To create a table in MySQL, use the CREATE TABLE statement. The syntax is: CREATE TABLE table_name (column_name data_type [constraints], ...). Lists elements such as table_name, column_name, data_type, and constraints, and provides examples of auto-incrementing primary keys and NOT NULL constraints.
How to create a table in MySQL
In MySQL, use the CREATE TABLE
statement to create the table.
Basic syntax:
<code>CREATE TABLE table_name ( column_name data_type [constraints], ... );</code>
Where:
- ##table_name
is the name of the table to be created.
- column_name
is the name of the column in the table.
- data_type
is the data type of the column (for example: INT, VARCHAR, DATE).
- constraints
are constraints on the column (for example: NOT NULL, UNIQUE, FOREIGN KEY).
Example:
Create a table namedstudents, which contains
id (auto-increment primary key) ,
name (VARCHAR),
age (INT), and
grade (VARCHAR) columns:
CREATE TABLE students ( id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(255) NOT NULL, age INT, grade VARCHAR(10) );
Note:
- AUTO_INCREMENT
Indicates that the
idcolumn is an auto-incrementing primary key and will be automatically incremented each time a new row is inserted.
- PRIMARY KEY
Specifies the
idcolumn as the primary key, which uniquely identifies each row in the table.
- NOT NULL
The constraint specifies that the
namecolumn is not allowed to be NULL.
SHOW CREATE TABLE table_name statement.
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