MySQL implements the member management function of the ordering system

MySQL is a commonly used relational database management system. For restaurant ordering systems, it is necessary to implement member management functions. This article will share how MySQL implements the member management function of the ordering system and provide specific code examples.

1. Create a membership table

First, we need to create a membership table to store membership information. You can define fields such as member ID, name, gender, mobile phone number, points, etc.

Code example:

CREATE TABLE member (

member_id int(11) NOT NULL AUTO_INCREMENT COMMENT 'Member ID' ,

name varchar(50) NOT NULL COMMENT 'name',

gender varchar(10) NOT NULL COMMENT 'gender',

phone varchar(20) NOT NULL COMMENT 'Mobile phone number',

points int(11) NOT NULL DEFAULT '0' COMMENT 'Points ',

PRIMARY KEY (member_id)

) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Member Table';

2. Add members Information

Next, we need to write the SQL statement to add member information. When a user registers as a member in the ordering system, this SQL statement can be called to add him or her to the membership table.

Code example:

INSERT INTO member (name, gender, phone, points) VALUES ('Zhang San', 'Male', '13888888888', 0);

3. Query member information

Querying member information is in the ordering system One of the commonly used functions. Users can query their membership information by entering their mobile phone number or member ID.

Code example:

SELECT * FROM member WHERE phone = '13888888888';

SELECT * FROM member WHERE member_id = 1;

4. Update member information

Sometimes, member information needs to be updated. For example, members change their mobile phone numbers or their points change. At this time, you can update through the following SQL statement.

Code example:

UPDATE member SET phone = '13999999999' WHERE member_id = 1;

UPDATE member SET points = points 100 WHERE member_id = 1;

5. Delete member information

Under certain circumstances, members may need to be deleted. For example, the user account has been canceled or the usage regulations have been violated. At this time, you can use the following SQL statement to perform the deletion operation.

Code example:

DELETE FROM member WHERE member_id = 1;

6. Summary

The above is a detailed introduction and specific code examples of the member management function of the ordering system implemented by MySQL. Through the above implementation, users can query their member information, update member information, delete member information and other operations by entering their mobile phone number or member ID, thereby providing a more comprehensive and personalized service for the ordering system.

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