In MySQL, use the CREATE TABLE table_name (column_name data_type [column_constraint], ...) command to create a database table, which contains the table name, column name, data type, and optional column constraints.
MySQL command to create a database table
In MySQL, the command to create a database table is:
CREATE TABLE table_name ( column_name1 data_type [column_constraint], column_name2 data_type [column_constraint], ... );
Parameter description
- table_name: The name of the table to be created.
- column_nameN: The column name in the table.
- data_type: The data type of the column. Can be CHAR, VARCHAR, INT, FLOAT, DATETIME, etc.
- column_constraint: Optional parameter, used to set constraints on the column, such as NOT NULL, PRIMARY KEY, etc.
Example
Create a table named users
containing id
, name
and email
Three columns:
CREATE TABLE users ( id INT NOT NULL AUTO_INCREMENT, name VARCHAR(255) NOT NULL, email VARCHAR(255) UNIQUE );
Description: The
-
id
column is an integer, non-empty and automatically incremented. -
name
column is a variable length string, up to 255 characters, non-empty. The -
email
column is a variable-length string, up to 255 characters, that is unique.
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