What are the steps to create a database table in mysql

To create a MySQL database table, you need to connect to the database server, create (if necessary) and switch to a database, then use the CREATE TABLE statement to specify the column names and data types, and optionally specify additional column properties, and finally Execute the create statement. The steps include: Connect to the database server Create the database (optional) Switch to the created database Use the CREATE TABLE statement to create the table Specify column properties (optional) Execute the CREATE statement

Steps to create a MySQL database table

1. Connect to the MySQL database server

• Use the MySQL client or command line tool (eg mysql) connects to the MySQL database server.
• Log in to the database using username and password.

2. Create a database (optional)

• If the database has not been created yet, use the following command to create it:

<code>CREATE DATABASE database_name;</code>

3. Switch to the created database

• Switch to the newly created database to create tables in it:

<code>USE database_name;</code>

4. Create a table

• Use the following syntax to create a table:

<code>CREATE TABLE table_name (
    column1_name data_type,
    column2_name data_type,
    ...
);</code>

• column_name is the column The name.
• data_type is the data type of the column.

5. Specify column attributes (optional)

• You can specify additional attributes for columns, for example:

  • PRIMARY KEY: Specify this column as the primary key, which uniquely identifies each row in the table.
  • NOT NULL: Specifies that NULL values ​​are not allowed for this column.
  • DEFAULT: Specify the default value of the column.

6. Execute the create statement

• Execute the create statement to create the table:

<code>执行创建语句;</code>

Example:

The following statement creates a table named students, which contains id, name and age columns:

<code>CREATE TABLE students (
    id INT NOT NULL AUTO_INCREMENT,
    name VARCHAR(255) NOT NULL,
    age INT DEFAULT 18
);</code>

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