使用AND/OR邏輯運算符的SQL查詢

2010-11-09 84 views 0 likes

fI似乎是一個相對簡單的AND/OR子句，它讓我頭疼。使用AND/OR邏輯運算符的SQL查詢

$query = "SELECT stv.name,stc.tmplvarid,stc.contentid,stv.type,stv.display,stv.display_params,stc.value"; 
$query .= " FROM ".$tb1." stc LEFT JOIN ".$tb2." stv ON stv.id=stc.tmplvarid "; 
$query .= " LEFT JOIN $tb_content tb_content ON stc.contentid=tb_content.id "; 
$query .= " WHERE stv.name='".$region."' AND stc.contentid IN (".implode($cIDs,",").") "; 
$query .= " OR stv.name='".$countries."' AND stc.contentid IN (".implode($cIDs,",").") "; 
$query .= " AND tb_content.pub_date >= '$pub_date' "; 
$query .= " AND tb_content.published = 1 "; 
$query .= " ORDER BY stc.contentid ASC;";

我需要從兩個$region和$countries檢索值。但是，它只是返回值$countries。如果我刪除OR的行，它將返回值$region，但它不會同時返回。我做錯了什麼？

來源

2010-11-09 Vecta

回答

嘗試把括號條款的OR的兩側。見下：

$query = "SELECT stv.name,stc.tmplvarid,stc.contentid,stv.type,stv.display,stv.display_params,stc.value"; 
$query .= " FROM ".$tb1." stc LEFT JOIN ".$tb2." stv ON stv.id=stc.tmplvarid "; 
$query .= " LEFT JOIN $tb_content tb_content ON stc.contentid=tb_content.id "; 
$query .= " WHERE (stv.name='".$region."' AND stc.contentid IN (".implode($cIDs,",").")) "; 
$query .= " OR (stv.name='".$countries."' AND stc.contentid IN (".implode($cIDs,",").")) "; 
$query .= " AND tb_content.pub_date >= '$pub_date' "; 
$query .= " AND tb_content.published = 1 "; 
$query .= " ORDER BY stc.contentid ASC;";

來源

2010-11-09 15:45:00 RedFilter

謝謝，但它仍然只是返回$國家。如果有幫助，以下是完整的功能：http://pastebin.com/E4CdnQNj – Vecta 2010-11-09 15:51:51