เทคนิคการสืบค้นขั้นสูงด้วย Boolean Operators

BOOLEAN¶ BOOLEAN can have TRUE or FALSE values BOOLEAN can also have an “unknown” value, which is represented by NULL Boolean columns can be used in

True and false booleans are represented by the values #t and #f, respectively, though operations that depend on a boolean value typically treat anything

boolean In C programming, the Boolean data type is denoted by the keyword 'bool' A variable of the type 'bool' can hold one of two values: 'true' or 'false' These are

boolean In computing, the term Boolean means a result that can only have one of two possible values: true or false Boolean logic takes two statements or expressions