create table in mysql
# Creates a Simple User table
# Uses an auto-incrementing primary key as userId
CREATE TABLE user (
userId INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
username VARCHAR(100),
password VARCHAR(100)
) ENGINE=InnoDB;create table in mysql
# Creates a Simple User table
# Uses an auto-incrementing primary key as userId
CREATE TABLE user (
userId INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
username VARCHAR(100),
password VARCHAR(100)
) ENGINE=InnoDB;create table sql
# Simple table describing a vehicle
CREATE TABLE vehicle(
# vehicleId: Unique ID for Primary Key.
# This is how we will reference a record
vehicleId INT NOT NULL,
make VARCHAR(64), # String 64 chars max
model VARCHAR(128),
derivative VARCHAR(255),
PRIMARY KEY(vehicleId)
);
# Add a record
INSERT INTO vehicle VALUES(1000,'Volkswagen','Golf','1.5 TSI EVO Match Edition 5dr');create table mysql
CREATE TABLE IF NOT EXISTS tasks (
task_id INT AUTO_INCREMENT PRIMARY KEY,
title VARCHAR(255) NOT NULL,
start_date DATE,
due_date DATE,
status TINYINT NOT NULL,
priority TINYINT NOT NULL,
description TEXT,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
) ENGINE=INNODB;mysql create table
Imaginons que l’ont souhaite créer une table utilisateur,
contenant "id","nom", "prenom", "email", "date_naiss", "pays" etc..
La requête pour créer cette table peut ressembler à ceci:
CREATE TABLE utilisateur
(
id INT PRIMARY KEY NOT NULL,
nom VARCHAR(100),
prenom VARCHAR(100),
email VARCHAR(255),
date_naissance DATE,
pays VARCHAR(255),
ville VARCHAR(255),
code_postal VARCHAR(5),
nombre_achat INT
)
Voici des explications sur les colonnes créées :
id : identifiant unique qui est utilisé comme clé primaire
et qui n’est pas nulle
nom :une colonne de type VARCHAR avec un maximum de 100 caractères
prenom : idem mais pour le prénom
email : adresse email enregistré sous 255 caractères au maximum
date_naissance : format AAAA-MM-JJ (exemple : 1973-11-17)
pays : nom du pays 255 caractères au maximum
ville : idem pour la ville
code_postal : 5 caractères du code postal
nombre_achat : nombre d’achat de cet utilisateur sur le siteMySQL CREATE TABLE
The CREATE TABLE statement allows you to create a new table in a database.
The following illustrates the basic syntax of the CREATE TABLE statement:
CREATE TABLE [IF NOT EXISTS] table_name(
column_1_definition,
column_2_definition,
...,
table_constraints
) ENGINE=storage_engine;
Let’s examine the syntax in greater detail.
First, you specify the name of the table that you want to create after the CREATE TABLE keywords. The table name must be unique within a database. The IF NOT EXISTS is optional. It allows you to check if the table that you create already exists in the database. If this is the case, MySQL will ignore the whole statement and will not create any new table.
Second, you specify a list of columns of the table in the column_list section, columns are separated by commas.
Third, you can optionally specify the storage engine for the table in the ENGINE clause. You can use any storage engine such as InnoDB and MyISAM. If you don’t explicitly declare a storage engine, MySQL will use InnoDB by default.mysql create table
CREATE TABLE nom_de_la_table
(
colonne1 type_donnees,
colonne2 type_donnees,
colonne3 type_donnees,
colonne4 type_donnees
)Copyright © 2021 Codeinu
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