一个草根敲键盘的故事

SELECT id,name,pass,(select name from group_table where id=m.groupid)AS groupid FROM user_table as m;

# 查询所有重复的数据select *FROM tb_xici_articleWHERE post_title IN ( SELECT post_title FROM tb_xici_article GROUP BY post_title HAVING count( post_title ) > 1 ) # 查询所有重复并且id不是最小的那些重复数据SELECT *FROM tb_xici_articleWHERE post.

DROP TABLE IF EXISTS water1.`sys_collection`;CREATE TABLE water1.`sys_collection` LIKE water.`sys_equipment`;INSERT INTO water1.`sys_collection` SELECT * FROM water.`sys_equipment`;`sys_equipment...

SELECT m.Application_department,COUNT(m.Application_department) AS Daily_matters, (select COUNT(Department) from S_workExaminationForm...

SELECTe.id,e.on_line,e.name,(SELECT d.longitude FROM sys_equipment_data d WHERE d.equipment_id = e.id ORDER BY d.transmission_time DESC LIMIT 1) AS longitude,(SELECT d.latitude FROM sys_equipment...

SELECT Count(e.`name`) name, (SELECT Count(e.on_line) FROM equipment e WHERE e.on_line=2 ) off_line, (SELECT Count(e.on_line) FROM equipment e WHERE e.on_line=1 ) on_line...

#include<windows.h>#include "mysql.h"windoiws环境#include "mysql.h"上面加#include<windows.h>

SELECT * FROM reproduction_parameter WHERE TO_DAYS(NOW())-TO_DAYS(save_time)<= $days AND id='$id' GROUP BY DATE_FORMAT(save_time, '$time_type' ) DESC LIMIT $count_number"$days=1；//时间，...