BlogJava-guanxf-随笔分类-Database

mongdb 使用linux shell修改数据

管先飞 — Tue, 22 Sep 2015 11:25:00 GMT

1、编写脚步：update.js
/**

* 时间对象的格式化;

Date.prototype.format = function(format) {

* eg:format="YYYY-MM-dd hh:mm:ss";

var o = {

"M+" :this.getMonth() + 1, // month

"d+" :this.getDate(), // day

"h+" :this.getHours(), // hour

"m+" :this.getMinutes(), // minute

"s+" :this.getSeconds(), // second

"q+" :Math.floor((this.getMonth() + 3) / 3), // quarter

"S" :this.getMilliseconds()

// millisecond

}

if (/(y+)/.test(format)) {

format = format.replace(RegExp.$1, (this.getFullYear() + "")

.substr(4 - RegExp.$1.length));

}

for ( var k in o) {

if (new RegExp("(" + k + ")").test(format)) {

format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k]

: ("00" + o[k]).substr(("" + o[k]).length));

}

return format;

}

var date =new Date();

var createdate=date.format("yyyy-MM-dd hh:mm:ss");

date.setMinutes(date.getMinutes()+5);

var validtime=date.format("yyyy-MM-dd hh:mm:ss");

db.UserOnlineInfo.update(

{

"uid" : "110000350"

{$set : {

"uid" : "110000350",

"createtime" : createdate,

"validtime" : validtime

}});

db.UserOnlineInfo.update(

{

"uid" : "110000351"

{$set : {

"uid" : "110000351",

"createtime" : createdate,

"validtime" : validtime

}});

2、编写shell脚步：
#/bin/bash

echo "update mongod begin"

cd /home/mongodb/mongodb-3.0.2/bin

./mongo 192.168.1.122:27108/YouLiao update.js;

echo "update mongod success"

3、执行脚本：

/home/mongodb/mongodb-3.0.2/bin/mongo 192.168.1.122:27108/YouLiao /root/www/job/mongo-test/update.js

备注：

mongodb查询、删除类似

管先飞 2015-09-22 19:25 发表评论

sql删除语句的写法

管先飞 — Sun, 01 Mar 2015 14:52:00 GMT

1、多表级联删除：

---DELETE---

DELETE from a_msg_push,a_announcement

using a_msg_push,a_announcement

where a_msg_push.announcement_id=a_announcement.id and a_announcement.Create_time<'2014-11-19 23:59:59';

2、子查询删除：

-----------delete--------

DELETE From t_repeat where t_repeat.id in(

SELECT tb.id from (

SELECT * from t_repeat t

where

1=1

and

(t.cid,t.uid ) in (select t1.cid,t1.uid from t_repeat t1 group by t1.cid,t1.uid having count(*) > 1)

and

t.id not in (select min(t2.id) from t_repeat t2 group by t2.cid,t2.uid having count(*)>1)

) as tb )

3、子表删除：

-----------delete--------

DELETE From t_repeat where t_repeat.id not in

(

SELECT tb.id from(

select a.id from t_repeat a where a.id =(

select max(b.id) from t_repeat b where a.cid=b.cid and a.uid=b.uid

)

)as tb

)

管先飞 2015-03-01 22:52 发表评论

小白学sql-分组统计sum和count的用法

管先飞 — Thu, 18 Sep 2014 09:05:00 GMT

如下两条常用sql，统计分类数据，你能说出区别吗？
一、常用sql一：
select

r.cid,

r.depart_id,

r.employ_id,

r.create_by,

count(DISTINCT r.form_type) as dailyReportNum

FROM

report r

where

1=1

GROUP BY

r.employ_id

二、常用sql二：

select

r.cid,

r.depart_id,

r.employ_id,

r.create_by,

sum(case WHEN df.form_type=1 then 1 else 0 end ) as dailyReportNum

FROM

report r

where

1=1

GROUP BY

r.employ_id

管先飞 2014-09-18 17:05 发表评论

mysql实现按照编号升序排序

管先飞 — Tue, 10 Sep 2013 07:11:00 GMT

mysql代码：
select sp.singer_name as singerName,sp.fans_value as fansValue
From singer_publish sp
where 1=1
order by (case when (sp.fans_value is null or sp.fans_value='' or sp.fans_value<1) then 1 else 0 end ),sp.fans_value;

管先飞 2013-09-10 15:11 发表评论

Mysql数据库数据的导入与导出

管先飞 — Sun, 19 May 2013 05:57:00 GMT

1、<数据库用户>

本地用户

GRANT ALL PRIVILEGES ON *.* TO 'user_name'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION;

注：第一个*为数据库名

所有用户（有的版本不包含本地用户，还有加上上面一名）

GRANT ALL PRIVILEGES ON *.* TO 'user_name'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;

2、<数据库导出>

导出数据结构

C:/Program Files/MySQL/MySQL Server 5.5/bin/mysqldump -uroot -proot -d tienal_admin > c:/tienal_admin.sql

导出数据结构与数据

C:/Program Files/MySQL/MySQL Server 5.5/bin/mysqldump -uroot -proot tienal_admin > c:/tienal_admin.sql

3、<数据库导入>

从MySQL命令行

use tienal_admin;

source E:/PeaceWork/Project/天籁音乐/原始资料/tienal_admin/misc/sql.sql;

直接运行

　　　C:/Program Files/MySQL/MySQL Server 5.5/bin/mysql -uroot -proot tienal_admin < c:/tienal_admin.sql

管先飞 2013-05-19 13:57 发表评论

Sql server 级联查询 Left Join的应用

管先飞 — Thu, 28 Mar 2013 15:41:00 GMT

LEFT JOIN 关键字语法：

SELECT column_name(s) 
FROM table_name1
LEFT JOIN
table_name2  
ON 
table_name1.column_name=table_name2.column_name

高级应用：

SELECT  	
had.deptTypeId as deptTypeId
,hdt.typeName as deptTypeName
,had.id as deptID
,had.deptName as deptName
,isnull(sg.siteGoalPoint,0) as siteGoalPoint
,isnull(sg.supGoalPoint,0) as supGoalPoint
from
--单位
(select a.deptTypeId,a.id,a.deptName
  from HD_ACT_DEPT a															 	
  where 1 = 1 																 	
  and deptTypeId = 'null'										 	
) as had																	 	
LEFT JOIN																	 	
--单位类型																	 	
HD_DEPT_TYPE hdt															 	
ON had.deptTypeId = hdt.id												 																				 	
LEFT JOIN																	 	
--任务完成情况统计表															 	
(select a.siteGoalPoint,a.supGoalPoint,a.deptTypeId,a.deptID 	
from cms_sup_submit_goal a													 	
where a.year = '2013'											 	
) as sg																		 	
on had.deptTypeId = sg.deptTypeId and had.id = sg.deptID					    
ORDER BY had.deptTypeId, had.id

多表查询：

select s.id,s.name,s.sname from

singer s, tb_su su

where s.id=su.sid and su.userid='1'

管先飞 2013-03-28 23:41 发表评论