CREATE TABLE 是我們在資料庫中用來建立一個新資料表的語法。 CREATE TABLE 語法 (Syntax) CREATETABLEtable_name ( column_name1 data_type, column_name2 data_type, column_name3 data_type, ··· ); data_type 用來指定該欄位資料儲存的資料型別,你可以另外去細看各家資料庫的文件看有提供哪些型別喔!
CREATE TABLE table-name column-definition table-constraint-clause physical-storage-clause column-definition: column-name data type [WITH DEFAULT expression] [NULL|NOT NULL] [column-constraint-clause] [, column-name data type [WITH DEFAULT expression] [NULL|NOT NULL] [column- constraint-clause].....
Here, the SQL command checks if a table namedCompaniesexists, and if not, it creates a table with specified columns. Create Table Using Another Existing Table In SQL, we can create a new table by duplicating an existing table's structure. Let's look at an example. -- create a backup t...
Other SQL Tutorial PL/SQL Tutorial SQL CREATE TABLE StatementThe CREATE TABLE Statement is used to create tables to store data. Integrity Constraints like primary key, unique key, foreign key can be defined for the columns while creating the table. The integrity constraints can be defined at col...
CREATE DATABASE [TutorialDB] GO USE [TutorialDB] -- Create a new table called 'Customers' in schema 'dbo' -- Drop the table if it already exists IF OBJECT_ID('dbo.Customers', 'U') IS NOT NULL DROP TABLE dbo.Customers GO -- Create the table in the specified schema ...
Data stored in the database is logically stored in data tables, using SQL Create statement we can create data tables in the database management system. In this tutorial article, we have learned two ways to create a table in a database and also different constraints which we can apply to ...
store data modify data retrieve data modify data delete data create tables and other database objects delete data Beginner SQL Reference Link to this Beginner-SQL-Tutorial.com SQL Home page (copy/paste into your own website or blog):
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To complete this tutorial, you need SQL Server Management Studio and access to a SQL Server instance. Install SQL Server Management Studio. If you don't have a SQL Server instance, create one. To create one, select your platform from the following links. If you choose SQL Authentication, us...