Doctrine_manual-1-2-en

Chapter 9: DQL (Doctrine Query Language) 134
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The above call to getSql() would output the following SQL query:
SELECT
u.id AS u__id
FROM user u
WHERE u.type = ?
AND u.is_active = ?
OR u.is_super_admin = ?
Conditional expressions
Literals
Strings
A string literal that includes a single quote is represented by two single quotes; for example:
´´literal´s´´.
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// test.php
// ...
$q = Doctrine_Query::create()
->select('u.id, u.username')
->from('User u')
->where('u.username = ?', 'Vincent');
echo $q->getSqlQuery();
The above call to getSql() would output the following SQL query:
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SELECT
u.id AS u__id,
u.username AS u__username
FROM user u
WHERE u.username = ?
Integers
Because we passed the value of the username as a parameter to the where() method it is
not included in the generated SQL. PDO handles the replacement when you execute the
query. To check the parameters that exist on a Doctrine_Query instance you can use the
getParams() method.
Integer literals support the use of PHP integer literal syntax.
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// test.php
// ...
$q = Doctrine_Query::create()
->select('a.id')
->from('User u')
->where('u.id = 4');
echo $q->getSqlQuery();
The above call to getSql() would output the following SQL query:
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