02:00:00
UKE-007 库存管理系统
## 系统
### 总需求
期末库存管理流程
### 库存管理中的数据结构
* 用户信息
* 库存信息
### 关系数据库
1. 简单的表
2. 只有1个属性
### 安装
-Server config
- cd home direct
-system
users.sql
1. 创建表
postgresql
## 建立数据库
```sql
CREATE TABLE users (username varchar);
```
### 登录数据库
```sql
postgresql select * from users;
```
```sql
create table table1 (username varchar);
```
### 删除数据库
```sql
DROP TABLE ;
```
#1
### 怎么检索
```sql
select * from users;
```
## 基本表的操作
## 日志操作
库下创建用户
## 创建用户
set from this port
### 设置密码的
c
```sql
create user username password '1';
```
```sql
postgresql select * from users;
```
```sql
create table table2 (username varchar);
```
```sql
drop table table2;
```
=> 用户名注册
```sql
select * from users where username='username';
```
### 添加用户
### 系统添加用户
---
```sql
create table systemdb(scname, sci,sc)
```
```sql
insert into systemdb('name','ist', value);
```
```sql
select * from users…
```
### 创建用户
```sql
create table users(var?)
```
1. select * from users
2. insert into users val
select * from users
### 对外传播
1. set up user
2. insert into flyout database
1. select * from users
### 唯一用户
```sql
select * from users where username='username';
```
```sql
insert into users(username) values("iam name");
```
```sql
add user('name','sql', 'value');
```
```sql
insert into users name,variance;
```
```sql
insert into users values('name','value','any');
```
```sql
create table multirows(username varchar,value varchar);
```
```sql
drop table table2;
```
### on time
```sql
SELECT name FROM users WHERE id = ?;
```
```sql
delete scan
```
```sql
select * from users where
```
```sql
insert into users values('name','value,'times')
```
```sql object postgresql
select * from users where username="username"
```
## 日志日志
users(key, logic) create table masterbl(users public, username varchar, password varchar);
```sql
create table c char(users, user, car);
```
Complex ## 永久记录
```sql
select * from users where username='username';
```
```sql
insert into users value('ns.name','open','value')
```
### 输入数
[ international
```sql
SELECT name FROM users WHERE id = ?;
```
```sql
select * from users where username='username';
```
```sql
select * from users where username = 'username';
```
```sql
select * from users where username = 'username'
#1
select * from users where username = 'username'
```sql
select * from users where username = 'username'
select * from users where username = 'username'
```sql
select * from users where username = 'username'
```
** 创建表格**
```sql
select * from users where username = 'username'
```
```sql
select * from users where username = 'username'
```
```sql
select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
```
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select * from users where username = 'username'
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select * from users where username = 'username'
```
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select * of users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
```
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select * of users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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select * from users where username = 'username'
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## 开发历史 logging method from users
``` sql
select * from users where username = 'username
```
``` sql
select * from users where username = 'username
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3 Apr 2003