在 3 个表上选择和取消链接文件

Question

Please help me to check my query. I have search a lot and I have'nt try to select 3 tables before.

I think I got it right but I dont know why there's nothing happen.

 public function delSection($delete_id) { $stmt = $this->conn->prepare("SELECT * FROM tbl_section JOIN tbl_login ON (tbl_login.sec_id = tbl_section.sec_id) JOIN tbl_content ON (tbl_content.sec_id = tbl_section.sec_id) WHERE tbl_section.sec_id=:del_id"); $stmt->execute(array(":del_id"=>$delete_id)); while($linkRow=$stmt->fetch(PDO::FETCH_ASSOC)) { unlink(__DIR__."/Admin/cover_images/".$linkRow['sec_cover']); unlink(__DIR__."/Admin/Files/".$linkRow['sec_id']."/".$linkRow['file_name']); rmdir(__DIR__."/Admin/Files/".$linkRow['sec_id']); } $stmt2 = $this->conn->prepare("DELETE tbl_section, tbl_login, tbl_content FROM tbl_section JOIN tbl_login ON (tbl_login.sec_id = tbl_section.sec_id) JOIN tbl_content ON (tbl_content.sec_id = tbl_section.sec_id) WHERE tbl_section.sec_id=:del_id"); $stmt2->bindparam(":del_id",$delete_id); $stmt2->execute(); return true; }

What I am trying to do is to select * from 3 tables and fetch their data with fk sec_id

here's the manual running of query

link:

Code:

Answer 1

Done With LEFT OUTER JOIN QUERY

 $stmt = $this->conn->prepare("SELECT * FROM tbl_section LEFT OUTER JOIN tbl_login ON (tbl_login.sec_id = tbl_section.sec_id) LEFT OUTER JOIN tbl_content ON (tbl_content.sec_id = tbl_section.sec_id) WHERE tbl_section.sec_id=:unlink_id");