1.4 KiB
1.4 KiB
title |
---|
SQL Create Table Statement |
SQL Create Table Statement
A table is a group of data stored in a database.
To create a table in a database you use the CREATE TABLE
statement. You give a name to the table and a list of columns with its datatypes.
SYNTAX
CREATE TABLE table_name(Attribute1 Datatype,
Attribute2 Datatype,
........);
here:
- Attribute1, Attribute2... -> Column Name
- Datatype... -> type of value you want to column have. For eg. int(size), char(size), Varchar(size),etc.
Here’s an example creating a table named Person:
CREATE TABLE Person(
Id int not null,
Name varchar not null,
DateOfBirth date not null,
Gender bit not null,
PRIMARY KEY( Id )
);
In the example above, each Person has a Name, a Date of Birth and a Gender. The Id column is the key that identifies one person in the table. You use the keyword PRIMARY KEY
to configure one or more columns as a primary key.
A column can be not null
or null
indicating whether it is mandatory or not.