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Question

Zend框架2聯盟選擇我有這樣的SQL代碼：

(SELECT `column1` FROM `table_1` WHERE `column2` > 2) 
UNION 
(SELECT `column1` FROM `table_2` WHERE `column2` < 10) 
ORDER BY `column1` ASC; 

如何做到這一點與Zend框架2？

Answer 1

Zend Framework 2 Zend \ Db \ Sql不提供聯合方法，但您必須自己寫或使用JOIN。

$sql = new Sql($this->adapter); 
$select = $sql->select(); 
$select->from($this->table) 
     ->join('table_1', 'table_2.column1 = table_1.column1'); 

$where = new Where(); 
$where->greaterThan('column2', 2) ; //youll have to add a and here with a lessThan 
$select->where($where); 

$statement = $sql->prepareStatementForSqlObject($select); 
$result = $statement->execute(); 

老實說，我沒有嘗試這個例子，但至少應該給你一個想法。