Boolean - Predicate (Boolean Expression, Condition)

Data System Architecture

About

A Predicate is an boolean expression that evaluates to:

  • TRUE,
  • FALSE,
  • or UNKNOWN.

A predicate acts as a filter that filters a certain number of element from a collection (set)

Syntax

comparison expression + boolean operator + comparison expression + boolean operator + ...

where:




Discover More
Card Puncher Data Processing
Antlr - Lexer Rule (Token names|Lexical Rule)

in Antlr. They are rules that defines tokens. They are written generally in the grammar but may be written in a lexer grammar file Each lexer rule is either matched or not so every lexer rule expression...
Bash Liste Des Attaques Ovh
Bash - Conditional Expression

A predicate or boolean expression is known in Bash as a Conditional Expression. It is a command that returns an exit status of 0 or 1. The conditional expression is part of the compound expression. ...
Data System Architecture
Data Partitions (Clustering of data)

A partition cut out the storage in several part according to a predicate. You can have two types of partition : horizontal (sharding) (related to a cutting by row) vertical (related to a cutting...
Card Puncher Data Processing
Data Processing - Filtering Operations

filtering is a data processing operation that processes data through a filter where the data may be: deleted according to a predicate from a collection transformed (map operation) Therefore, you...
Text Mining
English - Adjective

They are: words (Adjectives are parts of the speech) or Subordinate Clauses used to modify: a noun or a pronoun. And there are three categories of adjectives: (1) descriptive adjectives,...
Imperative Vs Functional
Functional Programming - Partition By

A partition by operation partitions the data according to a predicate. See also:
Compiler
Grammar - Rule Construct / Basic Rule Expression

This page lists common rule expression in order to describe the structure of the parsed document. A rule expression is a pattern expression that produces a boolean and are therefore predicate. grammar...
Java Conceptuel Diagram
Java - Functional Interface

in Java. A functional interface is is a interface that contains only one abstract method. The interface is so simple that java defines several standard (built-in) functional interfaces Functional...
Compiler
Language - (Grammar|Production) Rule

Recursive rules (known as production): are essential for describing the syntax of programming languages, and are a part of every compiler. play an important role in describing the syntax of natural...
Card Puncher Data Processing
Language - Assertion

In computer programming, an assertion is a predicate (for example a true–false statement) placed in a program to indicate that the developer thinks that the predicate is always true or false at that...



Share this page:
Follow us:
Task Runner