Difference between revisions of "SQL Logical operators"

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=SQL LOGICAL OPERATORS=
 
 
 
==Class==
 
SQL Applications
 
 
 
 
==Purpose==
 
==Purpose==
 
Logical Operators
 
Logical Operators

Revision as of 15:20, 29 October 2009

Purpose

Logical Operators


Syntax

<condition1> AND <condition2> NOT <condition> <condition1> OR <condition2> <condition1> XOR <condition2>


See Also

INSERT, SQL OPERATORS, SELECT, UPDATE


Description

Operator Description
AND True if <condition1> and <condition2> conditions are both true, otherwise False
NOT True if the <condition> is false, otherwise False
OR True if <condition1> or <condition2> is true or if both conditions are true, otherwise False
XOR True if <condition1> or <condition2> is true but not both, otherwise False


Example

// AND
EXEC SQL
SELECT name, address, balance, cost*1.15
FROM accounts
WHERE paid_date < date() AND ord_value > 10000
ORDER BY name, paid_date;
 
// NOT
EXEC SQL
SELECT name, address, balance, cost*1.15
FROM accounts
WHERE paid_date < date() AND NOT ord_value BETWEEN 0 AND 10000
ORDER BY name, paid_date;
 
// OR
EXEC SQL
SELECT name, address, balance, cost*1.15
FROM accounts
WHERE paid_date < date() OR ord_value > 10000
ORDER BY name, paid_date;
 
// XOR
EXEC SQL
SELECT name, address, balance, cost*1.15
FROM accounts
WHERE paid_date < date() OR ord_value > 10000
ORDER BY name, paid_date;


Products

Recital Database Server, Recital Mirage Server, Recital Terminal Developer