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/*
Navicat MySQL Data Transfer
Source Server : pp2
Source Server Version : 50508
Source Host : localhost:3306
Source Database : test2
Target Server Type : MYSQL
Target Server Version : 50508
File Encoding : 65001
Date: 2013-12-04 11:09:50
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for `tabname`
-- ----------------------------
DROP TABLE IF EXISTS `tabname`;
CREATE TABLE `tabname` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`guid` varchar(255) NOT NULL,
`time` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of tabname
-- ----------------------------
INSERT INTO `tabname` VALUES ('1', '1', '2013-12-02 10:39:25');
INSERT INTO `tabname` VALUES ('2', '2', '2013-12-03 10:39:49');
INSERT INTO `tabname` VALUES ('3', '3', '2013-12-03 10:42:21');
INSERT INTO `tabname` VALUES ('4', '4', '2013-12-03 10:42:22');
INSERT INTO `tabname` VALUES ('5', '5', '2013-12-04 10:58:36');
INSERT INTO `tabname` VALUES ('6', '6', '2013-11-28 11:01:03');
-- ----------------------------
-- Table structure for `time_fu`
-- ----------------------------
DROP TABLE IF EXISTS `time_fu`;
CREATE TABLE `time_fu` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`time` timestamp NULL DEFAULT NULL ON UPDATE CURRENT_TIMESTAMP,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of time_fu
-- ----------------------------
INSERT INTO `time_fu` VALUES ('1', '2013-12-01 10:50:54');
INSERT INTO `time_fu` VALUES ('2', '2013-12-02 10:51:01');
INSERT INTO `time_fu` VALUES ('3', '2013-12-03 10:51:06');
--------------------------------------------
select count(t.guid) as guidcount,DATE_FORMAT(f.time,'%y-%m-%d') as time
from tabname as t
right join time_fu as f
on DATE_FORMAT(t.time,'%y-%m-%d')=DATE_FORMAT(f.time,'%y-%m-%d')
group by f.time;
+-----------+----------+
| guidcount | time |
+-----------+----------+
| 0 | 13-12-01 |
| 1 | 13-12-02 |
| 3 | 13-12-03 |
+-----------+----------+