Simple online bookstore database designThe database design of the online bookstore should include the following components:
1. Item Information Table (Item) -Store the basic information of the item such as title, author, price, description, classification, etc.
2. Order Information Table ( Order) -Store the order information of the customer, including the order number, customer name, order status, order items, etc.
3. Stock-Storage of stock information, including item number, stock quantity, purchase date, supplier, etc.
4. Order Management-used to record all orders created, modified, deleted, and the status of the order (completed, in progress, not processed, etc.).
5. Customer Information Form-used to record the basic information of the customer, such as name, email address, telephone number, etc.
6. The payment information table-used to record all payment methods such as credit card, AliPay, Weixin Pay, etc.
7. The supplier information sheet-used to record the basic information of the supplier, such as company name, address, contact information, etc.
The following is a simple online bookstore database design example. The product information table, order information table, and inventory information table already include some basic data fields:
```
--Item Information Form (Product)
CREATE TABLE Product (
Product_ID INT PRIMARY KEY
Product_Name VARCHAR(50) NOT NULL
Product_Price DECIMAL(10 2) NOT NULL
Product_Description TEXT NOT NULL
Product_category VARCHAR(20) NOT NULL
FOREIGN KEY (Product_ID) REFERENCES Product(ID)
);
--Order Information Form (Order)
CREATE TABLE Order (
Order_ID INT PRIMARY KEY
Customer_Name VARCHAR(50) NOT NULL
Order_Status VARCHAR(20) NOT NULL
Order_Product VARCHAR(50) NOT NULL
Order_Time TIMESTAMP NOT NULL
FOREIGN KEY (Order_ID) REFERENCES Order(ID)
);
--Storage Information Form (Stock)
CREATE TABLE Stock (
Stock_ID INT PRIMARY KEY
_
Arrival_Date Date NOT Empty
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FOREIGN KEY (Stock_ID) REFERENCES Stock(ID)
);
--Order Management
CREATE TABLE Order Management (
Order_ID INT NOT NULL
Order_'s status VarCHAR(20) NOT nil
Order_'s method VARCHAR(20) NOT nil
FOREIGN KEY (Order_ID) REFERENCES Order(ID)
);
--Customer Information Form
CREATE TABLE Customer (
Customer_ID INT NOT NULL
Customer_Name VARCHAR(50) NOT NULL
Customer_Email VARCHAR(100) NOT NULL
Customer_Phone VARCHAR(20) NOT NULL
FOREIGN KEY (Customer_ID) REFERENCES Customer(ID)
);
--payment information form (Payment)
CREATE TABLE Payment (
Payment_ID INT NOT NULL
Payment_Name VARCHAR(50) NOT NULL
Payment_Type VARCHAR(20) NOT NULL
Payment_Time TIMESTAMP NOT NULL
FOREIGN KEY (Payment_ID) REFERENCES Payment(ID)
);
```
In the above design, each table has a unique ID as the primary key to ensure the uniqueness and integrity of the data. At the same time, in order to support multi-currency transactions, the payment information table also included a payment type field to distinguish different payment methods.
Half Heart Online Name DesignThe following are some ideas for designing Half Heart's online name:
- He could use special symbols to enrich the expression of "half a heart." For example, in the nickname symbol generator of the Special Symbol Encyclopedia (which can be used for WeChat nickname symbols and King of Glory nickname symbols, etc.), enter "half a heart" and then choose a suitable symbol from the many symbol templates to add to the online name, such as "half a heart" or "half".
- If you want to be more creative, you can combine your own name or some meaningful words. For example, if your name was Xiao, your username could be Xiao, Half Heart.
- It could also be expanded in terms of emotions or meanings, such as "the lost half heart","waiting for the half heart", and so on.
The novel "The Name Engraved in the Stars of Destiny" is equally exciting. Everyone is welcome to click and read it!
Kujiale Online Design Web VersionKujiale Online Design Web Version can be logged in via Google browser at the login address: <anno data-annotation-id ="23333348 - 4448 - 4448 - 4418 - 9998 - 9999999999999"></anno></anno>. It had many advantages, such as making it easy for designers to get started, producing high-definition renderings in 10 seconds, and producing decoration design plans in 5 minutes; Covering more than 100 cities across the country, it had 1 million standard floor plans; It supported the import of CAD-generated floor plans, which could be switched between 2D/3D mode at will; There were a large number of furniture models, and the size could be customized; It was committed to the research and development of cloud design, VR, AR, cloud rendering, and other technologies, and could realize the new model of panoramic VR decoration design. What you see is what you get. There was also a one-click smart automatic layout function, which could easily obtain exquisite decoration plans. The material library was rich, with 150 million material libraries. It could be dragged and dragged to complete the design with one click. It could also create a 720°VR panoramic view with realistic effects. It had a zero threshold to get started, 10 seconds to complete the design, 10 minutes to complete the master design plan, 30 + plans a day, and one click to generate a proposal powerpoint. In terms of computer hardware configuration, 8G of memory +4M of or more than a wide band can be used. If the design material is rich, 16G of memory +6G of video memory +8M of or more than a wide band is recommended. When creating a house type, he would log in to his account and click on "Start Design" to enter the design tool interface. There were four ways to create a new house type: "Free Drawing, Search House Type Library, import a CD file, and import a copy drawing."
"A Short History of the Future: Legends of the Intelligent Era" was equally exciting. Everyone was welcome to click and read it!
How to Design an Online Fantasy StoryI recommend a few novels: " The Immortal Road of Spiritual Talismans ". Write a novel on the ground. It's a kind of immortal cultivation. A good-for-nothing boy embarks on the path of immortal cultivation with talismans. " When I Find My Main Character, I'll Kill All of You " was a hard-working fantasy novel written by Steamed Bun. The male protagonist Baiyi had transmigrated into the game world and was reduced from a Supreme True God to a mere statue. In order to regain his divine power, he had to rely on Little Lori's only follower, Nydo. " Supreme Sword Immortal " was created by Chu Liuxian. It was a game of online games. The settings of online games were refreshing. The male protagonist was very attentive when playing the game. I logged into the Sacred Ground to cover the sky. It was a four-story novel. Tidas brought the Heaven Covering Gaming Platform to the Sacred Ground world. There were many characters, and the book was not bad. " The Great Fantasy of Online Games ", easy to create, online games, about fighting and perseverance in the online world. The author's new book has been uploaded, asking for support.
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Online signature design free edition, there is an online master to help design, thank you name: Wang RuiHello, Wang Rui! I'm happy to design an autograph for you.
Here are some links to some free online signature design tools that you can use to design your own signature:
1 Master of signature design-<strong></strong>
2 Easy Sign-<strong></strong>
3 Super signatures-<strong></strong>
You can choose a design tool that suits you according to your preferences and style, then upload your own pictures and text to wait for the designer to complete the signature design for you.
I hope these links can help you create a beautiful signature!
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