
AND operation is referred as a boolean product
If Eat Hamburger?
AND boolean
What are database field names and data types?
Database field names are the column headers that define the type of information stored in that column. Data types in a database specify the kind of values that can be stored in a particular field, such as text, numbers, dates, or Boolean values. Common data types include VARCHAR (variable-length character strings), INT (integer), DATE (date values), and BOOLEAN (true/false values).
The definition of a boolean operator?
what is boolean operator
What is a boolean variable?
A Boolean variable is a variable from Boolean algebra having one of only two values.
What year did George Boole develop boolean algebra?
what is the contribution George Boolean to the development of Boolean operations
What is boolean data type?
what is boolean data type
What is a Boolean indicator?
it is a thing that indicates that a boolean is close
