MongoDB实验——数据库基本操作头歌

第1关：创建数据库

命令行

mongo
use mydb
db.mydb.insert({_id:1,name:"李小红"})

第2关：创建集合

命令行输入：

mongo
use Testdb2
db. t_stu.insert([{_id:1,name:"小明",sex: "男",hobbies: ["乒乓球","羽毛球"]},
{_id:2,name:"小红",sex: "女",hobbies: ["画画","唱歌"]}])

第3关：文档操作一

命令行输入：

mongo
use Testdb3
document=([{_id:1,name:"张小华",phone: "12356986594",hobbies: ["打篮球","踢足球","唱歌"]}]);
db.stu1.insert(document)
db.stu2.insert(document)
db.stu3.insert(document)
db.stu2.update({phone: "12356986594"},{$set:{ phone: "18356971462"}})
db.stu3.save({_id:1,name:"张晓晓",phone: "12365498704",hobbies: ["跳舞","羽毛球","唱歌"]})

第4关：文档操作二

命令行

mongo

document=([{
name:'张小华',
sex:'男',
age:20,
phone:'12356986594',
hobbies:['打篮球','踢足球','唱歌']
},{
name:'李小红',
sex:'女',
age:18,
phone:'12355487536',
hobbies:['跳舞','唱歌']
}])
db.stu1.insert(document)

代码文件

#********* Begin *********#

echo "

document=([

{_id:1,name:'西西',sex:'女',age:23,national:'汉族'},

{_id:2,name:'小编',sex:'男',age:20,national:'苗族'},

{_id:3,name:'北北',age:19,

{_id:4,name:'南南',age:15,national:'傣族'}]);

db.stu1.insert(document);

db.stu2.insert(document);

db.stu1.find({'age':{\$gte:15},'sex':'女'});

db.stu1.find({'national':'苗族'});db.stu1.find({'age':{\$lt:20},'sex':'男'});

db.stu2.remove({});

#********* End *********#

第5关：综合实训——学生信息管理

（先复制代码文件，再来按顺序输命令行）

命令行（分步骤顺序运，不然会报错）

1. mongo --port 27017
2. use Testdb5
3. document=([{_id:1,name:"王晓丽",sex:"女",major:"计算机"}, {_id:2,name:"张明",age:21,sex:"男",
{_id:3,name:"秋雅",major:"播音主持"},
{_id:4,name:"张欣欣",age:18,
{_id:5,name:"袁华",
{_id:6,name:"马冬梅",major:"表演"},
{_id:7,name:"夏洛",age:22,
{_id:8,name:"李大春",major:"表演"}]);

4. db.student_t.insert(document);