Question

I have two tables which i want to query at the same time. The tables are uploads and audienceuploadassociation, so here is the thing, i have only 1 topic value called “ESL” in my table, but when i use the SQL below it give me 6 records, it repeats the same data 6 times.

SELECT uploads.*, audienceuploadassociation.*
FROM   uploads
  JOIN audienceuploadassociation
    ON uploads.upload_id = audienceuploadassociation.upload_id
 WHERE uploads.member_id = '1'
   AND uploads.member_school_id='1'
   AND subject = 'ESL'
   AND topic = 'Poetry'
LIMIT  20

Here is the table structure for uploads :

`uploads` (
  `upload_id` int(11) NOT NULL AUTO_INCREMENT,
  `member_id` varchar(255) NOT NULL,
  `date` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `upload_name` text NOT NULL,
  `upload_title` varchar(255) NOT NULL,
  `upload_type` varchar(100) NOT NULL,
  `subject` varchar(50) NOT NULL,
  `topic` longtext NOT NULL,
  `year` int(100) DEFAULT NULL,
  `keywords` varchar(255) NOT NULL,
  `description` longtext NOT NULL,
  `status` enum('Finished','Work in progress','Blank template') NOT NULL DEFAULT 'Finished',
  `test_name` varchar(255) DEFAULT NULL,
  `firstname` varchar(255) NOT NULL,
  `lastname` varchar(255) NOT NULL,
  `member_display_name` varchar(255) NOT NULL,
  `member_school_id` int(11) NOT NULL DEFAULT '1',
  PRIMARY KEY (`upload_id`)
) 

and for audienceuploadassociation :

`audienceuploadassociation` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `upload_id` bigint(20) NOT NULL,
  `audiencename` varchar(254) NOT NULL,
  PRIMARY KEY (`id`)
) 

Any help will be appreciated, thanks in advance.

Answer 1

try this, use GROUP BY:

SELECT uploads.*, audienceuploadassociation.*
FROM   uploads
  JOIN audienceuploadassociation
    ON uploads.upload_id = audienceuploadassociation.upload_id
 WHERE uploads.member_id = '1'
   AND uploads.member_school_id='1'
   AND subject = 'ESL'
   AND topic = 'Poetry'
GROUP BY uploads.upload_id
LIMIT  20