Difference between revisions of "SQL Logical operators"
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Revision as of 10:35, 30 January 2013
Contents
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 SELECT name, address, balance, cost*1.15; FROM accounts; WHERE paid_date < date() AND ord_value > 10000; ORDER BY name, paid_date // NOT 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 SELECT name, address, balance, cost*1.15; FROM accounts; WHERE paid_date < date() OR ord_value > 10000; ORDER BY name, paid_date // XOR SELECT name, address, balance, cost*1.15; FROM accounts; WHERE paid_date < date() OR ord_value > 10000; ORDER BY name, paid_date
