i have a case here, i'd like to create a top 10 product based on 3 table, which is the most of views, emails_request, and apply_request, my table structure is like this
product_views
===================
id | product_id | date
--------------------------
1 | 1 | today
2 | 1 | today
3 | 2 | today
product_email_request
===================
id | product_id | date
--------------------------
1 | 1 | today
2 | 1 | today
3 | 2 | today
product_apply_request
===================
id | product_id | date
--------------------------
1 | 1 | today
2 | 2 | today
3 | 2 | today
and my goals is to achive something like this
product_id | view_count | email_count | apply_count
==========================================================
1 | 2 | 2 | 1
2 | 1 | 1 | 2
does it possible to do this on mysql ? i'm confused and i ever read that i should use union for this but still doesnt have the clue..
here is the sql script
/*
Navicat MariaDB Data Transfer
Source Server : LOKAL
Source Server Version : 100121
Source Host : localhost:3306
Source Database : test
Target Server Type : MariaDB
Target Server Version : 100121
File Encoding : 65001
Date: 2017-07-23 17:17:25
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for product_apply
-- ----------------------------
DROP TABLE IF EXISTS `product_apply`;
CREATE TABLE `product_apply` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`product_id` int(11) DEFAULT NULL,
`creation` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=latin1;
-- ----------------------------
-- Records of product_apply
-- ----------------------------
INSERT INTO `product_apply` VALUES ('1', '1', '2017-07-23 17:17:00');
INSERT INTO `product_apply` VALUES ('2', '2', '2017-07-23 17:17:08');
-- ----------------------------
-- Table structure for product_emails
-- ----------------------------
DROP TABLE IF EXISTS `product_emails`;
CREATE TABLE `product_emails` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`product_id` int(11) DEFAULT NULL,
`creation` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=latin1;
-- ----------------------------
-- Records of product_emails
-- ----------------------------
INSERT INTO `product_emails` VALUES ('1', '1', '2017-07-23 16:46:32');
INSERT INTO `product_emails` VALUES ('2', '1', '2017-07-23 16:46:47');
INSERT INTO `product_emails` VALUES ('3', '2', '2017-07-23 16:47:05');
INSERT INTO `product_emails` VALUES ('4', '2', '2017-07-23 16:47:47');
INSERT INTO `product_emails` VALUES ('5', '3', '2017-07-23 17:00:18');
INSERT INTO `product_emails` VALUES ('6', '1', '2017-07-23 17:00:29');
-- ----------------------------
-- Table structure for product_views
-- ----------------------------
DROP TABLE IF EXISTS `product_views`;
CREATE TABLE `product_views` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`product_id` int(11) NOT NULL,
`creation` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1;
-- ----------------------------
-- Records of product_views
-- ----------------------------
INSERT INTO `product_views` VALUES ('1', '1', '2017-07-23 16:47:25');
INSERT INTO `product_views` VALUES ('2', '1', '2017-07-23 16:47:32');
INSERT INTO `product_views` VALUES ('3', '2', '2017-07-23 16:47:38');
any helps will be awesome.. thankyou
via Chebli Mohamed
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