2007-04-14 01:49:11 +04:00
|
|
|
|
Syntax:
|
|
|
|
|
|
|
|
|
|
|
|
string_expression [NOT] LIKE pattern_value [ESCAPE escape_character]
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
The string_expression must have a string value. The pattern_value is a string literal or a string-valued
|
|
|
|
|
|
input parameter in which an underscore (_) stands for any single character, a percent (%) character
|
|
|
|
|
|
stands for any sequence of characters (including the empty sequence), and all other characters stand for
|
|
|
|
|
|
themselves. The optional escape_character is a single-character string literal or a character-valued
|
|
|
|
|
|
input parameter (i.e., char or Character) and is used to escape the special meaning of the underscore
|
|
|
|
|
|
and percent characters in pattern_value.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Examples:
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
* address.phone LIKE <EFBFBD>12%3<EFBFBD> is true for '123' '12993' and false for '1234'
|
|
|
|
|
|
* asentence.word LIKE <EFBFBD>l_se<EFBFBD> is true for <EFBFBD>lose<EFBFBD> and false for 'loose'
|
|
|
|
|
|
* aword.underscored LIKE <EFBFBD>\_%<EFBFBD> ESCAPE '\' is true for '_foo' and false for 'bar'
|
|
|
|
|
|
* address.phone NOT LIKE <EFBFBD>12%3<EFBFBD> is false for '123' and '12993' and true for '1234'
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
If the value of the string_expression or pattern_value is NULL or unknown, the value of the LIKE
|
|
|
|
|
|
expression is unknown. If the escape_characteris specified and is NULL, the value of the LIKE expression
|
|
|
|
|
|
is unknown.
|
|
|
|
|
|
|
|
|
|
|
|
<code type="php">
|
|
|
|
|
|
|
|
|
|
|
|
// finding all users whose email ends with '@gmail.com'
|
|
|
|
|
|
$users = $conn->query("FROM User u, u.Email e WHERE e.address LIKE '%@gmail.com'");
|
|
|
|
|
|
|
|
|
|
|
|
// finding all users whose name starts with letter 'A'
|
|
|
|
|
|
$users = $conn->query("FROM User u WHERE u.name LIKE 'A%'");
|
|
|
|
|
|
</code>
|
