Sql 如何在zend框架中使用子查询执行查询
嗨,我需要用Zend_Db_Select编写这个sql,但我不知道如何编写子查询。我将感谢任何帮助。谢谢Sql 如何在zend框架中使用子查询执行查询,sql,mysql,zend-framework,Sql,Mysql,Zend Framework,嗨,我需要用Zend_Db_Select编写这个sql,但我不知道如何编写子查询。我将感谢任何帮助。谢谢 SELECT * FROM advert WHERE categoryId IN ( SELECT id FROM `tree` WHERE `lft` BETWEEN (SELECT lft FROM tree WHERE id = '2') AND
SELECT * FROM advert WHERE categoryId
IN (
SELECT id
FROM `tree`
WHERE `lft` BETWEEN
(SELECT lft FROM tree WHERE id = '2') AND
(SELECT rgt FROM tree WHERE id = '2'))
也许可以帮助您在使用标准sql查询
和zf生成的查询
之间做出选择
我本人不建议在复杂且很少使用的查询中使用Zend_Db_Select。可能会帮助您在使用标准sql查询
和zf自制查询
之间做出选择
// create the main query
$select = new Zend_Db_Select();
//create the subquery
$subSelect = new Zend_Db_Select();
// using the subquery in main query
$select->where('table.field IN(?)', $subSelect->assemble());
我本人不建议对复杂且很少使用的查询使用Zend_Db_Select
// create the main query
$select = new Zend_Db_Select();
//create the subquery
$subSelect = new Zend_Db_Select();
// using the subquery in main query
$select->where('table.field IN(?)', $subSelect->assemble());